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All vehicle wheels and tires must be the same size and
type as the original equipment wheels and tires must be
properly inflated to produce accurate signals for the
computer.
WARNING!
Significant over or under inflation of tires, or mixing
sizes of front or rear tires or wheels on the vehicle
can lead to loss of braking effectiveness.
The Anti-Lock Brake System conducts a low-speed self-
test at about 12 mph (20 km/h). If you have your foot
lightly on the brake while this test is occurring, you may
feel slight pedal movement. The movement can be more
apparent on ice and snow. This is normal.The Anti-Lock Brake System pump motor runs during
the self-test at 12 mph (20 km/h) and during an ABS stop.
The pump motor makes a low humming noise during
operation, which is normal.
WARNING!
Pumping of the Anti-Lock Brakes will diminish
their effectiveness and may lead to an accident.
Pumping makes the stopping distance longer. Just
press firmly on your brake pedal when you need to
slow down or stop.
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In the event power assist is lost for any reason (for
example, repeated brake applications with the engine
off), the brakes will still function. The effort required to
brake the vehicle will be much greater than that required
with the power system operating.
If either the front or rear hydraulic system loses normal
capability, the remaining system will still function with
some loss of overall braking effectiveness. This will be
evident by increased pedal travel during application,
greater pedal force required to slow or stop, and activa-
tion of the Brake Warning Lamp during brake use.
NOTE:Your Viper has a very high performance braking
system. The brake pads are a semi-metallic compound
which has been selected for superior fade resistance and
consistent operation. A compromise is that under some
weather and operating conditions, the brakes may squeal
slightly during light brake applications.Brake Pad Break-In
The brakes on your new Viper do not require a long
break-in period, but avoid repeated hard brake applica-
tions from high speeds during initial break-in. Also avoid
severe brake loading such as may be encountered when
descending long mountain grades.
POWER STEERING
The power assisted steering system of your vehicle
provides mechanical steering capability in the event
power assist is lost.
If for some reason the hydraulic pressure is interrupted,
it will still be possible to steer your vehicle. Under these
conditions you will observe a substantial increase in
steering effort.
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TIRE SAFETY INFORMATION
Tire Markings
NOTE:
•P(Passenger)-Metric tire sizing is based on U.S. design
standards. P-Metric tires have the letter“P”molded
into the sidewall preceding the size designation. Ex-
ample: P215/65R15 95H.
•European Metric tire sizing is based on European
design standards. Tires designed to this standard have
the tire size molded into the sidewall beginning with
the section width. The letterPis absent from this tire
size designation. Example: 215/65R15 96H
•LT(Light Truck)-Metric tire sizing is based on U.S.
design standards. The size designation for LT-Metric
tires is the same as for P-Metric tires except for the
letters“LT”that are molded into the sidewall preced-
ing the size designation. Example: LT235/85R16.
•Temporary Spare tires are high pressure compact
spares designed for temporary emergency use only.
Tires designed to this standard have the letter“T”
molded into the sidewall preceding the size designa-
tion. Example: T145/80D18 103M.
•High Flotation tire sizing is based on U.S. design
standards and begins with the tire diameter molded
into the sidewall. Example: 31x10.5 R15 LT.
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Tire Sizing Chart
EXAMPLE:
Size Designation:
P= Passenger car tire size based on U.S. design standards
....blank....= Passenger car tire based on European design standards
LT= Light Truck tire based on U.S. design standards
T= Temporary Spare tire
31= Overall Diameter in Inches (in)
215= Section Width in Milimeters (mm)
65= Aspect Ratio in Percent (%)
—Ratio of section height to section width of tire.
10.5= Section Width in Inches (in)
R= Construction Code
—Rmeans Radial Construction.
—Dmeans Diagonal or Bias Construction.
15= Rim Diameter in Inches (in)
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EXAMPLE:
Service Description:
95= Load Index
—A numerical code associated with the maximum load a tire can carry.
H= Speed Symbol
—A symbol indicating the range of speeds at which a tire can carry a load corresponding
to its load index under certain operating conditions.
—The maximum speed corresponding to the Speed Symbol should only be achieved un-
der specified operating conditions. (ie. tire pressure, vehicle loading, road conditions and
posted speed limits).
Load Identification:
....blank....= Absence of any text on sidewall of the tire indicates a Standard Load (SL) Tire
Extra Load (XL)= Extra Load (or Reinforced) Tire
Light Load= Light Load Tire
C,D,E= Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load—Maximum Load indicates the maximum load this tire is designed to carry.
Maximum Pressure—Maximum Pressure indicates the maximum permissible cold tire inflation pressure for this
tire.
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FUEL REQUIREMENTS
Your vehicle is designed to meet all emis-
sion regulations and provide excellent fuel
economy when using high quality pre-
mium unleaded gasoline having an octane
rating of 91 or higher.
Spark Knock
Light spark knock at low engine speeds is not harmful to
your engine. However, continued heavy spark knock at
high speeds can cause damage and immediate service is
required.
Poor quality gasoline can cause problems such as hard
starting, stalling and hesitations. If you experience these
symptoms, try another brand of“regular”gasoline be-
fore considering service for the vehicle.
Over 40 automobile manufacturers around the world
have issued and endorsed consistent gasoline specifica-
tions (the World Wide Fuel Charter, WWFC) to definefuel properties necessary to deliver enhanced emissions,
engine performance, and durability for your vehicle. The
manufacturer recommends the use of gasolines that meet
the WWFC specifications if they are available.
Reformulated Gasoline
Many areas of the country require the use of cleaner
burning fuel referred to as Reformulated Gasoline.
Reformulated gasolines contain oxygenates, and are spe-
cially blended to reduce vehicle emissions and improve
air quality.
The manufacturer strongly supports the use of reformu-
lated gasolines. Properly blended reformulated gasolines
will provide excellent performance and durability of
engine and fuel system components.
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Materials Added to Fuel
All gasoline sold in the United States and Canada is
required to contain effective detergent additives. The use
of additional detergents or other additives is not needed
under normal conditions.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•The use of leaded gas is prohibited by Federal law.
Using leaded gasoline can impair engine performance,
or damage the emission control system.
•An out-of-tune engine, or certain fuel or ignition
malfunctions, can cause the catalytic converter to
overheat. If you notice a pungent burning odor orsome light smoke, your engine may be out-of-tune or
malfunctioning and may require immediate service.
Contact your dealer for service assistance.
•The use of fuel additives which are now being sold as
octane enhancers are not recommended. Most of these
products contain high concentrations of methanol.
Fuel system damage or vehicle performance problems
resulting from the use of such fuels or additives are not
the responsibility of the manufacturer.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
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▫Body Lubrication.....................179
▫Front And Rear Suspension Ball Joints......179
▫Steering Linkage......................180
▫Body Mechanism Lubrication.............180
▫Windshield Washers...................182
▫Exhaust System......................182
▫Cooling System.......................183
▫Hoses And Vacuum/Vapor Harnesses.......188
▫Brake System........................188
▫Brake, Power Steering, And Fuel System
Hoses.............................189
▫Brake And Clutch Fluid.................190
▫Master Cylinder......................191▫Hydraulic Clutch.....................192
▫Transmission........................193
▫Rear Axle...........................193
▫Wheel Bearings.......................194
▫Appearance Care.....................194
Fuses—Power Distribution Center..........197
Vehicle Storage........................202
Replacement Bulbs......................204
▫Interior Light Bulbs....................204
▫Exterior Light Bulbs...................205
Exterior Light Bulb Service................205
▫Headlight, Parking, Front Park, Turn Signal, Front
Sidemarker And Front Fog Light Removal....205
158 MAINTAINING YOUR VEHICLE