
An authorized GM dealer may be able to diagnose and
repair problems with the trailer. However, any diagnosis
and repair of the trailer is not covered under the vehicle
warranty. Please contact your trailer dealer for
assistance with trailer repairs and trailer warranty
information.
Driving with a Trailer
{WARNING:
When towing a trailer, exhaust gases may collect
at the rear of the vehicle and enter if the liftgate,
trunk/hatch, or rear-most window is open.
Engine exhaust contains carbon monoxide (CO)
which cannot be seen or smelled. It can cause
unconsciousness and even death.
To maximize safety when towing a trailer:
.Have the exhaust system inspected for leaks
and make necessary repairs before starting
a trip.
.Never drive with the liftgate, trunk/hatch,
or rear-most window open.(Continued)
WARNING: (Continued)
.Fully open the air outlets on or under the
instrument panel.
.Adjust the Climate Control system to a setting
that brings in only outside air and set the fan
speed to the highest setting. See Climate
Control System in the Index.
For more information about carbon monoxide, see
Engine Exhaust on page 3‑54.
Towing a trailer requires a certain amount of
experience. The combination you are driving is longer
and not as responsive as the vehicle itself. Get
acquainted with the handling and braking of the rig
before setting out for the open road.
Before starting, check all trailer hitch parts and
attachments, safety chains, electrical connectors,
lamps, tires and mirrors. If the trailer has electric
brakes, start the combination moving and then apply the
trailer brake controller by hand to be sure the
brakes work.
During the trip, check occasionally to be sure that the
load is secure and the lamps and any trailer brakes
still work.
5-72

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.
All Passenger Car Tires Must Conform to Federal
Safety Requirements In Addition To These
Grades.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
government test course. For example, a tire
graded 150 would wear one and a half (1½) 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 significantly from the norm due to
variations in driving habits, service practices and
differences in road characteristics and climate.
Traction–AA, A, B, C
The traction grades, from highest to lowest, are
AA, A, B, and C. Those grades represent the tire's
ability to stop on wet pavement as measured
under controlled conditions on specified
government test surfaces of asphalt and concrete.
A tire marked C may have poor traction
performance. Warning: The traction grade
assigned to this tire is based on straight-ahead
braking traction tests, and does not include
acceleration, cornering, hydroplaning, or peak
traction characteristics.
Temperature –A, B, C
The temperature grades are A (the highest), B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate heat
when tested under controlled conditions on a
specified indoor laboratory test wheel. Sustained
high temperature can cause the material of the
tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of
performance which all passenger car tires must
meet under the Federal Motor Safety Standard
No. 109. Grades B and A represent higher levels
of performance on the laboratory test wheel than
6-86

FusesUsage
9Passenger Door Module, Driver
Unlock
10 Power Door Lock 2 (Unlock Feature) 11 Power Door Lock 2 (Lock Feature)
12 Stoplamps, Center-High Mounted
Stoplamp
13 Rear Climate Controls
14 Power Mirror
15 Body Control Module (BCM)
16 Accessory Power Outlets
17 Interior Lamps
18 Power Door Lock 1 (Unlock Feature)
19 Rear Seat Entertainment
20 Ultrasonic Rear Parking Assist, Power
Liftgate
21 Power Door Lock 1 (Lock Feature)
Fuses Usage
22 Driver Information Center (DIC)
23 Rear Wiper
24 Cooled Seats
25Driver Seat Module, Remote Keyless
Entry System
26 Driver Power Door Lock (Unlock
Feature)
Circuit Breaker
Usage
LT DRDriver Side Power Window Circuit
Breaker
Harness
Connector Usage
LT DR Driver Door Harness Connection
BODY Harness Connector
BODY Harness Connector
6-120

FusesUsage
39 Climate Controls (Battery)
40 Airbag System (Ignition)
41 Amplifier
42 Audio System
43Miscellaneous (Ignition), Cruise
Control
44 Not Used
45 Airbag System (Battery)
46 Instrument Panel Cluster
47 Power Take-Off
48 Auxiliary Climate Control (Ignition)
49 Center High-Mounted Stoplamp
(CHMSL)
50 Rear Defogger
51 Heated Mirrors
Fuses Usage
52 SEO B1 Upfitter Usage (Battery)
53Cigarette Lighter, Auxiliary Power
Outlet
54 SEO Upfitter Usage
55 Climate Controls (Ignition)
56 Engine Control Module, Secondary
Fuel Pump (Ignition)
J-Case Fuses
Usage
57 Cooling Fan 1
58 Not Used
59 Heavy Duty Antilock Brake System
60 Cooling Fan 2
61 Antilock Brake System 1
62 Starter
6-124

J-Case FusesUsage
63 Stud 2 (Trailer Brakes)
64 Left Bussed Electrical Center 1
65 Not Used
66 Heated Windshield Washer System
67 Transfer Case
68Stud 1 (Trailer Connector Battery
Power) (Optional - 40A Fuse
Required)
69 Mid-Bussed Electrical Center 1
70 Climate Control Blower
71 Not Used
72 Left Bussed Electrical Center 2
Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
FAN CNTRL Cooling Fan Control
HDLP LO/HID Low-Beam Headlamp
FOG LAMP Front Fog Lamps
A/C CMPRSR Air Conditioning Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR DEFOG Rear Defogger
RUN/CRANK Switched Power
6-125

Cleaning (cont.)Instrument Panel, Vinyl, and Other Plastic
Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-112
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-110
Leather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-112
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-116
Underbody Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 6-116
Washing Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-113
Weatherstrips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-113
Windshield and Wiper Blades . . . . . . . . . . . . . . . . . . . . 6-114
Climate Control System . . . . . . . . . . . . . . . . . . . . . . 4-18, 4-21 Outlet Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Clock, Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-82
Collision Damage Repair . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60
Content Theft-Deterrent . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31
Engine Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 4-40
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . 8-10
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75 Customer Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-6
Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Text Telephone (TTY) Users . . . . . . . . . . . . . . . . . . . . . . . 8-6
Customer Information Service Publications Ordering Information . . . . . . . . 8-16
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . .8-2
D
Damage Repair, Collision . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Data Recorders, Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . . . 4-12
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
DIC Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60
Disc, MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-105, 4-112
Doing Your Own Service Work . . . . . . . . . . . . . . . . . . . . . . .6-5
Dome Lamp Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Door Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Programmable Automatic Door Locks . . . . . . . . . . . . 3-10
Rear Door Security Locks . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Rear Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
i - 4

Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . 4-49DIC Operation and Displays . . . . . . . . . . . . . . . . 4-49, 4-56
DIC Vehicle Customization . . . . . . . . . . . . . . . . . . . . . . . 4-73
DIC Warnings and Messages . . . . . . . . . . . . . . . . . . . . . 4-63
Driving At Night . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
Before a Long Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Highway Hypnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Hill and Mountain Roads . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
In Rain and on Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . 5-22
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Recovery Hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
Rocking Your Vehicle to Get it Out . . . . . . . . . . . . . . . . 5-28
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . 1-33
Dual Automatic Climate Control System . . . . . . . . . . . 4-22
Dual Tire Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-75
DVD Rear Seat Entertainment System . . . . . . . . . . . . . . . .4-132E
E85 Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
EDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . 6-117
Electrical SystemCenter Instrument Panel Fuse Block . . . . . . . . . . . . .6-121
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . 6-118
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . 6-119
Power Windows and Other Power Options . . . . . . 6-118
Underhood Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . .6-122
Windshield Wiper Fuses . . . . . . . . . . . . . . . . . . . . . . . . . 6-118
Electronic Immobilizer PASS-Key
®III+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Electronic Immobilizer Operation PASS-Key
®III+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Engine
Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
Check and Service Engine Soon Light . . . . . . . . . . . . 4-41
Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31
Coolant Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 4-40
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
i - 5