2003 CHEVROLET TRAIL BLAZER lock

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-6
Safety Belts
.............................................. 1-8
Child Restraints
.......................................1-28
Air Bag Systems
......................................1-49
Restraint System Check
............................1-59
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-8
Windows
.................................................2-14
Theft-Deterrent Systems
............................2-16
Starting and Operating Your Vehicle
...........2-18
Mirrors
....................................................2-34
OnStar
žSystem
......................................2-38
HomeLinkžTransmitter
.............................2-39
Storage Areas
.........................................2-43
Sunroof
..................................................2-50
Vehicle Personalization
.............................2-50
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-21
Warning Lights, Gages and Indicators
.........3-35
Driver Information Center (DIC)
..................3-51Audio System(s)
.......................................3-64
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-44
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under the Hood
...............5-10
Rear Axle
...............................................5-47
Four-Wheel Drive
.....................................5-48
Bulb Replacement
....................................5-50
Windshield Wiper Blade Replacement
.........5-51
Tires
......................................................5-54
Appearance Care
.....................................5-79
Vehicle Identi®cation
.................................5-87
Electrical System
......................................5-88
Capacities and Speci®cations
...................5-100
Normal Maintenance Replacement Parts
....5-102
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance Information
.................. 7-2
Reporting Safety Defects
............................ 7-8
Index................................................................ 1
2003 Chevrolet TrailBlazerM

Front Seats
Manual Seats
{CAUTION:
You can lose control of the vehicle if you try to
adjust a manual driver's seat while the vehicle
is moving. The sudden movement could startle
and confuse you, or make you push a pedal
when you don't want to. Adjust the driver's
seat only when the vehicle is not moving.
Pull up on the lever located under the front of the
manual seat to unlock it. Slide the seat to where you
want it and release the lever. Then try to move the
seat with your body to make sure the seat is locked
into place.
Power Seats
If you have this feature,
the power seat controls
are located on the
outboard side of the front
seat cushions. The
horizontal control adjusts
the seat cushion and
the vertical control adjusts
the seatback.
·Move the front of the seat control up or down to
adjust the front portion of the cushion.
·Move the rear of the seat control up or down to
adjust the rear portion of the cushion.
·Lift up or push down on the center of the seat
control to move the entire seat up or down.
·To move the seat forward or rearward, slide the
seat control forward or rearward.
·To recline the seatback, press the vertical control
rearward. To raise the seatback, press the vertical
control forward.
1-2

Manual Lumbar
Your vehicle may have this feature. This control is
located on the outboard side of the seat.
Turn the knob counterclockwise to increase lumbar
support and clockwise to decrease lumbar support.
Power Lumbar
Your vehicle may have this feature. The driver's and
passenger's seatback lumbar support can be adjusted
by moving a single control located on the outboard
side of the seat cushions. To increase or decrease
support, hold the control forward or rearward.
Keep in mind that as your seating position changes, as
it may during long trips, so should the position of
your lumbar support. Adjust the seat as needed.
Heated Seats
Your vehicle may have
heated front seats. The
buttons used to control this
feature are located on
the front door armrests.
The engine must be
running for the heated seat
feature to work.
To heat the entire seat, press the horizontal button with
the heated seat symbol. Press the button repeatedly
to cycle through the temperature settings of high,
medium, low and off. The indicator lights will glow to
designate the level of heat selected: three for high,
two for medium and one for low. The low setting warms
the seatback and cushion until the seat temperature
is near body temperature. The medium and high settings
heat the seatback and seat cushion to a slightly
higher temperature. You will be able to feel heat in
about two minutes.
1-3

{CAUTION:
Sitting in a reclined position when your vehicle
is in motion can be dangerous. Even if you
buckle up, your safety belts can't do their job
when you're reclined like this.
The shoulder belt can't do its job. In a crash,
you could go into it, receiving neck or other
injuries.
The lap belt can't do its job either. In a crash
the belt could go up over your abdomen. The
belt forces would be there, not at your pelvic
bones. This could cause serious internal
injuries.
For proper protection when the vehicle is in
motion, have the seatback upright. Then sit
well back in the seat and wear your safety belt
properly.
Head Restraints
Adjust your head restraint so that the top of the restraint
is closest to the top of your head. This position
reduces the chance of a neck injury in a crash.
The head restraints lock into place when raised. To
release the head restraint and lower it, press the
tab located on the top of the seatback.
1-5

Rear Seats
Rear Seat Operation
Your vehicle may have a folding rear seat which lets
you fold the seatbacks down for more cargo space.
Pull up on the loop located where the seat cushion
meets the seatback to fold the seat cushion up and out
of the way. This will allow the seatback to fold ¯at
and increase the cargo area.The rear seatback
levers are located on the
outboard side of the
rear seatbacks.
Pull the seatback toward you as you lift up on the lever.
The head restraint will automatically fold out of the
way when the seatback is folded down.
To raise the seatbacks, lift up the seatbacks and push
on them until they lock into the upright position.
Push and pull on the seatbacks to make sure that they
are latched securely. Then fold the bottom seat
cushion back into place.
1-6

To return the head restraint to the upright position,
reach behind the seat and pull the restraint up until it
locks into place. Push and pull on the head restraint to
make sure that it is latched securely.
Rear Seats (TrailBlazer EXT)
The second row seat is a 65/35 split seat which may be
folded and tumbled. Use this feature for gaining
access to the third row seats.To fold and tumble the second row seat(s), do the
following:
1. Push the head restraints fully down.
2. Fold the seatback ¯at on the seat by pulling up on
the front part of the fold and tumble lever. The lever
is located on the outboard side of the seat
(indicated as 1 on the handle side cover).
3. Release the rear set of seat hooks from the ¯oor
pins by pulling up on the rear part of the lever
(indicated as 2 on the handle side cover). This
enables the seat to be tumbled forward.
Returning the Seats to an Upright Position
To return the seat(s) to the upright position, do the
following:
1. Pull the bottom of the seat release lever towards
the front of the vehicle to release the seat. The
lever is located at the bottom of the seat cushion on
the outboard side of each second row seat.
2. Return the seat to the ¯oor pins by rotating the seat
down to reengage the seat hooks.
3. Try to raise the seat to check that it is locked down.
4. Pull the seat back up to return it to the upright
position.
1-7

How to Wear Safety Belts Properly
This part is only for people of adult size.
Be aware that there are special things to know about
safety belts and children. And there are different
rules for smaller children and babies. If a child will be
riding in your vehicle, see
Older Children on page 1-28orInfants and Young Children on page 1-31. Follow
those rules for everyone's protection.
First, you'll want to know which restraint systems your
vehicle has.
We'll start with the driver position.
Driver Position
This part describes the driver's restraint system.
Lap-Shoulder Belt
The driver has a lap-shoulder belt. Here's how to wear it
properly.
1. Close and lock the door.
2. Adjust the seat so you can sit up straight. To see
how, see ªSeatsº in the Index.3. Pick up the latch plate and pull the belt across you.
Don't let it get twisted.
4. Push the latch plate into the buckle until it clicks.
Pull up on the latch plate to make sure it is secure.
If the belt isn't long enough, see
Safety Belt
Extender on page 1-27.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if you ever had to.
1-14

5. To make the lap part tight, pull up on the
shoulder belt.The lap part of the belt should be worn low and snug on
the hips, just touching the thighs. In a crash, this
applies force to the strong pelvic bones. And you'd be
less likely to slide under the lap belt. If you slid under it,
the belt would apply force at your abdomen. This
could cause serious or even fatal injuries. The shoulder
belt should go over the shoulder and across the
chest. These parts of the body are best able to take belt
restraining forces.
The safety belt locks if there's a sudden stop or crash,
or if you pull the belt very quickly out of the retractor.
1-15