• 2011 Chevrolet Silverado Owner Manual M

.1-1 Instrument Panel.1-2 Initial Drive Information.10-1 General Information.10-2 Vehicle Checks.10-4 Headlamp Aiming. For vehicles first sold in Canada, substitute the name General Motors of Canada Limited for Chevrolet Motor Division wherever it appears in this manual. ® If the vehicle has the Duramax diesel engine, see the Duramax diesel supplement for additional and specific information on this engine. To quickly locate information about the vehicle, use the Index in the back of the manual. It is an alphabetical list of what is in the manual and the page number where it can be found. Warning messages found on vehicle labels and in this manual describe hazards and what to do to avoid or reduce them. Here are some additional symbols that may be found on the vehicle and what they mean.

For more information on the symbol, refer to the Index. Adjustable Pedals Airbag Readiness Light Air Conditioning Antilock Brake System (ABS) Audio Steering Wheel Controls ®.

View and Download Chevrolet Silverado 2500HD. Automobile Chevrolet 2010 Silverado 1500 Owner's Manual. For more information. 2011 Chevrolet Municipal. View and Download Chevrolet 2011 Silverado 2500 owner's manual online. Chevrolet 2011 Silverado 2500 Automobile Owner's Manual. 2011 Silverado 2500 Automobile pdf manual download. 2011 Chevrolet Silverado Owner Manual M In Brief. CHEVROLET, the CHEVROLET Emblem, SILVERADO, and Z71 are trademarks and/or service marks of General Motors LLC, its.

Instruments and Controls Controls Steering Wheel Adjustment. 5-2 Steering Wheel Controls.5-2 Horn.5-4 Windshield Wiper/Washer. Instruments and Controls Airbag System Messages.5-47 Anti-theft Alarm System Messages.5-47 Starting the Vehicle Messages.5-48 Tire Messages. Radio To select preset or favorite radio stations: Press and release go to the next or previous radio station stored as a preset or favorite. CD/DVD To select tracks on a CD/DVD: Press and release go to the next or previous track. Selecting Tracks on an iPod or USB Device (Vehicles without a Navigation System). Instruments and Controls 3.

Press and release to move up one track within the selected category. (Mute/Push to Talk): Press to silence the vehicle speakers only. Press again to turn the sound on. For vehicles with Bluetooth or OnStar systems, press and hold for longer than two seconds to interact with those systems. (Adjustable Interval Wipes): Turn the band up for more frequent wipes or down for less frequent wipes. (Low Speed): Slow wipes. (High Speed): Fast wipes.

Clear ice and snow from the wiper blades before using them. If frozen to the windshield, carefully loosen or thaw them. Instruments and Controls 2. Find the vehicle's current location and variance zone number on the map. Zones 1 through 15 are available. Press the set/reset button to scroll through and select the appropriate variance zone.

Press the trip/fuel button until the vehicle heading, for example, N for North, is displayed in the DIC. Press the vehicle information button until PRESS CALIBRATE COMPASS displays.

Or, if the vehicle does not have DIC buttons, press the trip odometer reset stem until CALIBRATE COMPASS displays. Press the set/reset button to start the compass calibration. Or, if the vehicle does not have DIC buttons, press and hold the trip odometer reset stem. Instruments and Controls 4. To increase the time or date, do one of the following: Press the softkey below the selected tab. Press the SEEK button. Press the FWD button.

Turn the knob clockwise. To decrease the time or date, do one of the following: Press the SEEK button. To increase the time or date, do one of the following: Press the softkey below the selected tab. Press the SEEK button. Press the FWD button.

Turn the knob clockwise. To decrease the time or date, do one of the following: Press the SEEK button. 5-10 Instruments and Controls The accessory power outlets are powered, even when the ignition is in LOCK/OFF. Continuing to use power outlets while the ignition is in LOCK/OFF may cause the vehicle's battery to run down. WARNING Power is always supplied to the outlets. Ashtrays The vehicle may have a front ashtray located near the center of the instrument panel. Pull on the door to open it.

The ashtray may have a cigarette lighter. If papers, pins, or other flammable items are put in the ashtray, hot cigarettes or other smoking materials could ignite them and possibly damage the. 5-12 Instruments and Controls Instrument Cluster English Light Duty Premium Shown.

Metric, Uplevel, Base, Heavy Duty Similar. Instruments and Controls 5-13 Automatic Transmsission Cluster-Mexico Only. 5-14 Instruments and Controls Manual Transmission Cluster-Mexico Only. If the vehicle has a diesel engine, see the Duramax diesel supplement for more information. If the vehicle is a hybrid, see the hybrid supplement for more information. Speedometer The speedometer shows the vehicle speed in both kilometers per hour (km/h) and miles per hour (mph). 5-16 Instruments and Controls Fuel Gauge Metric English When the ignition is on, the fuel gauge shows about how much fuel is left in the fuel tank.

An arrow on the fuel gauge indicates the side of the vehicle the fuel door is on. The gauge will first indicate empty before the vehicle is out of fuel, but the vehicle's fuel tank should be. Engine Oil Pressure Gauge Metric Instruments and Controls English For vehicles with an engine oil pressure gauge, it shows the engine oil pressure in kPa (kilopascals) or psi (pounds per square inch) when the engine is running.

2011 Chevrolet Silverado Owner Manual M

5-17 Oil pressure can vary with engine speed, outside temperature and oil viscosity, but if readings are outside the normal operating range, the oil. 5-18 Instruments and Controls See OIL PRESSURE LOW STOP ENGINE under WARNING Do not keep driving if the oil pressure is low.

The engine can become so hot that it catches fire. Someone could be burned. Check the oil as soon as possible and have the vehicle serviced. If the vehicle is a hybrid, see the hybrid supplement for more information. Voltmeter Gauge For vehicles with a voltmeter gauge, this gauge indicates the battery voltage when the ignition is turned on.

Instruments and Controls When the ignition is on, this gauge indicates the battery voltage. 5-20 Instruments and Controls Safety Belt Reminders Driver Safety Belt Reminder Light When the engine is started, a chime sounds for several seconds, on vehicles equipped with a radio, to remind the driver to fasten the safety belt, unless the driver safety belt is already buckled.

The airbag readiness light comes on solid for a few seconds when the engine is started. If the light does not come on then, have it fixed immediately. WARNING If the airbag readiness light stays on after the vehicle is started or comes on while driving, it means the airbag system might not be working properly. 5-22 Instruments and Controls This light will go off when the airbag has been turned on. See more information, including important safety information.

United States Canada and Mexico WARNING If the right front passenger airbag is turned off for a person who is not in a risk group identified by the national government, that person will not have the extra. WARNING (Continued) To help avoid injury to yourself or others, have the vehicle serviced right away.

See for more information, including important safety information. If the word ON or the on symbol is lit, it means that the right front passenger frontal airbag is enabled (may inflate). 5-24 Instruments and Controls If the word ON or the on symbol is lit on the passenger airbag status indicator, it means that the right front passenger frontal airbag is enabled (may inflate). If the word OFF or the off symbol is lit on the airbag status indicator, it means that the passenger sensing system has turned off the right front.

This light should come on when the ignition is on, but the engine is not running, as a check to show it is working. If it does not, have the vehicle serviced by your dealer.

If the malfunction indicator lamp comes on and stays on while the engine is running, this indicates that there is an OBD II problem and. 5-26 Instruments and Controls Light On Steady: An emission control system malfunction has been detected on the vehicle. Diagnosis and service might be required. The following may correct an emissions system malfunction: Check that the fuel cap is fully installed. Emissions Inspection and Maintenance Programs Some state/provincial and local governments may have programs to inspect the on-vehicle emission control equipment. For the inspection, the emission system test equipment is connected to the vehicle s Data Link Connector (DLC). The DLC is under the instrument panel to the left of the steering wheel.

5-28 Instruments and Controls This light can also come on due to low brake fluid. See for more information. Metric English This light comes on briefly when the ignition key is turned to ON/RUN. If it does not come on then, have it fixed so it is ready to warn if there is a problem. If the regular brake system warning light is not on, the vehicle still has brakes, but not antilock brakes.

If the regular brake system warning light is also on, the vehicle does not have antilock brakes and there is a problem with the regular brakes. 5-30 Instruments and Controls ® StabiliTrak Indicator Light For vehicles with the StabiliTrak system, this light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. If the system is working normally the indicator light then goes off. Engine Oil Pressure Light WARNING Do not keep driving if the oil pressure is low.

The engine can become so hot that it catches fire. Someone could be burned. Check the oil as soon as possible and have the vehicle serviced.

Lack of proper engine oil maintenance can damage the engine. 5-32 Instruments and Controls High-Beam On Light This light comes on when the high-beam headlamps are in use. For more information.

Front Fog Lamp Light For vehicles equipped with fog lamps, this light comes on when the fog lamps are in use. The light goes out when the fog lamps are turned off.

The DIC has different displays which can be accessed by pressing the DIC buttons located on the instrument panel, next to the steering wheel. If the vehicle does not have DIC buttons, the trip odometer reset stem can be used to access some of the menu items. 5-34 Instruments and Controls Trip/Fuel Menu Items (with DIC Buttons) (Trip/Fuel): Press this button to scroll through the following menu items: Odometer Press the trip/fuel button until ODOMETER displays. This display shows the distance the vehicle has been driven in either kilometers (km) or miles. fuel economies. Generally, freeway driving produces better fuel economy than city driving. Fuel range cannot be reset.

Average Economy Press the trip/fuel button until AVG ECONOMY displays. This display shows the approximate average liters per 100 kilometers (L/100 km) or miles per gallon (mpg). This number is calculated based on the number of L/100 km (mpg) recorded since the last time this menu item. 5-36 Instruments and Controls An Active Fuel Management indicator displays on the right side of the DIC, while INST ECON displays on the left side.

Active Fuel Management allows the engine to operate on either four or eight cylinders, depending on driving demands. Tire Pressure If the vehicle has the Tire Pressure Monitor System (TPMS), the pressure for each tire can be viewed in the DIC. The tire pressure will be shown in either kilopascals (kPa) or pounds per square inch (psi). Press the vehicle information button until the DIC displays FRONT TIRES kPa (PSI) LEFT ## RIGHT ##. 5-38 Instruments and Controls Trip Odometer Press the trip odometer reset stem until TRIP displays. This display shows the current distance traveled in either kilometers (km) or miles (mi) since the last reset for the trip odometer. The trip odometer can be reset to zero by pressing and holding the trip odometer reset stem while the trip odometer is displayed.

Trip Odometer Reset Stem Menu Items (without DIC Buttons) Language This display allows you to select the language in which the DIC messages will appear. To select a language: 1. Press the trip odometer reset stem until ODOMETER displays.

While in the ODOMETER display, press and hold the trip odometer reset stem for three seconds until the currently. 5-40 Instruments and Controls Trailer Gain and Output On vehicles with the Integrated Trailer Brake Control (ITBC) system, the trailer brake display appears in the DIC.

Press the trip odometer reset stem until TRAILER GAIN and OUTPUT display. TRAILER GAIN shows the trailer gain setting.

Vehicle Messages Messages displayed on the DIC indicate the status of the vehicle or some action may be needed to correct a condition. Multiple messages may appear one after another. The messages that do not require immediate action can be acknowledged and cleared by pressing (Set/Reset) or the trip. 5-42 Instruments and Controls SERVICE BRAKES SOON On some vehicles, this message displays if there is a problem with the brake system. If this message appears, stop as soon as possible and turn off the vehicle. Restart the vehicle and check for the message on the DIC display. PASSENGER DOOR OPEN This message displays and a chime may sound if the front passenger door is not fully closed and the vehicle is shifted out of P (Park).

Stop and turn off the vehicle, check the door for obstructions, and close the door again. 5-44 Instruments and Controls ENGINE OVERHEATED STOP ENGINE If you drive the vehicle while the engine is overheating, severe engine damage may occur. If an overheat warning appears on the instrument panel cluster and/or DIC, stop the vehicle as soon as possible.

For more information. Engine Power Messages ENGINE POWER IS REDUCED This message displays and a chime may sound when the cooling system temperature gets too hot and the engine further enters the engine coolant protection mode. See for more information. This message also displays when the vehicle's engine power is reduced. 5-46 Instruments and Controls Object Detection System Messages PARK ASST BLOCKED SEE OWNERS MANUAL If the vehicle has the Ultrasonic Rear Parking Assist (URPA) system, this message displays if there is something interfering with the park assist system. See more information. PARK ASSIST OFF If the vehicle has the Ultrasonic Rear Parking Assist (URPA) system.

STABILITRAK OFF If the vehicle has StabiliTrak, this message displays when you turn off StabiliTrak, or when the stability control has been automatically disabled. To limit wheel spin and realize the full benefits of the stability enhancement system, you should normally leave StabiliTrak on. 5-48 Instruments and Controls Starting the Vehicle Messages FAST IDLE ON If your vehicle has this feature, this message displays when the fast idle feature is on. See for more information.

Tire Messages SERVICE TIRE MONITOR SYSTEM If the vehicle has the Tire Pressure Monitor System (TPMS), this message displays if a part on the system is not working properly. Transmission Messages SERVICE 4 WHEEL DRIVE If the vehicle has four-wheel drive, this message may display if a problem occurs with the four-wheel-drive system. If this message appears, stop as soon as possible and turn off the vehicle. Make sure the key is in the LOCK/ OFF position for at least one minute and then restart the vehicle and check for the message on the DIC. 5-50 Instruments and Controls As soon as it is safe to do so, carefully pull the vehicle over to the side of the road and turn the ignition off.

Check the wiring connection to the trailer and turn the ignition back on. To change customization preferences, use the following procedure. Entering the Feature Settings Menu 1. Turn the ignition on and place the vehicle in P (Park). To avoid excessive drain on the battery, turn the headlamps off. Press the customization button to scroll through the available customizable options.

5-52 Instruments and Controls Press the customization button until AUTO DOOR LOCK appears on the DIC display. Press the set/reset button once to access the settings for this feature.

Then press the customization button to scroll through the following settings: SHIFT OUT OF PARK (default): The doors will automatically lock when the vehicle is shifted out of. Press the customization button until REMOTE DOOR LOCK appears on the DIC display. Press the set/reset button once to access the settings for this feature. Then press the customization button to scroll through the following settings: OFF: There will be no feedback when you press the lock button on the RKE transmitter. 5-54 Instruments and Controls Press the customization button until DELAY DOOR LOCK appears on the DIC display. Press the set/reset button once to access the settings for this feature.

Then press the customization button to scroll through the following settings: OFF: There will be no delayed locking of the vehicle's doors. more information. NO CHANGE: No change will be made to this feature. The current setting will remain. To select a setting, press the set/ reset button while the desired setting is displayed on the DIC. CHIME VOLUME If available, this feature allows you to select the volume level of the chime.

5-56 Instruments and Controls Press the customization button until EASY EXIT RECALL appears on the DIC display. Press the set/reset button once to access the settings for this feature. Then press the customization button to scroll through the following settings: DOOR BUTTON ONLY: No automatic seat exit recall will occur. ON: The driver seat and, on some vehicles, the outside mirrors will automatically move to the stored driving position when the unlock button on the Remote Keyless Entry (RKE) transmitter is pressed.

On some vehicles with the adjustable throttle and brake pedal feature, the pedals will also automatically move. 5-58 Instruments and Controls If you do not exit, pressing the customization button again will return you to the beginning of the feature settings menu. Exiting the Feature Settings Menu The feature settings menu will be exited when any of the following occurs: The vehicle is no longer in ON/RUN. Park the vehicle outside of the garage when programming a garage door.

Be sure that people and objects are clear of the garage door or gate that is being programmed. Programming Universal Home Remote Rolling Code For questions or help programming the Universal Home Remote System, call 1-866-572-2728 or go to www.learcar2u.com. 5-60 Instruments and Controls To program another Rolling Code device such as an additional garage door opener, a security device, or home automation device, repeat Steps 1 through 5, choosing a different function button in Step 3 than what was used for the garage door opener. The motor head dip switch settings can also be used when the original hand-held transmitter is not available. Example of Eight Dip Switches with Two Positions Example of Eight Dip Switches with Three Positions The panel of switches might not appear exactly as they do in the examples above, but they should be similar. 5-62 Instruments and Controls 3.

From inside your vehicle, first firmly press all three buttons at the same time for about three seconds. Release the buttons to put the Universal Home Remote into programming mode. Left Button (Up, +, or On) B. Universal Remote System Operation Press and hold the appropriate button for at least half of a second. The indicator light will come on while the signal is being transmitted. Reprogramming Universal Home Remote Buttons Any of the three buttons can be reprogrammed by repeating the instructions.

5-64 Instruments and Controls NOTES. Defensive Driving. 9-2 Drunk Driving.9-2 Control of a Vehicle. Fuel E85 (85% Ethanol).9-81 Filling the Tank.9-83 Filling a Portable Fuel Container.9-84 General Towing Information. And, of course, actual stopping distances vary greatly with the surface of the road, whether it is pavement or gravel; the condition of the road, whether it is wet, dry, or icy; tire tread; the condition of the brakes; the weight of the vehicle; and the amount of brake force applied. There are times when steering can be more effective than braking. For example, you come over a hill and find a truck stopped in your lane, or a car suddenly pulls out from nowhere, or a child darts out from between parked cars and stops right in front of you.

Turn the steering wheel 8 to 13 cm (3 to 5 in), about one-eighth turn, until the right front tire contacts the pavement edge. Then turn the steering wheel to go straight down the roadway. Let us review what driving experts say about what happens when the three control systems brakes. Vehicles with four-wheel drive can be used for off-road driving.

Vehicles without four-wheel drive and vehicles with 20 inch tire/wheel assemblies should not be driven off-road except on a level, solid surface. The airbag system is designed to work properly under a wide range of conditions, including off road usage. To remove the air dam: 1. Remove the 2 outboard air dam bolts. With a flat blade tool, disengage the snaps.

After the bolts are removed and the snaps are disengaged, push forward on the air dam until it is free. Off-road driving can provide wholesome and satisfying recreation. However, it also raises environmental concerns. We recognize these concerns and urge every off-roader to follow these basic rules for protecting the environment: Always use established trails, roads, and areas that have been specially set aside for public off-road recreational driving and obey all posted regulations.

The vehicle has more bounce when driving over obstacles. More braking distance is needed, especially on an unpaved surface. When you are driving off-road, bouncing and quick changes in direction can easily throw you out of position.

This could cause you to lose control and crash. Off-road driving often takes you up, down, or across a hill. Driving safely on hills requires good judgment and an understanding of what the vehicle can and cannot do.

There are some hills that simply cannot be driven, no matter how well built the vehicle. Once you decide it is safe to drive up the hill: Use a low gear and get a firm grip on the steering wheel. Get a smooth start up the hill and try to maintain speed. Not using more power than needed can avoid spinning the wheels or sliding.

While backing down the hill, put your left hand on the steering wheel at the 12 o'clock position so you can tell if the wheels are straight and can maneuver as you back down. It is best to back down the hill with the wheels straight rather than in the left or right direction. What is at the bottom of the hill? Is there a hidden creek bank or even a river bottom with large rocks? If you decide you can go down a hill safely, try to keep the vehicle headed straight down.

Use a low gear so engine drag can help the brakes so they do not have to do all the work. between the left and right wheels might not prevent the vehicle from tilting and rolling over. Driving across an incline puts more weight on the downhill wheels which could cause a downhill slide or a rollover. Surface conditions can be a problem.

When you drive in mud, snow, or sand, the wheels do not get good traction. Acceleration is not as quick, turning is more difficult, and braking distances are longer. It is best to use a low gear when in the deeper the mud, the lower the gear. Stalling can also occur if you get the tailpipe under water. If the tailpipe is under water, you will never be able to start the engine. When going through water, remember that when the brakes get wet, it might take longer to stop.

Besides slowing down, other wet weather driving tips include: Allow extra following distance. Pass with caution. Keep windshield wiping equipment in good shape. Keep the windshield washer fluid reservoir filled. Have good tires with proper tread depth. See Turn off cruise control.

Always be alert and pay attention to your surroundings while driving. Stay in your own lane. Do not swing wide or cut across the center of the road. Drive at speeds that let you stay in your own lane.

Top of hills: Be alert something could be in your lane (stalled car, accident). Pay attention to special road signs (falling rocks area, winding roads, long grades, passing. Being stuck in snow can be a serious situation. Stay with the vehicle unless there is help nearby. If possible, use the. To get help and keep everyone in the vehicle safe: Turn on the hazard warning flashers.

Tie a red cloth to an outside mirror. Repeat this until help arrives but only when you feel really uncomfortable from the cold. Moving about to keep warm also helps. If it takes some time for help to arrive, now and then when you run the engine, push the accelerator pedal slightly so the engine runs faster than the idle speed. These hooks, when used, are under a lot of force. Always pull the vehicle straight out.

Never pull on the hooks at a sideways angle. The hooks could break off and you or others could be injured from the chain or cable snapping back. vehicle handles. This could cause loss of control and a crash. Overloading can also shorten the life of the vehicle. A vehicle specific Tire and Loading Information label is attached to the center pillar (B-pillar). With the driver door open, you will find the label attached below the door lock post (striker).

The resulting figure equals the available amount of cargo and luggage load capacity. For example, if the XXX amount equals 1400 lbs and there will be five 150 lb passengers in your vehicle, the amount of available cargo and luggage load capacity is 650 lbs (1400 750 (5x150) = 650 lbs). Vehicle Capacity Weight for Example 3 = 453 kg (1,000 lbs) B. Subtract Occupant Weight @ 91 kg (200 lbs) × 5 = 453 kg (1,000 lbs) C. Available Cargo Weight = 0 kg (0 lbs) Refer to your vehicle's tire and loading information label for specific information about your vehicle's capacity weight and. The Certification/Tire label also contains important information about your Front Axle Reserve Capacity. See What is front axle reserve capacity, and how do I calculate it?

Under In the case of a sudden stop or collision, things carried in the bed of your truck could shift forward and come into the passenger area, injuring you and others. When you carry removable items, you may need to put a limit on how many people you carry inside your vehicle. Be sure to weigh your vehicle before you buy and install the new equipment. Remember not to exceed the Gross Axle Weight Rating (GAWR) of the front or rear axle. Depending on the accessory design, use a spacer under the accessory at the load points to remove gap. The holes for the Cargo Management System (C) are not intended for attachment of aftermarket equipment.

See www.gmupfitter.com for additional pick-up box load bearing structural information. Here is an example of proper truck and camper match: Camper Center of Gravity Recommended Center of Gravity Location Zone When the truck is used to carry a slide in camper, the total cargo load of the truck consists of the manufacturer's camper weight figure, the weight of installed additional camper equipment not. On vehicles with this feature, you can change the position of the throttle and brake pedals. No adjustment to the pedals can be made when the vehicle is in R (Reverse) or while using cruise control. The control used to adjust the pedals is located on the instrument panel below the climate control system. The ignition switch has four different positions. To shift out of P (Park), the ignition must be in ON/RUN or ACC/ACCESSORY and the regular brake pedal must be applied.

When the vehicle is stopped, turn the ignition switch to LOCK/OFF to turn the engine off. Retained Accessory Power (RAP) will remain active. The steering can bind with the wheels turned off center. If this happens, move the steering wheel from right to left while turning the key to ACC/ACCESSORY.

If this doesn't work, then the vehicle needs service. This position lets things like the radio and the windshield wipers operate while the engine is off. Move the shift lever to P (Park) or N (Neutral). The engine will not start in any other position. To restart the engine when the vehicle is already moving, use N (Neutral) only. The shift lever should be in N (Neutral) and the parking brake engaged.

flooded with too much gasoline. Try pushing the accelerator pedal all the way to the floor and holding it there as you hold the key in START for up to 15 seconds.

Wait at least 15 seconds between each try, to allow the cranking motor to cool down. The following vehicle accessories can be used for up to 10 minutes after the engine is turned off: Audio System Power Windows OnStar System (if equipped) Sunroof (if equipped) These features work when the key is in ON/RUN or ACC/ ACCESSORY. Plug the cord into a properly grounded three-prong 110-volt AC outlet. If the cord will not reach, use a heavy-duty three-prong extension cord rated for at least 15 amps. Before starting the engine, be sure to unplug and store the cord as it was before to keep it away from moving engine parts. It can be dangerous to leave the vehicle with the engine running. The vehicle could move suddenly if the shift lever is not fully in P (Park) with the parking brake firmly set.

If you have four-wheel drive and the transfer case is in N (Neutral), the vehicle will be free to roll, even if the shift lever is in P (Park). The shift lock release is always functional except in the case of an uncharged or low voltage (less than 9 volt) battery. If the vehicle has an uncharged battery or a battery with low voltage, try charging or jump starting the battery. Vehicles with V8 engines may have Active Fuel Management. This system allows the engine to operate on either all or half of its cylinders, depending on the driving conditions. When less power is required, such as cruising at a constant vehicle speed, the system will operate in the half cylinder mode, allowing the vehicle to achieve better fuel. It is better not to park with the engine running.

But if you ever have to, here are some things to know. Idling a vehicle in an enclosed area with poor ventilation is dangerous. Engine exhaust may enter the vehicle.

Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. If the vehicle is a hybrid, see the hybrid supplement for more information.

Vehicles with an automatic transmission have an electronic shift position indicator within the instrument panel cluster. This display comes on when the ignition key is turned to the ON/RUN position. If you have Four-Wheel Drive, the vehicle will be free to roll even if the shift lever is in P (Park) the transfer case is in Neutral. So, be sure the transfer case is in a drive gear, Two-Wheel Drive High or Four-Wheel Drive High or Four-Wheel Drive Low not in. The vehicle has a shift stabilization feature that adjusts the transmission shifting to the current driving conditions in order to reduce rapid upshifts and downshifts.

This shift stabilization feature is designed to determine, before making an upshift, if the engine is able to maintain vehicle speed by analyzing things such as vehicle speed, throttle position, and vehicle load. For the Hydra-Matic 4-Speed transmission this position reduces vehicle speed even more than 2 (Second) without using the brakes. You can use it on very steep hills, or in deep snow or mud. If the shift lever is put in 1 (First) while the vehicle is moving forward, the transmission does not shift into first gear until the vehicle is going slowly. Grade Braking is not available when Range Selection Mode is active. While using Range Selection Mode, Cruise Control and the Tow/Haul Mode can be used.

If the vehicle has an exhaust brake, it can also be used, but will not automatically downshift the transmission. Vehicles with an Allison Transmission or Hydra-Matic 6-Speed Automatic Transmission have a Tow/Haul Mode.

The Tow/ Haul Mode adjusts the transmission shift pattern to reduce shift cycling, providing increased performance, vehicle control, and transmission cooling when towing or hauling heavy loads. Turn the Tow/Haul Mode on and off by pressing the button, located on the end of the shift lever. Cruise Grade Braking assists when driving on a downhill grade. It maintains vehicle speed by automatically implementing a shift schedule that uses the engine and the transmission to slow the vehicle. Cruise Grade Braking operates while Cruise Control is engaged in Tow/Haul Mode to assist in maintaining vehicle speed under loaded vehicle conditions. You can shift into 1 (First) when you are going less than 30 km/h (20 mph).

If you have come to a complete stop and it is hard to shift into 1 (First), put the shift lever in Neutral and let up on the clutch. Then press the clutch pedal back down and shift into 1 (First). If the vehicle has Four-Wheel Drive, you can send the engine's driving power to all four wheels for extra traction. To get the most satisfaction out of Four-Wheel Drive, you must be familiar with its operation.

Read the following before using Four-Wheel Drive. See the appropriate text for the transfer case in the vehicle. A Four-Wheel Drive indicator light comes on when you shift into four-wheel drive and the front axle engages. See Some delay between shifting and when the indicator light comes on is normal. Normal Severe Extreme Vehicle in Tow.See This setting also engages the front axle and delivers extra torque.

® If the vehicle has StabiliTrak shifting into Four-Wheel Drive Low will turn Traction Control and StabiliTrak off. See A parking brake symbol is located next to the N (Neutral) symbol as a reminder to set the parking brake before shifting the transfer case into N (Neutral). Avoid driving in Four-Wheel Drive on clean, dry pavement.

It may cause your tires to wear faster, make the transfer case harder to shift, and run noisier. If the transfer case shifter is in the N (Neutral) position and you have difficulty reaching the selected transfer case mode, with the engine running, shift the. Shift the transmission into N (Neutral). Shifting the transfer case to N (Neutral) can cause the vehicle to roll even if the transmission is in P (Park). You or someone else could be seriously injured. Be sure to set the parking brake before placing the transfer case in N (Neutral).

Normal Severe Extreme Vehicle in Tow.See You can choose among four driving settings: Indicator lights in the dial show which setting you are in. The indicator lights will come on briefly when you turn on the ignition and one will stay on. If the lights do not come on, you should take the vehicle to your dealer for service. ® If the vehicle has StabiliTrak shifting into Four-Wheel Drive Low will turn Traction Control and StabiliTrak off. See Shifting the transfer case to N (Neutral) can cause the vehicle to roll even if the transmission is in P (Park).

You or someone else could be seriously injured. It is typical for the vehicle to exhibit significant engagement noise and bump when shifting between Four-Wheel Drive Low and Four-Wheel Drive High ranges or from transfer case N (Neutral) with the engine running. If the knob is turned to the Four-Wheel Drive Low position when the vehicle is in gear and/or moving, the Four-Wheel Drive.

To shift the transfer case to N (Neutral) do the following: 1. Make sure the vehicle is parked so that it will not roll. Set the parking brake and press and hold the regular brake pedal. See for more information. This will protect the transfer case from possible damage and will only allow the transfer case to respond to one shift per 10 seconds. The transfer case may stay in this mode for up to three minutes.

The transfer case knob is located next to the steering column. This setting also engages the front axle and delivers extra torque. You may never need this setting.

It sends maximum power to all four wheels. You might choose Four-Wheel Drive Low if you are driving off-road in deep sand, deep mud, deep snow, and while climbing or descending steep hills.

You must wait for the Four-Wheel Drive Low indicator light to stop flashing and remain on before shifting the transmission into gear. It is typical for the vehicle to exhibit significant engagement noise and bump when shifting between Four-Wheel Drive Low and Four-Wheel Drive High ranges or from N (Neutral) with the engine running. To shift the transfer case to N (Neutral) do the following: 1. Make sure the vehicle is parked so that it will not roll. Set the parking brake and apply the regular brake pedal. See more information.

Shifting the transfer case into N (Neutral) can be done with or without the engine running. Release the parking brake prior to moving the vehicle.

Start the engine and shift the transmission to the desired position. This vehicle might have the Antilock Brake System (ABS), an advanced electronic braking system that helps prevent a braking skid. When the engine is started and the vehicle begins to drive away, ABS checks itself. As the brakes are applied, the computer keeps receiving updates on wheel speed and controls braking pressure accordingly. Remember: ABS does not change the time needed to get a foot up to the brake pedal or always decrease stopping distance.

If you get too close to the vehicle in front of you, there will not be enough time to apply the brakes if that vehicle. To release the parking brake, hold the regular brake pedal down. Then pull the bottom edge of the lever with the parking brake symbol, located above the parking brake pedal. If the ignition is on when the parking brake is released, the brake system warning light goes off. ® If this vehicle has StabiliTrak, it also has a Brake Assist feature designed to assist the driver in stopping or decreasing vehicle speed in emergency driving conditions.

This feature uses the stability system hydraulic brake control module to supplement the power brake system under conditions where the driver has quickly and forcefully applied the. The vehicle may have a vehicle stability enhancement system called ® StabiliTrak. It is an advanced computer-controlled system that assists the driver with directional control of the vehicle in difficult driving conditions. StabiliTrak activates when the computer senses a discrepancy between the intended path and the direction the vehicle is actually traveling. The Traction Control System (TCS) part of StabiliTrak can be turned off by pressing and releasing the StabiliTrak button.

To disable both TCS and StabiliTrak, press and hold until illuminates and the appropriate DIC message displays. TCS and StabiliTrak can be turned on by pressing and releasing the StabiliTrak button if they are not automatically shut off for any other. The traction control system may activate on dry or rough roads or under conditions such as heavy acceleration while turning or abrupt upshifts/downshifts of the transmission. When this happens, a reduction in acceleration may be noticed, or a noise or vibration may be heard. For vehicles with an Allison or Hydra Matic 6 speed automatic transmission, see Grade Braking and Cruise Grade Braking (Allison Transmission) under for an explanation of how cruise control interacts with the Range Selection Mode, tow/haul and grade braking systems.

For vehicles with the StabiliTrak system that begins to limit wheel spin while you are using cruise. If the cruise control is set at a desired speed and then the brakes are applied, the cruise control is disengaged without erasing the set speed from memory. Once the vehicle speed reaches about 40 km/h (25 mph) or more, press the +RES button on the steering wheel.

For vehicles with the Ultrasonic Rear Parking Assist (URPA) system, it operates at speeds less than 8 km/h (5 mph), and assists the driver with parking and avoiding objects while in R (Reverse). The sensors on the rear bumper are used to detect the distance to an object up to 2.5 m (8 ft) behind the vehicle, and at least 25.4 cm (10 in).

The system can be disabled by pressing the rear park aid disable button located next to the radio. The indicator light comes on and PARK ASSIST OFF displays on the Driver Information Center (DIC) to indicate that URPA is off; see The following messages may be displayed on the DIC: If this. This vehicle may have a Rear Vision Camera (RVC) system. Read this entire section before using it. The Rear Vision Camera (RVC) system does not replace driver vision. RVC does not: Detect objects that are outside the camera's field of view, below the bumper, or underneath the vehicle.

The RVC system is designed to help the driver when backing up by displaying a view of the area behind the vehicle. When the driver shifts the vehicle into R (Reverse), the video image automatically appears on the navigation screen. Once the driver shifts out of R (Reverse), the navigation screen will go back to the last screen that had been displayed. The navigation system may have a feature that lets the driver view symbols on the navigation screen while using the RVC. The Ultrasonic Rear Park Assist (URPA) system must not be disabled to use the caution symbols. If URPA has been disabled and the symbols have been turned on, the Rear Parking Assist Symbols Unavailable error. screen can vary according to vehicle orientation or road conditions.

The following illustration shows the field of view that the camera provides. View displayed by the camera B.

Corner of the rear bumper The rear vision camera must be disconnected if the tailgate needs to be removed. The RVC system might not work properly or display a clear image if: The RVC is turned off. See Turning the Rear Camera System On or Off earlier in this section. The sun or the beam of headlights is shining directly into the camera lens. For diesel engine vehicles, see Fuel for Diesel Engines in the Duramax Diesel Supplement. For Vehicles with gasoline engines, please read this.

Use of the recommended fuel is an important part of the proper maintenance of this vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline. If the vehicle has the 6.2L V8 engine (VIN Code 2), use premium unleaded gasoline with a posted octane rating of 91 or higher. You can also use regular unleaded gasoline rated at 87 octane or higher, but the vehicle's acceleration could be slightly reduced, and a slight audible knocking noise, commonly referred to as spark. However, some gasolines contain only the minimum amount of additive required to meet U.S. Environmental Protection Agency regulations. To help keep fuel injectors and intake valves clean and avoid problems due to dirty injectors or valves, look for gasoline that is advertised as TOP TIER Detergent Gasoline.

Many service stations will not have an 85% ethanol fuel (E85) pump available. Department of Energy has an alternative fuels website (www.afdc.energy.gov/afdc/ locator/stations/) that can help you find E85 fuel. Those stations that do have E85 should have a label indicating ethanol content. If the vehicle has a diesel engine, see the Duramax diesel supplement for more information. Fuel vapor burns violently and a fuel fire can cause bad injuries.

To help avoid injuries to you and others, read and follow all the instructions on the fuel pump island. When replacing the fuel cap, turn it clockwise until it clicks.

It will require more effort to turn the fuel cap on the last turn as you tighten it. Make sure the cap is fully installed. The diagnostic system can determine if the fuel cap has been left off or improperly installed. Bring the fill nozzle in contact with the inside of the fill opening before operating the nozzle. Contact should be maintained until the filling is complete. Do not smoke while pumping fuel. Do not use a cellular phone while pumping fuel.

Only use towing equipment that has been designed for the vehicle. Do not tow a trailer at all during the first 800 km (500 miles) the new vehicle is driven. The engine, axle, or other parts could be damaged. During the first 800 km (500 miles) that a trailer is towed, do not drive over 80 km/h (50 mph) and do not make starts at full throttle. Before starting, check all trailer hitch parts and attachments, safety chains, electrical connectors, lamps, tires, and mirrors.

If the trailer has electric brakes, start the combination moving and then apply the trailer brake controller by hand to be sure the brakes work. During the trip, check occasionally to be sure that the load is secure and the lamps and any trailer. When towing at high altitude on steep uphill grades, consider the following: Engine coolant will boil at a lower temperature than at normal altitudes. If the engine is turned off immediately after towing at high altitude on steep uphill grades, the vehicle may show signs similar to engine overheating. Apply and hold the brake pedal. Start the engine. Shift into a gear.

Release the parking brake. Let up on the brake pedal. Drive slowly until the trailer is clear of the chocks. Stop and have someone pick up and store the chocks.

Trailering is different than just driving the vehicle by itself. Trailering means changes in handling, acceleration, braking, durability, and fuel economy. Successful, safe trailering takes correct equipment, and it has to be used properly. The following information has many time-tested, important trailering tips and safety rules.