
Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and theENGINE POWER IS REDUCED message is displayed,an overheat protection mode which alternates firinggroups of cylinders helps prevent engine damage. Inthis mode, you will notice a loss in power and engineperformance. This operating mode allows the vehicle tobe driven to a safe place in an emergency. Drivingextended miles (km) and/or towing a trailer in theoverheat protection mode should be avoided.
Notice:After driving in the overheated engineprotection operating mode, to avoid engine damage,allow the engine to cool before attempting anyrepair. The engine oil will be severely degraded.Repair the cause of coolant loss, change the oil andreset the oil life system. SeeEngine Oilonpage 7!17.
Engine Fan Noise
The vehicle has electric cooling fans. You might hearthe fans spinning at low speed during most everydaydriving. The fans can turn off if no cooling is required.Under heavy vehicle loading, trailer towing, and/or highoutside temperatures, or if you are operating the airconditioning system, the fans can change to high speedand you might hear an increase in fan noise. This isnormal and indicates that the cooling system isfunctioning properly. The fans change to low speedwhen additional cooling is no longer required.
7-37

FusesUsage
1Right Trailer Stop/Turn Lamp
2Electronic Stability SuspensionControl, Automatic Level ControlExhaust
3Left Trailer Stop/Turn Lamp
4Engine Controls
5Engine Control Module, ThrottleControl
6Trailer Brake Controller
7Front Washer
8Oxygen Sensors
9Antilock Brakes System 2
10Trailer Back-up Lamps
11Driver Side Low-Beam Headlamp
12Engine Control Module (Battery)
13Fuel Injectors, Ignition Coils(Right Side)
14Transmission Control Module(Battery)
15Vehicle Back-up Lamps
16Passenger Side Low-Beam Headlamp
7-112

FusesUsage
17Air Conditioning Compressor
18Oxygen Sensors
19Transmission Controls (Ignition)
20Fuel Pump
21Fuel System Control Module
22Headlamp Washer
23Rear Windshield Washer
24Fuel Injectors, Ignition Coils(Left Side)
25Trailer Park Lamps
26Driver Side Park Lamps
27Passenger Side Park Lamps
28Fog Lamps
29Horn
30Passenger Side High-BeamHeadlamp
31Daytime Running Lamps (DRL)
32Driver Side High-Beam Headlamp
33Daytime Running Lamps 2
34Sunroof
FusesUsage
35Key Ignition System, Theft DeterrentSystem
36Windshield Wiper
37SEO B2 Upfitter Usage (Battery)
38Electric Adjustable Pedals
39Climate Controls (Battery)
40Airbag System (Ignition)
41Amplifier
42Audio System
43Miscellaneous (Ignition), CruiseControl
44Liftgate Release
45Airbag System (Battery)
46Instrument Panel Cluster
47Not Used
48Auxiliary Climate Control (Ignition)
49Center High-Mounted Stoplamp(CHMSL)
50Rear Defogger
51Heated Mirrors
7-113

FusesUsage
52SEO B1 Upfitter Usage (Battery)
53Cigarette Lighter, Auxiliary PowerOutlet
54Automatic Level Control CompressorRelay
55Climate Controls (Ignition)
56Engine Control Module, SecondaryFuel Pump (Ignition)
J-Case FusesUsage
57Cooling Fan 1
58Automatic Level Control Compressor
59Heavy Duty Antilock Braking System
60Cooling Fan 2
61Antilock Brake System 1
62Starter
63Stud 2 (Trailer Brakes)
64Left Bussed Electrical Center 1
65Electric Running Boards
66Heated Windshield Washer System
67Transfer Case
J-Case FusesUsage
68Stud 1 (Trailer Connector BatteryPower)
69Mid-Bussed Electrical Center 1
70Climate Control Blower
71Power Liftgate Module
72Left Bussed Electrical Center 2
RelaysUsage
FAN HICooling Fan High Speed
FAN LOCooling Fan Low Speed
FAN CNTRL Cooling Fan Control
HDLP LO/HID Low-Beam Headlamp
FOG LAMPFront Fog Lamps
A/C CMPRSR Air Conditioning Compressor
STRTRStarter
PWR/TRNPowertrain
FUEL PMPFuel Pump
PRK LAMPParking Lamps
REAR DEFOG Rear Defogger
RUN/CRANK Switched Power
7-114

First Engine Oil Change After Every
40 000 km/25,000 Miles
.Fuel system inspection for damage or leaks.
First Engine Oil Change After Every
80 000 km/50,000 Miles
.Engine air cleaner filter replacement. SeeEngineAir Cleaner/Filter on page 7!22.
.Automatic transmission fluid and filter change(severe service) for vehicles mainly driven in heavycity traffic in hot weather, in hilly or mountainousterrain, when frequently towing a trailer, or used fortaxi, police, or delivery service. SeeAutomaticTransmission Fluid on page 7!24.
.Four!wheel drive only: Transfer case fluid change(severe service) for vehicles mainly driven whenfrequently towing a trailer, or used for taxi, police,or delivery service. Check vent hose at transfercase for kinks and proper installation. Check to besure vent hose is unobstructed, clear, and free of
debris. During any maintenance, if a power washeris used to clean mud and dirt from the underbody,care should be taken to not directly spray thetransfer case output seals. High pressure watercan overcome the seals and contaminate thetransfer case fluid. Contaminated fluid willdecrease the life of the transfer case and shouldbe replaced.
.Evaporative control system inspection. Check allfuel and vapor lines and hoses for proper hook!up,routing, and condition. Check that the purge valve,if the vehicle has one, works properly. Replace asneeded.An Emission Control Service. The U.S.Environmental Protection Agency or the CaliforniaAir Resources Board has determined that thefailure to perform this maintenance item will notnullify the emission warranty or limit recall liabilityprior to the completion of the vehicle's useful life.We, however, urge that all recommendedmaintenance services be performed at theindicated intervals and the maintenance berecorded.
8-6

I
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
Infants and Young Children, Restraints . . . . . . . . . . . . 2-52
Inflation - Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-65
Instrument Panel
Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Instrument Panel Cluster . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28
Integrated Trailer Brake Control System (ITBC) . . . . 6-42
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2
J
Jump Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
K
Keyless Entry
Remote (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Keyless Entry System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
L
Labeling, Tire Sidewall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-60
Lamps
Back-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-55
Daytime Running (DRL) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Dome Lamp Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Lamps (cont.)
License Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-56
Malfunction Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
LATCH System for Child Restraints . . . . . . . . . . . . . . . . 2-59
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-55
Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41
Liftgate, Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Liftgate/Liftglass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Liftglass/Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-55
Lights
Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
Antilock Brake System (ABS) Warning . . . . . . . . . . . . 4-34
Brake System Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33
Charging System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
Exterior Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
High/Low Beam Changer . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Highbeam On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
Lights On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
i - 8

Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
Towing
Recreational Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38
Towing a Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-42
Trailer Recommendations . . . . . . . . . . . . . . . . . . . . . . . . 6-55
Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38
Traction
Magnetic Ride Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Road Sensing Suspension . . . . . . . . . . . . . . . . . . . . . . . . 6-9
StabiliTrak®System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Trailer
Towing Recommendations . . . . . . . . . . . . . . . . . . . . . . . . 6-55
Transmission
Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Transmission Operation, Automatic . . . . . . . . . . . . . . . . 3-32
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . 9-11
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . .4-5
Turn Signal/Multifunction Lever . . . . . . . . . . . . . . . . . . . . . .4-4
U
Ultrasonic Rear Parking Assist (URPA) . . . . . . . . . . . . 3-46
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . . 7-76
Universal Home Remote System . . . . . . . . . . . . . . . . . . 3-55
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55
V
Vehicle
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Running While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Vehicle Customization, DIC . . . . . . . . . . . . . . . . . . . . . . . . 4-57
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . 9-18
Vehicle Identification
Number (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-107
Service Parts Identification Label . . . . . . . . . . . . . . . .7-107
Vehicle Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-57
Ventilation Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Voice Recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-86
i - 15