2007 CHEVROLET TRAIL BLAZER service
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Seats and Restraint Systems
....................... 7
Front Seats
.............................................. 9
Rear Seats
............................................. 18
Safety Belts
............................................ 20
Child Restraints
...................................... 41
Airbag System
........................................ 69
Restraint System Check
......................... 88
Features and Controls
................................ 91
Keys
....................................................... 93
Doors and Locks
.................................... 98
Windows
............................................... 105
Theft-Deterrent Systems
....................... 108
Starting and Operating Your Vehicle
....... 111
Mirrors
.................................................. 132
OnStar
®System
................................... 145
Universal Home Remote System
.......... 149
Storage Areas
...................................... 161
Sunroof
................................................ 166Instrument Panel
....................................... 167
Instrument Panel Overview
................... 170
Climate Controls
................................... 187
Warning Lights, Gages,
and Indicators
................................... 198
Driver Information Center (DIC)
............ 220
Audio System(s)
................................... 238
Driving Your Vehicle
................................. 305
Your Driving, the Road, and
Your Vehicle
..................................... 306
Towing
................................................. 362
Service and Appearance Care
.................. 383
Service
................................................. 386
Fuel
...................................................... 388
Checking Things Under the Hood
......... 394
All-Wheel Drive
..................................... 438
Rear Axle
............................................. 438
2007 Chevrolet TrailBlazer Owner ManualM
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Page 79 of 574
Your vehicle has a feature that may automatically
unlock the doors, turn the interior lamps on, and
ash the hazard warning ashers when the airbags
in ate. You can lock the doors again, turn the
interior lamps off, and turn off the hazard warning
ashers by using the controls for those features.
In many crashes severe enough to in ate the
airbag, windshields are broken by vehicle
deformation. Additional windshield breakage may
also occur from the right front passenger airbag.
Airbags are designed to in ate only once. After
an airbag in ates, you will need some new
parts for your airbag system. If you do not get
them, the airbag system will not be there to help
protect you in another crash. A new system will
include airbag modules and possibly other
parts. The service manual for your vehicle
covers the need to replace other parts.
Your vehicle has a crash sensing and
diagnostic module which records information
after a crash. SeeVehicle Data Recording and
Privacy on page 555andEvent Data
Recorders on page 556.
Let only quali ed technicians work on the
airbag system. Improper service can mean
that an airbag system will not work properly.
See your dealer/retailer for service.
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Page 85 of 574
{CAUTION:
If the airbag readiness light in the
instrument panel cluster ever comes on
and stays on, it means that something
may be wrong with the airbag system.
If this ever happens, have the vehicle
serviced promptly, because an adult-size
person sitting in the right front
passenger’s seat may not have the
protection of the airbag(s). SeeAirbag
Readiness Light on page 202for more on
this, including important safety
information.Aftermarket equipment, such as seat covers, can
affect how well the passenger sensing system
operates. You may want to consider not using seat
covers or other aftermarket equipment if your
vehicle has the passenger sensing system. See
Adding Equipment to Your Airbag-Equipped
Vehicle on page 87for more information about
modi cations that can affect how the system
operates.
{CAUTION:
Stowing of articles under the passenger’s
seat or between the passenger’s seat
cushion and seatback may interfere with
the proper operation of the passenger
sensing system.
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Page 86 of 574
Servicing Your Airbag-Equipped
Vehicle
Airbags affect how your vehicle should be
serviced. There are parts of the airbag system in
several places around your vehicle. You do
not want the system to in ate while someone is
working on your vehicle. Your dealer and the
service manual have information about servicing
your vehicle and the airbag system. To purchase a
service manual, seeService Publications
Ordering Information on page 554.
{CAUTION:
For up to 10 seconds, after the ignition is
turned off and the battery is disconnected,
an airbag can still in ate during improper
service. You can be injured if you are
close to an airbag when it in ates. Avoid
yellow connectors. They are probably part
of the airbag system. Be sure to follow
proper service procedures, and make sure
the person performing work for you is
quali ed to do so.
The airbag system does not need regular
maintenance.
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Page 95 of 574
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 modi cations to this system by other
than an authorized service facility could void
authorization to use this equipment.
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 96.
If you are still having trouble, see your
dealer/retailer or a quali ed technician
for service.
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Page 110 of 574
When the alarm is set the power door unlock
switch will not work.
If the alarm does not sound when it should but the
headlamps ash, check to see if the horn works.
The horn fuse may be blown. To replace the fuse,
seeFuses and Circuit Breakers on page 503.
If the alarm does not sound or the headlamps do
not ash, the vehicle should be serviced by
your dealer.
Passlock®
Your vehicle has the Passlock®theft-deterrent
system.
Passlock
®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 has been tampered with, the
fuel system is disabled and the vehicle will not start.
During normal operation, the security light will
turn off about ve seconds after the key is turned
to RUN.If the engine stalls and the security light ashes,
wait about 10 minutes until the light stops
ashing 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 needs service.
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. SeeFuses and Circuit Breakers on
page 503. See your dealer for service.
In an emergency, call the GM Roadside
Assistance Center. SeeRoadside Assistance
Program on page 544.
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Page 112 of 574
Ignition Positions
Use the key to turn the ignition switch to four
different positions.
A (LOCK):This position locks the ignition and
transmission. It is a theft-deterrent feature. You will
only be able to remove the key when the ignition
is turned to LOCK.Notice:If your key seems stuck in LOCK and
you cannot turn it, be sure you are using
the correct key; if so, is it all the way in? Turn
the key only with your hand. Using a tool to
force it could break the key or the ignition
switch. If none of these works, then your
vehicle needs service.
B (ACCESSORY):This position lets you use
things like the radio and the windshield wipers
when the engine is off.
Lengthy operation of features such as the radio in
the accessory ignition position may drain the
battery and prevent your vehicle from starting.
Do not operate your vehicle in the accessory
ignition position for a long period of time.
C (RUN):This is the position for driving.
The battery could be drained if you leave the key
in the ACCESSORY or RUN position with the
engine off. You may not be able to start your
vehicle if the battery is allowed to drain for
an extended period of time.
D (START):This position starts the engine.
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Page 123 of 574
{CAUTION:
Shifting the transfer case to NEUTRAL can
cause your vehicle to roll even if the
transmission is in PARK (P). You or
someone else could be seriously injured.
Be sure to set the parking brake before
placing the transfer case in NEUTRAL.
SeeParking Brake on page 126.
NEUTRAL:Shift the vehicle’s transfer case to
NEUTRAL only when towing your vehicle.
SeeRecreational Vehicle Towing on page 362for
more information.
An indicator light in the knob will show you which
position the transfer case is in. The indicator lights
will come on brie y when you turn on the ignition
and one will stay on. If the lights do not come on,
you should take your vehicle to your dealer for
service. An indicator light will ash while shiftingthe transfer case. It will stay on when the shift is
complete. If for some reason the transfer case
cannot make a requested shift, it will return to the
last chosen setting.
If the service Four-Wheel Drive Warning Light on
the instrument panel cluster stays on, you
should take your vehicle to your dealer for service.
SeeService Four-Wheel Drive Warning Light on
page 218for further information.
Shifting Into Four-Wheel High or Automatic
Four-Wheel Drive
Turn the knob to Four-Wheel High or Automatic
Four-Wheel Drive. This can be done at any speed
unless you are shifting out of Four-Wheel Low.
The indicator light will ash while shifting.
It will remain on when the shift is complete.
Shifting Into Two-Wheel High
Turn the knob to Two-Wheel High. This can be
done at any speed unless you are shifting
out of Four-Wheel Low.
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