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Temperature – A, B, C
The temperature grades are A (the highest),
B, and C, representing the tire’s resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions on a
speci ed indoor laboratory test wheel. Sustained
high temperature can cause the material of the tire
to degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure.
The grade C corresponds to a level of performance
which all passenger car tires must meet under
the Federal Motor Vehicle Safety Standard
No. 109. Grades B and A represent higher levels
of performance on the laboratory test wheel
than the minimum required by law.
Warning:The temperature grade for this tire is
established for a tire that is properly in ated
and not overloaded. Excessive speed,
underin ation, or excessive loading, either
separately or in combination, can cause heat
buildup and possible tire failure.
Wheel Alignment and Tire Balance
The tires and wheels on your vehicle were aligned
and balanced carefully at the factory to give you
the longest tire life and best overall performance.
Adjustments to wheel alignment and tire
balancing will not be necessary on a regular basis.
However, if you notice unusual tire wear or your
vehicle pulling to one side or the other, the
alignment may need to be checked. If you notice
your vehicle vibrating when driving on a smooth
road, your tires and wheels may need to be
rebalanced. See your dealer for proper diagnosis.
Wheel Replacement
Replace any wheel that is bent, cracked, or badly
rusted or corroded. If wheel nuts keep coming
loose, the wheel, wheel bolts and wheel nuts
should be replaced. If the wheel leaks air, replace
it (except some aluminum wheels, which can
sometimes be repaired). See your dealer if any of
these conditions exist.
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Page 302 of 396

Tire Chains
{CAUTION:
Do not use tire chains. There is not
enough clearance. Tire chains used on a
vehicle without the proper amount of
clearance can cause damage to the brakes,
suspension, or other vehicle parts. The
area damaged by the tire chains could
cause you to lose control of your vehicle
and you or others may be injured in a
crash. Use another type of traction device
only if its manufacturer recommends
it for use on your vehicle and tire size
combination and road conditions. Follow
that manufacturer’s instructions. To help
avoid damage to your vehicle, drive slowly,
re-adjust or remove the device if it is
contacting your vehicle, and do not spin
your wheels. If you do nd traction devices
that will t, install them on the rear tires.
If a Tire Goes Flat
Your vehicle has a tire in ator kit. There is no
spare tire, no tire changing equipment, and
no place to store a tire.
It is unusual for a tire to blow out while you are
driving, especially if you maintain your tires
properly. SeeTires on page 284. If air goes out
of a tire, it is much more likely to leak out slowly.
But, if you should ever have a blow out, here are
a few tips about what to expect and what to do:
If a front tire fails, the at tire will create a drag that
pulls the vehicle toward that side. Take your
foot off the accelerator pedal and grip the steering
wheel rmly. Steer to maintain lane position,
and then gently brake to a stop well out of the
traffic lane.
A rear blow out, particularly on a curve, acts much
like a skid and may require the same correction
you would use in a skid. In any rear blow out,
remove your foot from the accelerator pedal. Get
the vehicle under control by steering the way
you want the vehicle to go. It may be very bumpy
and noisy, but you can still steer. Gently brake
to a stop, well off the road if possible.
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Page 323 of 396

Underbody Maintenance
Chemicals used for ice and snow removal and
dust control can collect on the underbody. If these
are not removed, corrosion and rust can develop
on the underbody parts such as fuel lines,
frame, oor pan, and exhaust system even though
they have corrosion protection.
At least every spring, ush these materials from
the underbody with plain water. Clean any
areas where mud and debris can collect. Dirt
packed in close areas of the frame should
be loosened before being ushed. Your dealer
or an underbody car washing system can do
this for you.
Chemical Paint Spotting
Some weather and atmospheric conditions can
create a chemical fallout. Airborne pollutants can
fall upon and attack painted surfaces on the
vehicle. This damage can take two forms: blotchy,
ring-shaped discolorations, and small, irregular
dark spots etched into the paint surface.
Although no defect in the paint job causes
this, GM will repair, at no charge to the owner,
the surfaces of new vehicles damaged by
this fallout condition within 12 months or
12,000 miles (20 000 km) of purchase,
whichever occurs rst.
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Page 330 of 396
Fuses Usage
9 Empty
10 Trunk
11 Trunk
12 Empty
13 Fuel Pump
14 Rear Defogger Relay
15 Air Conditioning Clutch Relay
16 Empty
17 Empty
18 Trunk Release Relay
19 Fuel Pump Relay
20 Empty
21 Mirrors
22 Air Conditioning
23 Empty
24Cooling Fan 2 Relay (LE5);
Empty (LNF)
25 Fuse Puller
26 Powertrain RelayFuses Usage
27 Empty
28Back-up Lamps Relay
(Automatic Transmission);
Empty (Manual Transmission)
29 Data Link Connector
30 Outlet
31Back-up Lamps
(Automatic Transmission);
Empty (Manual Transmission)
32 Empty (LE5); Vacuum Pump (LNF)
33 Emissions
34 Crank Relay
35 Empty
36 Empty
37 Power Seat
38Empty (LE5); Vacuum Pump
Relay (LNF)
39 Empty
40 Cooling Fan 1 (LE5); Empty (LNF)
41Empty (LE5); Turbo, Cam
Phaser (LNF)
330
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