
Highway Hypnosis
Is there actually such a condition as highway hypnosis?
Or is it just plain falling asleep at the wheel? Call it
highway hypnosis, lack of awareness, or whatever.
There is something about an easy stretch of road with
the same scenery, along with the hum of the tires on
the road, the drone of the engine, and the rush of
the wind against the vehicle that can make you sleepy.
Do not let it happen to you! If it does, your vehicle
can leave the road in less than a second, and you could
crash and be injured.
What can you do about highway hypnosis? First, be
aware that it can happen.
Then here are some tips:
Make sure your vehicle is well ventilated, with a
comfortably cool interior.
Keep your eyes moving. Scan the road ahead
and to the sides. Check your mirrors and your
instruments frequently.
If you get sleepy, pull off the road into a rest,
service, or parking area and take a nap, get some
exercise, or both. For safety, treat drowsiness
on the highway as an emergency.
Hill and Mountain Roads
Driving on steep hills or mountains is different from
driving in at or rolling terrain.
4-39

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.
And always keep in mind that the vehicle you are
driving is now a good deal longer and not nearly as
responsive as your vehicle is by itself.
Before you start, check all trailer hitch parts and
attachments, safety chains, electrical connector, lamps,
tires and mirror adjustment. If the trailer has electric
brakes, start your vehicle and trailer moving and then
apply the trailer brake controller by hand to be sure
the brakes are working. This lets you check your
electrical connection at the same time.
During your trip, check occasionally to be sure that the
load is secure, and that the lamps and any trailer
brakes are still working.
Following Distance
Stay at least twice as far behind the vehicle ahead as
you would when driving your vehicle without a trailer.
This can help you avoid situations that require
heavy braking and sudden turns.
Passing
You’ll need more passing distance up ahead when
you’re towing a trailer. And, because you’re a good deal
longer, you’ll need to go much farther beyond the
passed vehicle before you can return to your lane.
Backing Up
Hold the bottom of the steering wheel with one hand.
Then, to move the trailer to the left, just move that hand
to the left. To move the trailer to the right, move your
hand to the right. Always back up slowly and, if possible,
have someone guide you.
Making Turns
Notice:Making very sharp turns while trailering
could cause the trailer to come in contact with the
vehicle. Your vehicle could be damaged. Avoid
making very sharp turns while trailering.
When you’re turning with a trailer, make wider turns
than normal. Do this so your trailer won’t strike
soft shoulders, curbs, road signs, trees or other objects.
Avoid jerky or sudden maneuvers. Signal well in
advance.
4-63

Fuses Usage
HTR A/C Climate Control System
LCKPower Door Lock Relay
(Lock Function)
HVAC 1Inside Rearview Mirror,
Climate Control System
LT DRDriver’s Door Harness
Connection
CRUISE Cruise Control
UNLCKPower Door Lock Relay
(Unlock Function)
RR FOG LP Not Used
BRAKE Brake Switch
DRIVER UNLCKPower Door Lock Relay
(Driver’s Door Unlock
Function)
IGN 0Brake Transmission Shift
Interlock, Powertrain Control
Module, Transmission
TBC IGN 0 Truck Body Controller
VEH CHMSLVehicle and Trailer High
Mounted Stoplamp
LT TRLR ST/TRN Left Turn Signal/Stop Trailer
LT TRNLeft Turn Signals and
SidemarkersFuses Usage
VEH STOPVehicle Stoplamps, Brake
Module, Electronic Throttle
Control Module
RT TRLR ST/TRN Right Turn Signal/Stop Trailer
RT TRNRight Turn Signals and
Sidemarkers
BODY Harness Connector
DDM Driver Door Module
AUX PWR 2, M/GATEInstrument Panel Outlets,
Rear Cargo Area Power
Outlets
LCKSRear Doors and Liftgate
Power Lock Relay Feed
ECC TPMLiftgate, Tire Pressure
Monitoring System
TBC 2C Truck Body Controller
HAZRD Flasher Module
CB LT DRSLeft Rear Power Window
Circuit Breaker and Driver
Door Module
TBC 2B Truck Body Controller
TBC 2A Truck Body Controller
5-109

Light (cont.)
Security.....................................................3-47
Tow/Haul Mode ...........................................3-48
Traction Off................................................3-41
Lighting
Entry/Exit...................................................3-19
Loading Your Vehicle.......................................4-47
Lockout Protection..........................................2-10
Locks
Delayed Locking........................................... 2-9
Door ........................................................... 2-8
Lockout Protection.......................................2-10
Power Door .................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-10
Loss of Control...............................................4-17
Low Fuel Warning Light...................................3-49
Luggage Carrier..............................................2-43
Lumbar
Power Controls............................................. 1-4
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month................................6-10
At Least Once a Year..................................6-10
Introduction.................................................. 6-2Maintenance Schedule (cont.)
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-17
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-15
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-13
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-3
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-44
Memory Seat.................................................2-47
Message
DIC Warnings and Messages........................3-54
Mirrors
Automatic Dimming Rearview with Compass....2-32
Automatic Dimming Rearview with OnStar
®
and Compass..........................................2-28
Automatic Dimming Rearview with OnStar®,
Compass and Temperature Display.............2-29
Outside Automatic Dimming Mirror with Curb
View Assist.............................................2-36
Outside Convex Mirror.................................2-35
Outside Heated Mirrors................................2-35
Outside Power Mirrors..................................2-34
MyGMLink.com................................................ 7-3
8

N
Navigation/Radio System, see Navigation
Manual......................................................3-86
New Vehicle Break-In......................................2-16
Normal Maintenance Replacement Parts............6-15
O
Odometer......................................................3-34
Odometer, Trip...............................................3-34
Off-Road Driving.............................................4-18
Off-Road Recovery..........................................4-15
Oil
Engine.......................................................5-11
Pressure Gage............................................3-46
Oil, Engine Oil Life System..............................5-14
Older Children, Restraints................................1-49
Online Owner Center........................................ 7-3
OnStar
®System, see OnStar®Manual...............2-36
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-29
Outlet(s), Accessory Power...............................3-22
Outside
Automatic Dimming Mirror with Curb View
Assist.....................................................2-36
Convex Mirror.............................................2-35
Heated Mirrors............................................2-35
Power Mirrors.............................................2-34Overheated Engine Protection Operating Mode . . . 5-26
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Paint, Damage..............................................5-103
Park Aid........................................................3-20
Park (P)
Shifting Into................................................2-24
Shifting Out of............................................2-25
Parking
Assist........................................................3-20
Brake........................................................2-23
Over Things That Burn.................................2-26
Passenger Airbag Status Indicator.....................3-36
Passenger Sensing System..............................1-84
Passing.........................................................4-15
Passlock
®......................................................2-16
Power
Accessory Outlet(s)......................................3-22
Door Locks.................................................. 2-9
Electrical System.......................................5-107
Lumbar Controls........................................... 1-4
Retained Accessory (RAP)............................2-17
Seat............................................................ 1-3
Steering Fluid.............................................5-32
Windows....................................................2-13
Programmable Automatic Door Locks.................2-10
9

Q
Questions and Answers About Safety Belts.........1-33
R
Radios..........................................................3-69
Care of Your Cassette Tape Player...............3-104
Care of Your CD and DVD Player................3-105
Care of Your CDs and DVDs .......................3-105
CD Changer...............................................3-99
Navigation/Radio System, see Navigation
Manual...................................................3-86
Radio with Cassette and CD.........................3-71
Rear Seat Audio..........................................3-97
Setting the Time..........................................3-70
Theft-Deterrent..........................................3-102
Understanding Reception............................3-103
Reading Lamps..............................................3-19
Rear Axle......................................................5-44
Rear Climate Control System............................3-30
Rear Door Security Locks................................2-10
Rear Heated Seats.........................................1-11
Rear Outside Passenger Positions,
Safety Belts................................................1-42
Rear Safety Belt Comfort Guides......................1-46
Rear Seat Armrest..........................................2-44
Rear Seat Audio (RSA)....................................3-97Rear Seat Entertainment System.......................3-86
Rear Seat Operation......................................... 1-9
Rear Windshield Washer/Wiper.........................3-11
Rearview Mirror, Automatic Dimming with
Compass....................................................2-32
Rearview Mirror, Automatic Dimming with
OnStar®and Compass.................................2-28
Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature Display . . . 2-29
Reclining Seatbacks.......................................... 1-6
Recommended Fluids and Lubricants.................6-13
Recovery Hooks.............................................4-46
Recreational Vehicle Towing.............................4-54
Remote Keyless Entry System............................ 2-4
Remote Keyless Entry System, Operation............ 2-5
Removing the Flat Tire and Installing the
Spare Tire..................................................5-83
Removing the Spare Tire and Tools...................5-80
Replacement Bulbs.........................................5-56
Reporting Safety Defects
Canadian Government..................................7-14
General Motors...........................................7-15
United States Government............................7-14
Restraint System Check
Checking the Restraint Systems....................1-89
Replacing Restraint System Parts
After a Crash..........................................1-90
Retained Accessory Power (RAP)......................2-17
Right Front Passenger Position, Safety Belts......1-42
10