Workshop Repair and Service Manuals GMC SIERRA
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User Manual

Grade Braking (6-Speed Automatic Transmission)      The Grade Braking shift modes can be activated by pressing the button on the end of the shift control lever. While in Range Selection Mode, Grade Braking is deactivated allowing the driver to select a desired range of...
Instrument Panel, Leather, Vinyl, & Other Plastic Surfaces      Use a soft microfiber cloth dampened with water to remove dust and loose dirt. For a more thorough cleaning, use a soft microfiber cloth dampened with a mild soap solution. Notice: Soaking or saturating leather, especially...
Wheel Alignment      Wheel alignment is critical for ensuring that the tires deliver optimal wear and performance. • Signs that the alignment may need to be adjusted include pulling, improper vehicle handling, or unusual tire wear. • Your...
Locking Rear Axle      Vehicles with a locking rear axle can give more traction on snow, mud, ice, sand, or gravel. It works like a standard axle most of the time, but when traction is low, this feature will allow the rear wheel with the most...
Reporting Safety Defects to the Canadian Government      If you live in Canada, and you believe that the vehicle has a safety defect, notify Transport Canada immediately, and notify General Motors of Canada Limited. Call Transport Canada at 1-800-333-0510 or write to: Transport...
Rear Seats (All Split Bench and Hybrid Full Bench)      Folding Rear Seat Either side of the rear seat can be folded for added cargo space. Notice: Folding a rear seat with the safety belts still fastened may cause damage to the seat or the safety belts. Always unbuckle...
California Perchlorate Materials Requirements      Certain types of automotive applications, such as airbag initiators, seat belt pretensioners, and lithium batteries contained in Remote Keyless Entry transmitters, may contain perchlorate materials. Special handling may be...
Filling a Portable Fuel Container      WARNING Never fill a portable fuel container while it is in the vehicle. Static electricity discharge from the container can ignite the fuel vapor. You can be badly burned and the vehicle damaged if this occurs. To help...
Windshield Wipers      If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart. Although the circuit is protected from electrical overload, overload due to heavy snow or...
Traction Control Operation      The TCS is part of the StabiliTrak system. Traction control limits wheel spin by reducing engine power to the wheels (engine speed management) and by applying brakes to each individual wheel (brake-traction control) as...
Reading Lamps      For vehicles with reading lamps, they are located on the overhead console. To turn on the reading lamps, press the button located next to each lamp. To turn them off, press the button again. The vehicle may also have...
California Proposition 65 Warning      Most motor vehicles, including this one, contain and/or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Engine exhaust, many parts and systems, many fluids, and...
Fuses and Circuit Breakers      If the vehicle is a hybrid, see the hybrid supplement for more information. The wiring circuits in the vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links. This...
Special Application Services      • Allison Transmission™ Vehicles Only: Replace external transmission filter at first engine oil change only. • Vehicles with Dual Wheels: Check dual wheel nut torque at 160 km/100 mi, 1 600 km/ 1,000 mi and 9 700 km/6,000...
General Information      This maintenance section applies to vehicles with a gasoline engine. For diesel engine vehicles, see the maintenance schedule section in the Duramax Diesel Supplement. Your vehicle is an important investment. This section...
Air Vents      Use the air outlets located in the center and on the side of the instrument panel to direct the airflow. Use the thumbwheels near the air outlets to open or close off the airflow. Operation Tips • Clear away any ice,...
Using this Manual      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.
Canadian Vehicle Owners      Propriétaires Canadiens A French language copy of this manual can be obtained from your dealer or from: On peut obtenir un exemplaire de ce guide en français auprès du concessionnaire ou à...