Page 81 of 430

Adding Equipment to Your
Airbag-Equipped Vehicle
Q:Is there anything I might add to the front
of the vehicle that could keep the airbags
from working properly?
A:Yes. If you add things that change your
vehicle’s frame, bumper system, height,
front end or side sheet metal, they may keep
the airbag system from working properly.
Also, the airbag system may not work properly
if you relocate any of the airbag sensors.
If you have any questions about this,
you should contact Customer Assistance
before you modify your vehicle. The phone
numbers and addresses for Customer
Assistance are in Step Two of theCustomer
Satisfaction Procedure on page 404.
Q:Because I have a disability, I have to get
my vehicle modi ed. How can I nd out
whether this will affect my airbag system?
A:Changing or moving any parts of the
front seats, safety belts, the airbag sensing
and diagnostic module, steering wheel,
the instrument panel, or airbag wiring can
affect the operation of the airbag system.
If you have questions, call Customer
Assistance. The phone numbers and
addresses for Customer Assistance are
in Step Two of the Customer Satisfaction
Procedure in this manual. SeeCustomer
Satisfaction Procedure on page 404.
81
Page 82 of 430

Restraint System Check
Checking the Restraint Systems
Now and then, make sure the safety belt reminder
light and all your belts, buckles, latch plates,
retractors and anchorages are working properly.
Look for any other loose or damaged safety
belt system parts. If you see anything that might
keep a safety belt system from doing its job, have
it repaired. SeeCare of Safety Belts on page 334
for more information.
Torn or frayed safety belts may not protect you in
a crash. They can rip apart under impact forces.
If a belt is torn or frayed, get a new one right away.Also look for any opened or broken airbag covers,
and have them repaired or replaced. The airbag
system does not need regular maintenance.
Notice:If you damage the covering for the
driver’s or the right front passenger’s airbag,
the airbag may not work properly. You may
have to replace the airbag module in the
steering wheel or both the airbag module
and the instrument panel for the right front
passenger’s airbag. Do not open or break the
airbag coverings.
82
Page 83 of 430

Replacing Restraint System Parts
After a Crash
{CAUTION:
A crash can damage the restraint systems
in your vehicle. A damaged restraint
system may not properly protect the
person using it, resulting in serious
injury or even death in a crash. To help
make sure your restraint systems are
working properly after a crash, have
them inspected and any necessary
replacements made as soon as possible.If you have had a crash, do you need new belts?
After a very minor collision, nothing may be
necessary. But if the belts were stretched, as they
would be if worn during a more severe crash,
then you need new parts.
If belts are cut or damaged, replace them.
Collision damage also may mean you will need
to have safety belt or seat parts repaired or
replaced. New parts and repairs may be necessary
even if the belt was not being used at the time
of the collision.
If an airbag inflates, you will need to replace
airbag system parts. See the part on the airbag
system earlier in this section.
83
Page 84 of 430
Page 85 of 430

Keys.............................................................. 86
Remote Keyless Entry (RKE) System.......... 87
Remote Keyless Entry (RKE)
System Operation.................................... 88
Doors and Locks.......................................... 91
Door Locks................................................. 91
Power Door Locks....................................... 92
Windows....................................................... 93
Manual Windows......................................... 93
Power Windows.......................................... 94
Sliding Rear Window................................... 94
Sun Visors.................................................. 95
Starting and Operating Your Vehicle........... 95
New Vehicle Break-In.................................. 95
Ignition Positions......................................... 96
Engine Starter Over-Crank Protection.......... 97
Starting the Gasoline Engine....................... 97
Starting the Diesel Engine......................... 100
Engine Alarm and Automatic Shutdown..... 104
High Idle System....................................... 106
Exhaust Restrictor (Engine Warm-Up)........ 108
Engine Checks Before Operating............... 109
Engine Coolant Heater.............................. 111
Diesel Engine Exhaust Brake.................... 112Two-Speed Rear Axle Electric
Shift Control........................................... 113
Air Shift Control (Automatic
Transmission)......................................... 114
Automatic Transmission Operation............. 115
Manual Transmission Operation................. 116
Power Take-Off (PTO)............................... 118
Four-Wheel Drive...................................... 119
Parking...................................................... 125
Parking Brake (With Hydraulic Brakes)...... 125
Parking Brake (with Air Brakes)................. 126
Parking Brake Burnish Procedure.............. 128
Air Suspension.......................................... 129
Parking Over Things That Burn................. 130
Engine Exhaust......................................... 131
Running the Engine While Parked............. 132
Mirrors......................................................... 133
Manual Rearview Mirror............................. 133
Outside Manual Mirrors............................. 133
Outside Power Mirrors............................... 133
Outside Convex Mirrors............................. 134
Outside Heated Mirrors............................. 134
Storage Areas............................................. 135
Center Console Storage Area.................... 135
Section 2 Features and Controls
85
Page 86 of 430
Keys
{CAUTION:
Leaving children in a vehicle with the
ignition key is dangerous for many
reasons. They could operate the power
windows or other controls or even make
the vehicle move. The children or others
could be badly injured or even killed.
Do not leave the keys in a vehicle with
children.
86
Page 87 of 430

Your vehicle has
one double-sided key
for the ignition and
all door locks.
If you ever lose your key, your dealer will be able
to assist you with obtaining a new one.
Notice:If you ever lock your keys in your
vehicle, you may have to damage the vehicle
to get in. Be sure you have spare keys.
If you ever do get locked out of your vehicle, call
GM Roadside Assistance Center. SeeRoadside
Assistance Program on page 408.Remote Keyless Entry (RKE)
System
If the vehicle has the Remote Keyless Entry (RKE)
system, it operates on a radio frequency subject
to Federal Communications Commission (FCC)
Rules and with Industry Canada.
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
1. This device may not cause interference.
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
1. This device may not cause interference.
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Changes or modifications to this system by other
than an authorized service facility could void
authorization to use this equipment.
87
Page 88 of 430

At times you may notice a decrease in range. This
is normal for any RKE system. If the transmitter
does not work or if you have to stand closer
to your vehicle for the transmitter to work, try this:
•Check the distance. You may be too far
from your vehicle. You may need to stand
closer during rainy or snowy weather.
•Check the location. Other vehicles or objects
may be blocking the signal. Take a few steps
to the left or right, hold the transmitter
higher, and try again.
•Check to determine if battery replacement is
necessary. See “Battery Replacement”
underRemote Keyless Entry (RKE) System
Operation on page 88.
•If you are still having trouble, see your dealer
or a qualified technician for service.
Remote Keyless Entry (RKE)
System Operation
If your vehicle has this feature, you can lock and
unlock your doors from about 3 feet (1 m) up
to 30 feet (9 m) away using the remote keyless
entry transmitter supplied with your vehicle.
To unlock the
driver’s door,
press the UNLOCK
button once.
If you press the button again within five seconds,
all of the doors will unlock. When the UNLOCK
button is pressed, the interior dome lamps
are turned on for about 40 seconds or until the
ignition switch is activated. Press the LOCK button
to lock all doors.
88