2007 GMC SIERRA ECU

If the at tire is on the rear, position the jack
under the rear axle between the spring anchor
and the shock absorber bracket.
If you have added a snow plow to the front of
your vehicle, lower the snow plow fully
before raising the vehicle.
Make sure that the jack head is positioned so
that the rear axle is resting securely between
the grooves that are on the jack head.
{CAUTION:
Getting under a vehicle when it is jacked
up is dangerous. If the vehicle slips off
the jack you could be badly injured or
killed. Never get under a vehicle when it is
supported only by a jack.
{CAUTION:
Raising your vehicle with the jack
improperly positioned can damage the
vehicle and even make the vehicle fall. To
help avoid personal injury and vehicle
damage, be sure to t the jack lift head
into the proper location before raising the
vehicle.
Rear Position – All Models
585

5. If the spare tire does not lower, turn the wheel
wrench counterclockwise until approximately
6 inches (15 cm) of cable is exposed.
6. Stand the wheel blocks on their shortest ends,
with the backs facing each other.
7. Place the bottom
edge of the jack (A)
on the wheel
blocks (B),
separating them so
that the jack is
balanced securely.
8. Attach the jack handle, extension, and wheel
wrench to the jack and place it (with the
wheel blocks) under the vehicle toward the
front of the rear bumper.
590

4. Insert the hoist
end (F) through the
hole (G) in the
rear bumper and
onto the hoist shaft.
5. Raise the tire part way upward. Make sure the
retainer is seated in the wheel opening.
6. Raise the tire fully against the underside of
the vehicle by turning the wheel wrench
clockwise until you hear two clicks or feel it
skip twice. You cannot overtighten the cable.7. Make sure the tire is stored securely. Push,
pull (A), and then try to turn (B) the tire. If the
tire moves, use the wheel wrench to tighten
the cable.
8. Reinstall the spare tire lock, if the vehicle
has one.
594

At Each Fuel Fill
It is important to perform these underhood checks
at each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil (Gasoline Engine)
on page 500for further details.
Notice:It is important to check the engine oil
regularly and keep it at the proper level.
Failure to keep the engine oil at the proper
level can cause damage to the engine not
covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary. See
Engine Coolant on page 513for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in
the windshield washer uid reservoir and add the
proper uid if necessary.
At Least Once a Month
Tire Ination Check
Visually inspect your vehicle’s tires and make sure
they are inated to the correct pressures. Do not
forget to check the spare tire. SeeInation - Tire
Pressure on page 559. Check to make sure the
spare tire is stored securely. SeeChanging a Flat
Tire on page 576.
Tire Wear Inspection
Tire rotation may be required for high mileage
highway drivers prior to the Engine Oil Life System
service notication. Check the tires for wear
and, if necessary, rotate the tires. SeeTire
Inspection and Rotation on page 565.
632

Roadside Assistance Program
In the U.S. call,1-800-GMC-8782
(1-800-462-8782).
In Canada, call1-800-268-6800.
Service is available 24 hours a day, 365 days
a year.
As the owner of a new GMC vehicle, you are
automatically enrolled in the GMC Roadside
Assistance program. This value-added service is
intended to provide you with peace of mind as you
drive in the city or travel the open road.
Who is Covered?
Roadside Assistance coverage is for the vehicle
operator, regardless of ownership. A person driving
this vehicle without the consent of the owner is
not eligible for coverage.The following services are provided in the U.S.
during the Bumper-to-Bumper warranty period and,
in Canada, during the Base Warranty coverage
period of the New Vehicle Limited Warranty, up to
a maximum coverage of $100.
Fuel Delivery:Delivery of enough fuel for the
customer to get to the nearest service station
(approximately $5 in the U.S. and 10 litres
in Canada). Service to provide diesel may be
restricted. For safety reasons, propane
and other alternative fuels will not be provided
through this service.
Lock-out Service:To ensure security, the
driver must present the vehicle registration
and personal ID before lock-out service
is provided. Lock-out service will be covered
at no charge if you are unable to gain
entry into your vehicle.
650

Trip Interruption Benets and Assistance:In
the event of a warranty related vehicle
disablement, while en route and over
250 kilometres from original point of departure,
you may qualify for trip interruption expense
assistance. This assistance covers reasonable
reimbursement of up to a maximum of $500 for
(A) meals (maximum of $50/day), (B) lodging
(maximum of $100/night) and (C) alternate
ground transportation (maximum of $40/day).
This benet is to assist you with some of the
unplanned expense you may incur while
waiting for your vehicle to be repaired.
Pre-authorization, original detailed receipts,
and a copy of the repair order are required.
Once authorization has been given, your
advisor will help you make any necessary
arrangements and explain how to claim for trip
interruption expense assistance.
Alternative Service:There may be times,
when Roadside Assistance cannot provide
timely assistance, your advisor may authorize
you to secure local emergency road service,
and you will be reimbursed up to $100 upon
submission of the original receipt to Roadside
Assistance.In many instances, mechanical failures are covered
under GMC’s Bumper-to-Bumper warranty.
However, when other services are utilized, our
Roadside Assistance Representatives will explain
any payment obligations you might incur.
For prompt and efficient assistance when calling,
please provide the following to the Roadside
Assistance Representative:
Your name, home address, and home
telephone number.
Telephone number of your location.
Location of the vehicle.
Model, year, color, and license plate number
of the vehicle.
Odometer reading, Vehicle Identication
Number (VIN) and delivery date of the vehicle.
Description of the problem.
While we hope you never have the occasion to
use our service, it is added security while traveling
for you and your family. Remember, we are
only a phone call away. U.S. customers call GMC
Roadside Assistance:1-800-462-8782, text
telephone (TTY) users, call1-888-889-2438.
Canadian customers call1-800-268-6800.
652

C
Calibration..........................................169, 173
California Fuel............................................. 489
California Proposition 65 Warning................ 487
Canadian Owners........................................... 3
Capacities and Specications...................... 616
Carbon Monoxide..............122, 167, 418, 445
Care of
Safety Belts............................................. 601
Your CD and DVD Player........................ 371
Your CDs and DVDs................................ 370
Cargo Lamp................................................ 227
Cargo Management System........................ 199
CD, MP3 ............................................339, 345
Center Console Storage Area...................... 197
Center Front Passenger Position,
Safety Belts........................................ 37, 38
Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp...................................... 545
Center Seat.................................................. 19
Chains, Tire................................................. 574
Charging System Light................................ 254
Check
Engine Light............................................ 260
Checking Things Under the Hood................ 496
Chemical Paint Spotting.............................. 605Child Restraints
Child Restraint Systems............................. 51
Infants and Young Children........................ 48
Lower Anchors and Tethers for Children..... 58
Older Children........................................... 45
Securing a Child Restraint in a Rear
Seat Position.......................................... 67
Securing a Child Restraint in the Center
Front Seat Position ................................. 69
Securing a Child Restraint in the Right
Front Seat Position.......................... 70, 76
Securing a Child Restraint in the Right
Front Seat Position (Crew Cab).............. 80
Where to Put the Restraint........................ 56
Cigarette Lighter.......................................... 233
Cleaning
Aluminum or Chrome-Plated Wheels........ 603
Exterior Lamps/Lenses............................. 602
Fabric/Carpet........................................... 599
Finish Care.............................................. 602
Inside of Your Vehicle.............................. 597
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 600
Leather.................................................... 600
Tires........................................................ 604
Underbody Maintenance........................... 605
Washing Your Vehicle.............................. 601
667

Door (cont.)
Rear Door Security Locks........................ 120
Rear Doors.............................................. 121
Driver
Position, Safety Belt................................... 28
Driver Information Center (DIC)................... 267
DIC Operation and Displays............268, 275
DIC Vehicle Customization....................... 289
DIC Warnings and Messages................... 279
Driving
At Night................................................... 407
City.......................................................... 412
Defensive................................................. 374
Drunken................................................... 375
Freeway................................................... 413
Hill and Mountain Roads.......................... 416
In Rain and on Wet Roads...................... 408
Off-Road.................................................. 390
Recovery Hooks....................................... 424
Rocking Your Vehicle to Get it Out.......... 423
Winter...................................................... 418
Dual Automatic Climate Control System....... 238
Dual Tire Operation..................................... 560
DVD
Rear Seat Entertainment System............. 355E
Electrical System
Add-On Equipment................................... 608
Center Instrument Panel Fuse Block........ 611
Fuses and Circuit Breakers...................... 608
Instrument Panel Fuse Block................... 609
Power Windows and Other Power
Options................................................. 608
Underhood Fuse Block............................. 612
Windshield Wiper Fuses........................... 608
Engine
Air Cleaner/Filter...................................... 505
Check and Service Engine Soon Light..... 260
Coolant.................................................... 513
Coolant Heater......................................... 136
Coolant Temperature Gage...................... 258
Drive Belt Routing.................................... 639
Engine Compartment Overview................ 498
Exhaust................................................... 167
Fan Noise................................................ 525
Oil ........................................................... 500
Oil Life System........................................ 503
Overheated Protection Operating Mode.... 519
Overheating............................................. 516
Starting.................................................... 134
Entry Lighting.............................................. 226
669