6-47
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 specified 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 inflated and
not overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance.
Scheduled wheel alignment and wheel balancing are
not needed. However, if you notice unusual tire wear
or your vehicle pulling one way or the other, the
alignment may need to be reset. If you notice your
vehicle vibrating when driving on a smooth road,
your wheels may need to be rebalanced.
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.
Your dealer will know the kind of wheel you need.
6-48
Each new wheel should have the same load-carrying
capacity, diameter, width, offset and be mounted the
same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM original
equipment parts. This way, you will be sure to have the
right wheel, wheel bolts and wheel nuts for your vehicle.
CAUTION:
Using the wrong replacement wheels, wheel bolts
or wheel nuts on your vehicle can be dangerous.
It could affect the braking and handling of your
vehicle, make your tires lose air and make you
lose control. You could have a collision in which
you or others could be injured. Always use
the correct wheel, wheel bolts and wheel nuts
for replacement.
NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance and tire or tire
chain clearance to the body and chassis.
See ªChanging a Flat Tireº in the Index for
more information.
Used Replacement Wheels
CAUTION:
Putting a used wheel on your vehicle is
dangerous. You can't know how it's been used or
how far it's been driven. It could fail suddenly
and cause an accident. If you have to replace a
wheel, use a new GM original equipment wheel.
6-49 Tire Chains
NOTICE:
If your vehicle has P235/55R16, P245/50ZR16
or P275/40ZR17 size tires, don't use tire chains.
They can damage your vehicle because there's
not enough clearance.
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, readjust or remove the
device if it's contacting your vehicle, and don't
spin your wheels.
NOTICE: (Continued)
NOTICE: (Continued)
If you do find traction devices that will fit, install
them on the rear tires.
If you have other tires, use tire chains only where
legal and only when you must. Use only SAE
Class ªSº type chains that are the proper size
for your tires. Install them on the rear tires and
tighten them as tightly as possible with the ends
securely fastened. Drive slowly and follow the
chain manufacturer's instructions. If you can
hear the chains contacting your vehicle, stop
and retighten them. If the contact continues,
slow down until it stops. Driving too fast or
spinning the wheels with chains on will damage
your vehicle.
6-56
Cleaning Aluminum or
Chrome
-Plated Wheels (If Equipped)
Keep your wheels clean using a soft clean cloth with
mild soap and water. Rinse with clean water. After
rinsing thoroughly, dry with a soft clean towel.
A wax may then be applied.
The surface of these wheels is similar to the painted
surface of your vehicle. Don't use strong soaps,
chemicals, abrasive polishes, abrasive cleaners, cleaners
with acid or abrasive cleaning brushes on them because
you could damage the surface. Do not use chrome polish
on any wheels other than chrome
-plated wheels.
Use chrome polish only on chrome
-plated wheels, but
avoid any painted surface of the wheel, and buff off
immediately after application.
Don't take your vehicle through an automatic car wash
that has silicon carbide tire cleaning brushes. These
brushes can also damage the surface of these wheels.
Cleaning Tires
To clean your tires, use a stiff brush with a tire cleaner.
NOTICE:
When applying a tire dressing always take care
to wipe off any overspray or splash from all
painted surfaces on the body or wheels of the
vehicle. Petroleum
-based products may damage
the paint finish and tires.
Sheet Metal Damage
If your vehicle is damaged and requires sheet metal
repair or replacement, make sure the body repair shop
applies anti
-corrosion material to the parts repaired or
replaced to restore corrosion protection.
Original manufacturer replacement parts will provide
the corrosion protection while maintaining the warranty.
6-58
GM Vehicle Care/Appearance Materials
PART NUMBERSIZEDESCRIPTIONUSAGE
99495423 in. x 25 in.Polishing Cloth ± Wax TreatedExterior polishing cloth
105017216 oz. (0.473 L)Tar and Road Oil RemoverRemoves tar, road oil and asphalt
105017316 oz. (0.473 L)Chrome Cleaner and PolishUse on chrome, stainless steel, nickel, copper and brass
105017416 oz. (0.473 L)White Sidewall Tire CleanerRemoves soil and black marks from whitewalls
105021432 oz. (0.946 L)Vinyl CleanerCleans vinyl tops, upholstery and convertible tops
105042723 oz. (0.680 L)Glass CleanerRemoves dirt, grime, smoke and fingerprints
1052918**8 oz. (0.237 L)Armor All ProtectantProtects leather, wood, acrylics, Plexiglas, plastic,
rubber and vinyl
105292516 oz. (0.473 L)Multi-Purpose Interior
CleanerCleans carpets, seats, interior trim, door panels
and floor mats
105292916 oz. (0.473 L)Wheel CleanerSpray on and rinse with water
10529308 oz. (0.237 L)Capture Dry Spot RemoverAttracts, absorbs and removes soils on fabric
123457212.5 sq. ft.Synthetic ChamoisShines vehicle without scratching
1234572512 oz. (0.354 L)Silicone Tire ShineSpray on tire shine
12377964*16 oz. (0.473 L)Finish EnhancerRemoves dust, fingerprints and surface contaminants
12377966*16 oz. (0.473 L)Cleaner WaxRemoves light scratches and oxidation and protects finish
12377984*16 oz. (0.473 L)Surface CleanerRemoves contaminants, blemishes and swirl marks
See your General Motors Parts Department for these products. * For exterior use only.
See ªRecommended Fluids and Lubricantsº in the Index. ** Not recommended for use on instrument panels.
6-62
Main Fuse Block
Fuse Usage
STOP/HAZARD Hazard Flashers, Brake
Switch Assembly
TURN B/U Traction Control/Second
-Gear
Start Switch, Back
-Up Lamp
Switch, Turn Flasher, Daytime
Running Lamps (DRL) Module
STG WHL
CNTRLSteering Wheel ControlsFuse Usage
RADIO ACCY Delco Monsoon Radio Amplifier,
Remote CD Player (Trunk)
TAIL LPS Daytime Running Lamps (DRL)
Module, Headlamp Switch
HVAC HVAC Selector Switch,
Rear Defogger Switch/Timer
PWR ACCY Parking Lamp Relay, Hatch
Release Relay, Power Mirror
Switch, Radio, Shock Sensor,
Instrument Cluster
COURTESY Body Control Module (BCM)
GAUGESBody Control Module (BCM),
Brake
-Transmission Shift Interlock
(BTSI), Instrument Cluster,
Daytime Running Lamps
(DRL) Module
AIR BAG Air Bag System
CIG/ACCY Cigarette Lighter, Data Link
Connector (DLC)
DEFOG/SEATS Rear Defogger Switch/Timer,
Power Seats
6-63
Fuse Usage
IGN Aftermarket Use Only
STG WHL
CNTRLSteering Wheel
Controls Illumination
WIPER/WASH Wiper Motor Assembly,
Wiper/Washer Switch
BATT Aftermarket Use Only
WINDOWSPower Windows Switch (RH, LH),
Express
-Down Module,
Convertible Top Switch
IP DIMMER Door Illumination Lamp (LH, RH),
Headlamp Switch, Fog Lamp
Switch, Instrument Cluster,
HVAC Control Assembly, PRNDL
Illumination Lamp, Ashtray Lamp,
Radio, Rear Window Defogger
Switch/Timer, Traction Control
(ASR)/Second
-Gear Start Switch,
Convertible Top Switch
ACCY Aftermarket Use Only
RADIO Body Control Module (BCM),
Radio, Amplifier, Steering Wheel
Controls
-RadioUnderhood Electrical Center
Fuse and Relay Center 1
Fuse Usage
ABS BAT SOL Anti
-Lock Brake System
TCS BAT Traction Control System and ETC
COOL FAN Cooling Fan Control
PCM BAT Powertrain Control Module (PCM)
FUEL PUMP Fuel Pump
6-67 Engine Specifications
Type
VIN Engine Code K V6. . . . . . . . . . . . . . . . . . . . . .
VIN Engine Code G V8. . . . . . . . . . . . . . . . . . . . . .
Fuel DeliveryFuel Injection . . . . . . . . . . . . . . . . . . .
Valve ArrangementIn
-Head . . . . . . . . . . . . . . . . . . .
Displacement
3800 V6 231 cubic inches (3791 cc). . . . . . . . . . . . .
5.7L V8 346 cubic inches (5665 cc). . . . . . . . . . . . .
Firing Order
3800 V6 1
-6-5-4-3-2 . . . . . . . . . . . . . . . . . . . . . . . .
5.7L V8 1
-8-7-2-6-5-4-3 . . . . . . . . . . . . . . . . . . . . .
Wheel Nut Torque100 lb
-ft (140 N´m) . . . . . . . . . .
Thermostat Temperature Specification
3800 V6 195F (91C) . . . . . . . . . . . . . . . . . . . . . . .
5.7L V8 180F (82C) . . . . . . . . . . . . . . . . . . . . . . .
Normal Maintenance
Replacement Parts
Engine Air Cleaner/FilterA917C . . . . . . . . . . . . . . .
Battery75
-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Oil Filter
3800 V6 PF47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7L V8 PF44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel Filter
3800 V6 G627. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7L V8 GF578. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCV Valve
3800 V6 CV892C. . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7L V8 CV948C. . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator CapRC24 . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark Plug
3800 V6 41
-921 (0.060 inch gap) . . . . . . . . . . . . . . .
5.7L V8 41
-952 (0.060 inch gap) . . . . . . . . . . . . . . .
Windshield Wiper Blade Replacement
Type Hook. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Length 24.0 inches (60.1 cm). . . . . . . . . . . . . . . . . .
Vehicle Dimensions
Length193.5 inches (491.5 cm) . . . . . . . . . . . . . . . . .
Width74.1 inches (188.3 cm) . . . . . . . . . . . . . . . . . . .
Height
Coupe 51.3 inches (130.3 cm). . . . . . . . . . . . . . . . .
Convertible 52.0 inches (131.2 cm). . . . . . . . . . . . .
Wheelbase101.1 inches (256.6 cm) . . . . . . . . . . . . . .
Tread
Front 60.7 inches (154.2 cm). . . . . . . . . . . . . . . . . .
Rear 60.6 inches (154.0 cm). . . . . . . . . . . . . . . . . . .