light GMC SIERRA 2008 Get To Know Guide

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)
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E85 is not yet available at all gas sta
tions. E85 holds less energy per gallonthan gasoline, so drivers will experiencelower miles per gallon and cruisingrange when running on E85.
See Section 5 of your Owner Manual.
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Note: If your vehicle does not have the
yellow gas cap, do not use E85.
The Oil Life System calculates engine oil
life based on vehicle use and displays
CHANGE ENGINE OIL SOON on theDriver Information Center (DIC) when it’s
necessary to change your engine oil and
filter. The Oil Life System should bereset to 100% only following an oilchange.
To reset the Oil Life System:
1.Turn on the ignition.
2. Press the (Vehicle Information)
button until the DIC displays OILLIFE
REMAINING.
3.Press and hold the (Set/Reset)
button until 100% is displayed.
4. Turn off the ignition.
See Section 5 of your Owner Manual.
Resetting the Engine Oil Life
System
OWNER INFORMATION
Sierra Accessories
A variety of GM accessories, such as
running boards, ashtray and lighter
package, roof rack rails, and bed extenders, have been designed exclusivelyfor your Sierra to enhance its style and
functionality.
Accessories also are available for use
with the cargo management system,including an overhead rack, sliding
metal tool box, sliding metal bed divider,and sliding metal side storage boxes.
Visit www.gmc.com, or see your GMC
dealer for information about the avail
ability and installation of select Sierraaccessories.
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