
Trailer Brakes
If your trailer weighs more than 1,500 lbs (680 kg) loaded,
then it needs its own brakes — and they must be
adequate. Be sure to read and follow the instructions for
the trailer brakes so you’ll be able to install, adjust and
maintain them properly.
Since your vehicle is equipped with StabiliTrak
®, your
trailer brakes cannot tap into the vehicle’s hydraulic brake
system.
Driving with a Trailer
{CAUTION:
If you have a rear-most window open and you
pull a trailer with your vehicle, carbon
monoxide (CO) could come into your vehicle.
You can not see or smell CO. It can cause
CAUTION: (Continued)
CAUTION: (Continued)
unconsciousness or death. SeeEngine
Exhaust on page 2-36. To maximize your safety
when towing a trailer:
Have your exhaust system inspected for
leaks and make necessary repairs before
starting on your trip.
Keep the rear-most windows closed.
If exhaust does come into your vehicle
through a window in the rear or another
opening, drive with your front, main
heating or cooling system on and with the
fan on any speed. This will bring fresh,
outside air into your vehicle. Do not use
the climate control setting for maximum air
because it only recirculates the air inside
your vehicle. SeeDual Climate Control
System on page 3-21orDual Automatic
Climate Control System on page 3-24.
Towing a trailer requires a certain amount of experience.
Before setting out for the open road, you’ll want to get
to know your rig. Acquaint yourself with the feel of
handling and braking with the added weight of the trailer.
4-55

Uniform Tire Quality Grading
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration (NHTSA), which
grades tires by treadwear, traction, and
temperature performance. This applies only to
vehicles sold in the United States. The grades are
molded on the sidewalls of most passenger car
tires. The Uniform Tire Quality Grading (UTQG)
system does not apply to deep tread, winter-type
snow tires, space-saver, or temporary use spare
tires, tires with nominal rim diameters of
10 to 12 inches (25 to 30 cm), or to some
limited-production tires.While the tires available on General Motors
passenger cars and light trucks may vary with
respect to these grades, they must also conform to
federal safety requirements and additional General
Motors Tire Performance Criteria (TPC) standards.
Treadwear
The treadwear grade is a comparative rating based
on the wear rate of the tire when tested under
controlled conditions on a speci ed government
test course. For example, a tire graded 150 would
wear one and a half (1.5) times as well on the
government course as a tire graded 100. The
relative performance of tires depends upon the
actual conditions of their use, however, and may
depart signi cantly from the norm due to variations
in driving habits, service practices, and differences
in road characteristics and climate.
5-78

Fuses Usage
01 Passenger Door Control Module
02 Driver Door Control Module
03 Liftgate Module 2
04 Truck Body Controller 3
05 Rear Fog Lamps
06 Blank
07 Truck Body Controller 2
08 Power Seats
09 Rear Wiper
10 Driver Door Module
11 Ampli er
12 Passenger Door Module
13 Rear Climate Controls
14 Driver Side Rear Parking Lamps
15 BlankFuses Usage
16Vehicle Center High-Mounted
Stoplamp (CHMSL)
17Passenger Side Rear Parking
Lamps
18 Locks
19Liftgate Module/Driver Seat
Module
20 Blank
21 Lock
23 Blank
24 Unlock
25 Blank
26 Blank
27OnStar
®Overhead Battery,
OnStar®System
28 Sunroof
5-119

Child Restraints (cont.)
Securing a Child Restraint in the
Center Rear Seat Position.........................1-48
Securing a Child Restraint in the
Right Front Seat Position..........................1-48
Where to Put the Restraint...........................1-38
Chime Level Adjustment.................................3-107
Cigarette Lighter.............................................3-21
Cleaning
Aluminum Wheels......................................5-106
Exterior Lamps/Lenses................................5-104
Fabric/Carpet............................................5-101
Finish Care...............................................5-104
Instrument Panel, Vinyl, and Other
Plastic Surfaces.....................................5-103
Interior.....................................................5-100
Leather....................................................5-102
Tires........................................................5-106
Underbody Maintenance.............................5-107
Washing Your Vehicle.................................5-104
Weatherstrips............................................5-103
Windshield, Backglass, and Wiper Blades......5-105
Climate Control System
Dual ..........................................................3-21
Dual Automatic............................................3-24
Outlet Adjustment........................................3-28
Rear ..........................................................3-28Climate Control System (cont.)
Clock, Setting.................................................3-66
Collision Damage Repair..................................7-11
Compass.......................................2-38, 2-40, 2-42
Competitive Driving.........................................4-13
Content Theft-Deterrent....................................2-15
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-57
Coolant
Engine Temperature Gage............................3-40
Heater, Engine............................................2-23
Cooling System..............................................5-32
Cruise Control................................................3-10
Cruise Control Light........................................3-46
Customer Assistance Information
Courtesy Transportation................................7-10
Customer Assistance for Text
Telephone (TTY) Users............................... 7-5
Customer Assistance Offices........................... 7-5
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-6
Reporting Safety Defects to General Motors.......7-15
Reporting Safety Defects to the
Canadian Government..............................7-15
Reporting Safety Defects to the
United States Government.........................7-14
Roadside Assistance Program......................... 7-7
Service Publications Ordering Information........7-15
3

D
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-7
Diesel
Running Out of Fuel....................................2-36
Disc, MP3......................................................3-83
Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-17
Dome Lamps .................................................3-17
Door
Delayed Locking........................................... 2-7
Locks.......................................................... 2-6
Power Door Locks......................................... 2-7
Programmable Automatic Door Locks............... 2-8
Rear Door Security Locks.............................2-10
Driver Information Center (DIC).........................3-49
DIC Operation and Displays..........................3-50
DIC Vehicle Customization............................3-58
DIC Warnings and Messages........................3-53
Driving
At Night.....................................................4-26
Before a Long Trip......................................4-27
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-28
Hill and Mountain Roads..............................4-28
In Rain and on Wet Roads...........................4-26
Off-Road ....................................................4-14Driving (cont.)
Recovery Hooks..........................................4-34
Rocking Your Vehicle to Get it Out.................4-34
Winter........................................................4-29
Dual Automatic Climate Control System.............3-24
Dual Climate Control System............................3-21
DVD
Rear Seat Entertainment System...................3-89
E
EDR .............................................................7-17
Electrical System
Add-On Equipment.....................................5-109
Engine Compartment Fuse Block.................5-111
Fuses and Circuit Breakers.........................5-110
Headlamps...............................................5-110
Power Windows and Other Power Options....5-110
Rear Underseat Fuse Block.........................5-118
Windshield Wiper Fuses.............................5-110
Electronic Immobilizer
PASS-Key
®III .............................................2-17
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-17
Electronically Controlled Air Suspension System....4-47
Engine
Air Cleaner/Filter.........................................5-24
Change Engine Oil Light...............................3-45
Check and Service Engine Soon Light............3-41
4