CHEVROLET TRAIL BLAZER 2007 1.G Owners Manual

How to Check Lubricant
To get an accurate reading, the vehicle should be
on a level surface.
If the level is below the bottom of the ller plug
hole, located on the front axle, you may need
to add some lubricant.When the differential is cold, add enough lubricant
to raise the level to 1/2 inch (12 mm) below the
ller plug hole.
When the differential is at operating temperature
(warm), add enough lubricant to raise the level
to the bottom of the ller plug hole.
What to Use
To determine what kind of lubricant to use, see
Recommended Fluids and Lubricants on page 529.
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Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 444.
For any bulb changing procedure not listed in this
section, contact your dealer.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas
inside and can burst if you drop or
scratch the bulb. You or others could be
injured. Be sure to read and follow the
instructions on the bulb package.
Taillamps and Turn Signal Lamps
1. Open the liftgate. SeeLiftgate/Liftglass
on page 104for more information.
2. Remove the
two screws from the
taillamp assembly.
3. Pull the taillamp assembly away from the
vehicle.
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4. Unclip the wiring harness (A) and remove the
three retaining screws (B) from the socket
plate.
5. Remove the socket plate.6. Holding the socket, pull the bulb to release it
from the socket.
7. Push the new bulb into the socket until it
clicks.
8. Reinstall the socket and tighten the
three screws.
9. Reconnect the wiring harness.
10. Reinstall the taillamp assembly by lining up
the locator pins with the retainers in the
vehicle’s body.
11. Reinstall the two screws and tighten.
12. Close the liftgate.
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License Plate Lamp
To replace one of these bulbs, do the following:
1. Remove the two screws holding the
license plate lamp lens.
2. Pull the lens away from the lamp assembly.
3. Pull the old bulb straight out from the
bulb socket.
4. Install the new bulb.
5. Replace the lamp assembly lens and tighten
the screws.
Replacement Bulbs
Exterior Lamp Bulb Number
License Plate Lamp W5W
Taillamps 3157
For replacement bulbs not listed here, contact
your dealer/retailer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for
wear or cracking. SeeScheduled Maintenance
on page 519.
Allowing the wiper blade arm to touch the
windshield when no wiper blade is installed
could damage the windshield. Any damage that
occurs would not be covered by your warranty.
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Do not allow the wiper blade arm to touch the
windshield.
1. To remove the old wiper blades, lift the wiper
arm until it locks into a vertical position.
A. Blade Assembly
B. Arm Assembly
C. Locking TabD. Blade Pivot
E. Hook Slot
F. Arm Hook2. Press down on the blade assembly pivot
locking tab. Pull down on the blade assembly
to release it from the wiper arm hook.
3. Remove the insert from the blade assembly.
The insert has two notches at one end that
are locked by the bottom claws of the
blade assembly. At the notched end, pull the
insert from the blade assembly.
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4. To install the new wiper insert, slide the
insert (D), notched end last, into the end
with two blade claws (A). Slide the insert all
the way through the blade claws at the
opposite end (B). The plastic caps (C) will be
forced off as the insert is fully inserted.
5. Be sure that the notches are locked by the
bottom claws. Make sure that all other claws
are properly locked on both sides of the
insert slots.A. Claw in Notch
B. Correct Installation
C. Incorrect Installation
6. Put the blade assembly pivot in the wiper arm
hook. Pull up until the pivot locking tab locks
in the hook slot.
7. Carefully lower the wiper arm and blade
assembly onto the windshield.
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Backglass Wiper Blade Replacement
1. Lift the wiper blade assembly up and out of
the park rest position.
2. Pull the wiper blade assembly away from the
backglass. The backglass wiper blade will not
lock in a vertical position, so care should
be used when pulling it away from the vehicle.
3. Rotate the wiper blade assembly, and pull it
off of the wiper arm. Hold the wiper arm in
position and push the blade away from
the wiper arm.4. Replace the wiper blade.
5. Return the wiper blade assembly to the park
rest position.
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Tires
Your new vehicle comes with high-quality tires
made by a leading tire manufacturer. If you ever
have questions about your tire warranty and where
to obtain service, see your GM Warranty booklet
for details. For additional information refer to
the tire manufacturer’s booklet included with
your vehicle.
{CAUTION:
Poorly maintained and improperly
used tires are dangerous.
Overloading your tires can cause
overheating as a result of too much
friction. You could have an air-out and
a serious accident. SeeLoading Your
Vehicle on page 356.
CAUTION: (Continued)
CAUTION: (Continued)

Underinated tires pose the same
danger as overloaded tires. The
resulting accident could cause serious
injury. Check all tires frequently to
maintain the recommended pressure.
Tire pressure should be checked when
your tires are cold. SeeInflation - Tire
Pressure on page 457.
Overinated tires are more likely to
be cut, punctured, or broken by a
sudden impact — such as when you
hit a pothole. Keep tires at the
recommended pressure.
Worn, old tires can cause accidents.
If your tread is badly worn, or if your
tires have been damaged, replace them.
SeeHigh-Speed Operation on page 458
for ination pressure adjustment for high
speed driving.
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Low-Prole Performance Tire
(Trailblazer SS)
If your vehicle has P255/50R20 size tires, they are
classied as low-prole performance tires.
These tires are designed for very responsive
driving on wet or dry pavement. You may
also notice more road noise with low-prole
performance tires and that they tend to
wear faster.
Notice:If your vehicle has low-prole tires,
they are more susceptible to damage from road
hazards or curb impact than standard prole
tires. Tire and/or wheel assembly damage
can occur when coming into contact with road
hazards like, potholes, or sharp edged objects,
or when sliding into a curb. Your GM warranty
does not cover this type of damage. Keep
tires set to the correct ination pressure and,
when possible avoid contact with curbs,
potholes, and other road hazards.
Winter Tires
For cold weather driving conditions you may prefer
to get tires designed for snow or ice, if your
vehicle has P255/50R20 size tires. See your
dealer for details regarding winter tire availability
and proper tire selection. Also, seeBuying New
Tires on page 466.
If you choose to use winter tires:
Use tires of the same brand and tread type
on all four wheel positions.
Use only radial ply tires of the same size,
load range, and speed rating as your
original equipment tires.
Winter tires with the same speed rating as your
original equipment tires may not be available
for H, V, W, Y and ZR speed rated tires. If you
choose winter tires with a lower speed rating,
never exceed the tire’s maximum speed capability.
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Tire Sidewall Labeling
Useful information about a tire is molded into the
sidewall. The following illustrations are examples
of a typical P-Metric and a LT-Metric tire sidewall.(A) Tire Size:The tire size code is a combination
of letters and numbers used to dene a particular
tire’s width, height, aspect ratio, construction
type, and service description. See the “Tire Size”
illustration later in this section for more detail.
(B) TPC Spec (Tire Performance Criteria
Specication):Original equipment tires designed
to GM’s specic tire performance criteria have
a TPC specication code molded onto the sidewall.
GM’s TPC specications meet or exceed all
federal safety guidelines.
(C) DOT (Department of Transportation):
The Department of Transportation (DOT) code
indicates that the tire is in compliance with
the U.S. Department of Transportation Motor
Vehicle Safety Standards.
(D) Tire Identication Number (TIN):The letters
and numbers following DOT code are the Tire
Identication Number (TIN). The TIN shows
the manufacturer and plant code, tire size, and
date the tire was manufactured. The TIN is molded
onto both sides of the tire, although only one
side may have the date of manufacture.
Passenger (P-Metric) Tire
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