2008 GMC SIERRA fuel cap

Congratulations on your purchase of a GMC Sierra. Please read this information about your vehicle’s features and
your Owner Manual to ensure an outstanding ownership experience. Note that your vehicle may not include all thefeatures described in this booklet. Keep this booklet with your Owner Manual for easy reference.
DRIVER INFORMATION
Instrument Panels . . . . . . . . . . . . .2
Instrument Panel Cluster . . . . . . .4Vehicle Symbols . . . . . . . . . . . . . . .5
Voltmeter Operation . . . . . . . . . . . .5
Driver Information Center . . . . . .5
SAFETY& SECURITY
Remote Keyless Entry . . . . . . . . . .7
Content TheftDeterrent System . .7OnStar
® . . . . . . . . . . . . . . . . . . . . . .8
COMFORT
Power Seat Controls . . . . . . . . . . .8
Heated Seats . . . . . . . . . . . . . . . . . .8
Memory Settings . . . . . . . . . . . . . .9
Adjustable Pedals . . . . . . . . . . . . .9
Automatic Climate Controls . . . . .9
ENTERTAINMENT
Audio System Features . . . . . . . .10MultipleDisc CD Player . . . . . . . .13
Touch Screen Navigation
Entertainment System . . . . . . . . .13XM
®Satellite Radio . . . . . . . . . . .13
Rear Seat Audio and DVD Rear
Seat Entertainment Systems . . .14
Audio Steering Wheel Controls .14
CONVENIENCE
Remote Vehicle Start . . . . . . . . . .15Cruise Control . . . . . . . . . . . . . . .16
Rainsense™ II Windshield
Wipers . . . . . . . . . . . . . . . . . . . . . .16
Heated Windshield Washer
Fluid . . . . . . . . . . . . . . . . . . . . . . . .17
Automatic Headlamp System
and Interior Lamps . . . . . . . . . . . .17
Sunroof . . . . . . . . . . . . . . . . . . . . .17
Power Sliding Rear Window . . . .18Ultrasonic Rear Parking Assist .18
Universal Home Remote . . . . . . .19Automatic Dimming Rearview
Mirror with OnStar
®, Compass
and Temperature Display . . . . . .19
Power Foldaway Mirrors . . . . . . .19TrailerTow Mirrors . . . . . . . . . . . .20
Folding the Rear Seat . . . . . . . . .20
Cargo Management System . . . .20
PERFORMANCE & MAINTENANCE
6Speed Automatic
Transmission Controls . . . . . . . .21
StabiliTrak
®– Stability Control
System . . . . . . . . . . . . . . . . . . . . .21
Tire Pressure Monitor . . . . . . . . .21
Integrated Trailer Brake Control
System . . . . . . . . . . . . . . . . . . . . .22
Tighten Gas Cap Message . . . . .22
FlexFuel (E85) – Yellow Gas Cap 22Resetting the Engine Oil Life
System . . . . . . . . . . . . . . . . . . . . .23
OWNER INFORMATION
Sierra Accessories . . . . . . . . . . . .23
Roadside Assistance . . . . . . . . . .24
My GMLink . . . . . . . . . . . . . . . . . .24
Sierra 2008 A 5/16/07 7:49 AM Page 1

apply the trailer brakes. ITBC system
information is displayed on the Driver
Information Center.
See Section 4 of your Owner Manual
Getting to Know Your Sierra22
vehicle has been sitting for at least three
hours or driven no more than one mile.
You can temporarily clear the DIC
message by acknowledging it with
your DIC controls. However, at the nextvehicle startup, the DIC message willreappear if the tire pressure has notbeen corrected.
During cooler conditions, the low tire
pressure warning light may appear whenthe vehicle is first started and then turn
off as you start to drive the vehicle. Thiscould be an early indicator that your tirepressures are getting low and need tobe inflated to the proper pressure.
See Section 5 of your Owner Manual.
Note:The Tire Pressure Monitor can
alert you about low tire pressure, but itdoesn’t replace normal monthly tiremaintenance.
Integrated Trailer Brake Control
System (if equipped)
The control
panel for theIntegratedTrailer Brake
Control (ITBC)system islocated on theinstrumentpanel to theleft of the steering wheel.
The control panel allows you to adjust
the amount of output available to theelectric trailer brakes and to manuallyIf the Tighten Gas Cap message is
displayed on the Driver InformationCenter (DIC), check that your fuel cap
is properly installed. If the cap is notsecurely fastened, turn it clockwise untila clicking sound is heard, indicating that
it is properly installed. The DIC messagewill turn off after a few driving trips with
the cap properly installed.
See Sections 3 and 5 of your Owner Manual.
Tighten Gas Cap Message
Note:If the brakes are manually
applied, the brake lights do not turn on.
If your vehicle has a yellow gas cap, it
was engineered as a FlexFuel vehiclecapable of running on gasoline or E85fuel. E85 is a blend of 85% ethanol and15% gasoline. E85 is a highoctane,renewable fuel made primarily from corn
(see livegreengoyellow.com).
Your FlexFuel vehicle automatically
detects the current fuel mixture in thefuel tank and adjusts engine settings
accordingly. You can fill up with gasolineor E85, regardless of which fuel isalready in the tank.
FlexFuel (E85) – Yellow Gas Cap
(if equipped)
Sierra 2008 A 5/16/07 7:50 AM Page 22