These are some examples of symbols you may find on your vehicle:
If a locked door is opened without the key or the remote
keyless entry transmitter, the alarm will go off. The
headlamps and parking lamps will flash for two minutes,
and the horn will sound for 30 seconds, then will turn
off to save the battery power.
Remember, the theft-deterrent system won’t activate if
you lock the doors with a key or use the manual
door lock. It activates only if you use a power door lock
switch with the door open, or with the remote keyless
entry transmitter. You should also remember that
you can start your vehicle with the correct ignition key if
the alarm has been set off.
Here’s how to avoid setting off the alarm by accident:
If you don’t want to activate the theft-deterrent
system, the vehicle should be locked with the door
the doors are closed.
Always unlock a door with a key, or use the remote
keyless entry transmitter. Unlocking a door any
other way will set off the alarm.
If you set off the alarm by accident, unlock any door with
the key. You can also turn off the alarm by pressing
unlock on the remote keyless entry transmitter. The alarm
won’t stop if you try to unlock a door any other way.
Testing the Alarm
The alarm can be tested by following these steps:
1. From inside the vehicle, lower the driver’s window
and open the driver’s door.
2. Activate the system by locking the doors with the
power door lock switch while the door is open, or
with the remote keyless entry transmitter.
3. Get out of the vehicle, close the door and wait for
the security light to go out.
4. Then reach in through the window, unlock the door
with the manual door lock and open the door. This
should set off the alarm.
When the alarm is set the power door unlock switch is
If the alarm does not sound when it should but the
headlamps flash, check to see if the horn works. The
horn fuse may be blown. To replace the fuse, see
and Circuit Breakers on page 5-99
If the alarm does not sound or the headlamps do not
flash, the vehicle should be serviced by your dealer.
Your vehicle is equipped with the
is a passive theft-deterrent system that
enables fuel if the ignition lock cylinder is turned with a
valid key. If a correct key is not used or the ignition
lock cylinder is tampered with, the fuel system is
disabled and the vehicle will not start.
During normal operation, the security light will turn off
approximately five seconds after the key is turned
If the engine stalls and the security light flashes, wait
about 10 minutes until the light stops flashing before
trying to restart the engine. Remember to release
the key from START as soon as the engine starts.
If the engine does not start after three tries, the vehicle
If the engine is running and the security light comes on,
you will be able to restart the engine if you turn the engine
off. However, your Passlock
system is not working
properly and must be serviced by your dealer. Your
vehicle is not protected by Passlock
at this time. You
may also want to check the fuse. See
Fuses and Circuit
Breakers on page 5-99
. See your dealer for service.
In an emergency, call the GM Roadside Assistance
Roadside Assistance Program on page 7-6
Starting and Operating Your
New Vehicle Break-In
Your vehicle does not need an elaborate
“break-in.” But it will perform better in the long run
if you follow these guidelines:
Keep your speed at 55 mph (88 km/h) or less for
the first 500 miles (805 km).
Do not drive at any one speed — fast or
slow — for the first 500 miles (805 km).
Do not make full-throttle starts.
Avoid making hard stops for the first 200 miles
(322 km) or so. During this time your new brake
linings are not yet broken in. Hard stops with new
linings can mean premature wear and earlier
replacement. Follow this breaking-in guideline
every time you get new brake linings.
Do not tow a trailer during break-in. See
Trailer on page 4-50
for more information.
If a bulb is burned out, replace it to help avoid an
accident. If the arrows don’t go on at all when you signal
a turn, check the fuse. See
Fuses and Circuit Breakers
on page 5-99
and check for burned-out bulbs.
If you have a trailer towing option with added wiring for
the trailer lamps, a different turn signal flasher is
used. With this flasher installed, the signal indicator will
flash even if a turn signal bulb is burned out. Check
the front and rear turn signal lamps regularly to make
sure they are working.
Turn Signal On Chime
If your turn signal is left on for more than 3/4 of a mile
(1.2 km), a chime will sound at each flash of the
turn signal. To turn off the chime, move the turn signal
lever to the off position.
Headlamp High/Low-Beam Changer
To change the headlamps from low to high beam, push
the lever toward the instrument panel. To return to
low-beam headlamps, pull the multifunction lever toward
you. Then release it.
When the high beams are
on, this indicator light on
the instrument panel
cluster will also be on.
This feature lets you use your high-beam headlamps to
signal a driver in front of you that you want to pass.
It works even if your headlamps are in the automatic
To use it, pull the turn signal lever toward you, then
If your headlamps are in the automatic position or on
low beam, your high-beam headlamps will turn on.
They’ll stay on as long as you hold the lever toward you.
The high-beam indicator on the instrument panel
cluster will come on. Release the lever to return to
Accessory Power Outlets
Your vehicle may have accessory power outlets. With
the accessory power outlets, you can plug in auxiliary
electrical equipment such as a cellular telephone or
The first outlet is located to the right of the cigarette
lighter on the instrument panel. The second outlet
is located on the rear of the center console.
Remove the cover from the outlet to use the outlet. Be
sure to put the cover back on when not using the
accessory power outlet.
Certain electrical accessories may not be compatible
with the accessory power outlet and could result
in blown vehicle or adaptor fuses. If you experience a
problem, see your dealer for additional information
on the accessory power outlets.
Adding any electrical equipment to your
vehicle may damage it or keep other components
from working as they should. The repairs would not
be covered by your warranty. Check with your
dealer before adding electrical equipment.
When adding electrical equipment, be sure to follow the
proper installation instructions included with the
Improper use of the power outlet can cause
damage not covered by your warranty. Do not
hang any type of accessory or accessory bracket
from the plug because the power outlets are
designed for accessory power plugs only.
Ashtrays and Cigarette Lighter
Your vehicle may have this feature. The ashtray is
removable and fits into the front cupholder.
If you put papers or other flammable items
in the ashtray, hot cigarettes or other smoking
materials could ignite them and possibly damage
your vehicle. Never put flammable items in the
To remove the ashtray, pull the covered bin out of the
To use the lighter, press it in all the way, and let go.
When it’s ready, it will pop back out by itself.
Holding a cigarette lighter in while it is
heating will not allow the lighter to back away from
the heating element when it is hot. Damage from
overheating may occur to the lighter or heating
element, or a fuse could be blown. Do not hold a
cigarette lighter in while it is heating.
I. Remote Negative (-) Terminal Marked “GND
Jump Starting on page 5-41
J. Brake Master Cylinder. See
Brakes on page 5-37
K. Battery. See
Battery on page 5-40
L. Engine Compartment Fuse Block. See “Engine
Compartment Fuse Block” under
Fuses and Circuit
Breakers on page 5-99
Checking Engine Oil
It is a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop. See
Engine Compartment Overview on page 5-12
the location of the engine oil dipstick.
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don’t, the oil
dipstick might not show the actual level.
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.
Passenger’s Side High-Beam
Passenger’s Side Low-Beam
Driver’s Side High-Beam Headlamp
Driver’s Side Low-Beam Headlamp
Rear Window Washer, Headlamp
Active Transfer Case
Powertrain Control Module B
Trailer Electric Brake
Electronic Throttle Control
Instrument Panel Cluster, Driver
Automatic Shift Lock Control System
Powertrain Control Module 1
Truck Body Controller
Anti-Lock Brakes (ABS)
Passenger’s Side Trailer Turn
Driver’s Side Trailer Turn
Electric Adjustable Pedals
Blank or Headlamp Wash
Rear Window Washer
Headlamp Driver Module
Electric Adjustable Pedal
Instrument Panel Battery
Rear Underseat Fuse Block
The rear underseat fuse block is located under the rear
seat on the driver’s side of the vehicle.
Right Door Control Module
Left Door Control Module
Endgate Module 2
Truck Body Controller 3
Rear Fog Lamps
Truck Body Controller 2
Driver Door Module
Passenger Door Module
Rear Climate Controls
Left Rear Parking Lamps
Vehicle Center High-Mounted Stop
Right Rear Parking Lamps
Liftgate Module/Driver Seat Module
Truck Body Controller Accessory
Truck Body Controller 5
Heat Ventilation Air Conditioning B
Front Parking Lamps
Left Turn Signal
Heat Ventilation Air Conditioning 1
Truck Body Controller 4
Right Turn Signal
Heat Ventilation Air Conditioning
Rear Fog Lamps
Auxiliary Power 1
Truck Body Controller Ignition
Truck Body Controller Run