
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 rearview 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.
309

Trailer Brakes
Does your trailer have its own brakes? Be sure to
read and follow the instructions for the trailer
brakes so you’ll be able to install, adjust
and maintain them properly.
If your vehicle has anti-lock brakes, do not try
to tap into your vehicle’s brake system. If you
do, both brake systems won’t work well, or
at all.
Even if your vehicle doesn’t have anti-lock
brakes, don’t tap into your vehicle’s brake
system if the trailer’s brake system will
use more than 0.02 cubic inch (0.3 cc) of uid
from your vehicle’s master cylinder. If it
does, both braking systems won’t work well.
You could even lose your brakes.
Will the trailer brake parts take 3,000 psi
(20 650 kPa) of pressure? If not, the
trailer brake system must not be used with
your vehicle.
If everything checks out this far, then make
the brake uid tap at the upper rear master
cylinder port. But don’t use copper tubing
for this. If you do, it will bend and break off.
Use steel brake tubing.
Driving with a Trailer
Towing a trailer requires a certain amount of
experience. Before setting out for the open road,
get to know the 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 is now a good deal longer and not nearly
as responsive as the vehicle is by itself.
Before starting, check the trailer hitch and platform
(and attachments), safety chains, electrical
connector, lamps, tires, and mirror adjustment. If
the trailer has electric brakes, start the vehicle and
trailer moving and then apply the trailer brake
controller by hand to be sure the brakes are
working. This lets you check the 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 when driving the vehicle without a trailer.
This can prevent situations that require heavy
braking and sudden turns.
328

Fuse Usage
RAP Retained Accessory Power
SUN ROOF Sunroof
CRUISE SW Cruise Switch
PK LP Parking Lamps
RR DEFOG Rear Window Defogger
DR LK/TRUNK Door Lock/Trunk
ONSTAR/ALDL Onstar
®/Diagnostic Link
Fuse Usage
CANISTER Fuel Tank Solenoid Canister
PK LAMPS Parking Lamps
RADIO/AMP Radio Ampli er
RFA/MODRemote Function Activator
(Remote Keyless Entry)
DISPLAYSInstrument Panel Displays/Head-Up
Display (HUD), Driver Information
Center (DIC)
INT LIGHT Interior Lamps
HVAC Climate Controls
CHMSL/BKUPCenter High Mounted Stop
Lamp/Back-Up Lamps
PWR WDO Power Windows
SPRING
COIL 2Steering Wheel Control Switches
PWR SEAT Power Seat
TURN/HAZTurn Signals/Hazard
Warning Lamps
PWR MIRS Power Mirrors
HTD SEAT Heated Seat
To reinstall the end panel, position the lower
section with the edge of the instrument panel,
and press the sides of the panel until it snaps
into place.
461

M
Maintenance Schedule
Additional Required Services.................... 476
At Each Fuel Fill...................................... 479
At Least Once a Month............................ 480
At Least Once a Year.............................. 480
Introduction.............................................. 470
Maintenance Footnotes............................ 477
Maintenance Record................................ 487
Maintenance Requirements...................... 470
Normal Maintenance Replacement Parts.... 484
Owner Checks and Services.................... 479
Recommended Fluids and Lubricants....... 483
Scheduled Maintenance........................... 473
Using....................................................... 471
Your Vehicle and the Environment............ 471
Malfunction Indicator Light........................... 180
Manual Passenger Seat.................................. 8
Message
DIC Warnings and Messages................... 200
Mirrors
Manual Rearview Mirror with OnStar
®...... 121
Outside Convex Mirror............................. 122
Outside Power Mirrors............................. 121
MP3 ............................................................ 269
MyGMLink.com............................................ 495
N
New Vehicle Break-In.................................. 105
Normal Maintenance Replacement Parts..... 484
O
Odometer.................................................... 170
Off-Road Recovery...................................... 299
Oil
Engine..................................................... 350
Pressure Light.......................................... 184
Supercharger, Engine............................... 355
Oil, Engine Oil Life System......................... 353
Older Children, Restraints............................. 39
Online Owner Center................................... 495
OnStar
®System, see OnStar®Manual........ 122
Other Warning Devices................................ 134
Outlet Adjustment........................................ 166
Outlet(s), Accessory Power.......................... 156
Outside
Convex Mirror.......................................... 122
Power Mirrors.......................................... 121
Overhead Console Reading Lamps............. 149
Overheated Engine Protection
Operating Mode....................................... 366
Owner Checks and Services....................... 479
Owners, Canadian.......................................... 3
521

P
Paint, Damage............................................ 456
Park (P)
Shifting Into............................................. 116
Shifting Out of......................................... 117
Parking
Brake....................................................... 115
Over Things That Burn............................ 118
Passenger Airbag Status Indicator............... 173
Passenger Compartment Air Filter............... 166
Passenger Sensing System........................... 74
Passing....................................................... 299
PASS-Key
®III ............................................. 102
PASS-Key®III Operation............................. 103
Power
Accessory Outlet(s).................................. 156
Door Locks................................................ 94
Electrical System..................................... 459
Lumbar Controls.......................................... 9
Retained Accessory (RAP)....................... 106
Seat............................................................ 8
Steering Fluid.......................................... 376
Windows.................................................... 99
Pressure Cap.............................................. 364
Pretensioners, Safety Belt............................. 38
Programmable Automatic Door Locks............ 95
Q
Questions and Answers About Safety Belts ... 21
R
Radios........................................................ 233
Care of Your CD Player........................... 279
Care of Your CDs.................................... 279
Radio with CD................................235, 245
Radio with Six-Disc CD............................ 255
Setting the Time...................................... 234
Theft-Deterrent......................................... 277
Understanding Reception ......................... 278
Rear Assist Handle Reading Lamps............ 149
Rear Door Security Locks............................. 95
Rear Safety Belt Comfort Guides.................. 35
Rear Seat Passengers, Safety Belts.............. 32
Rearview Mirror with OnStar
®...................... 121
Reclining Seatbacks...................................... 10
Recommended Fluids and Lubricants.......... 483
Recreational Vehicle Towing........................ 322
Remote Keyless Entry (RKE) System............ 86
Remote Keyless Entry (RKE) System,
Operation................................................... 87
Removing the Flat Tire and Installing the
Spare Tire................................................ 438
522