Lumbar Adjustment
Manual Lumbar
If available, move the handle forward or rearward to increase or decrease lumbar support.
Power Lumbar
If available, press and hold the front or rear of control to increase or decrease lumbar support. Release the control when the seatback reaches the desired level of lumbar support.
See also:
Fog Lamps
To replace one of these bulbs:
1. Locate the fog lamp assembly under the front facia.
2. Disconnect the bulb socket from the electrical connector, turn, and pull out
the bulb assembly.
3. Remov ...
Powertrain details
The GMC Sierra All Terrain HD concept is propelled by the new, production
6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission
powertrain combination offered in the 2011 ...
Interior Care
To prevent dirt particle abrasions, regularly clean the vehicle's interior.
Immediately remove any soils. Note that newspapers or dark garments that can transfer color to home furnishings can also pe ...