Traction control NISSAN FRONTIER 2008 D22 / 1.G Owners Manual

do not need to have your vehicle towed to
the dealer.
cMalfunction Indicator Light blinking — An
engine misfire has been detected which may
damage the emission control system. To re-
duce or avoid emission control system dam-
age:
– do not drive at speeds above 45 MPH
(72 km/h) .
– avoid hard acceleration or deceleration.
– avoid steep uphill grades.
– if possible, reduce the amount of cargo
being hauled or towed.
The Malfunction Indicator Light may stop blinking
and come on steady. Have the vehicle inspected
by a NISSAN dealer. You do not need to have
your vehicle towed to the dealer.
CAUTION
Continued vehicle operation without hav-
ing the emission control system checked
and repaired as necessary could lead to
poor driveability, reduced fuel economy,
and possible damage to the emission con-
trol system.
Overdrive off indicator light
(A/T models only)
This light comes on when the overdrive function
is OFF.
The automatic transmission overdrive function is
controlled by the overdrive switch.
See “Driving the vehicle” in the “Starting and
driving” section of this manual.
Security indicator light (if so
equipped)
This light blinks whenever the ignition switch is in
the LOCK, OFF or ACC position. This function
indicates the security system equipped on the
vehicle is operational.
For additional information, see “Security sys-
tems” later in this section.
Slip indicator light for models
with ABLS (if so equipped)
This indicator light comes on if the active brake
limited slip is activated. If activated, the system
will apply braking to the slipping drive wheel(s) ,
giving the non-slipping wheel(s) more traction.
Slip indicator light for models
with VDC (if so equipped)
This indicator light will blink when the traction
control system is limiting wheel spin. Slippery
road conditions may exist if the slip indicator
blinks on. If this happens, adjust your driving
accordingly.
The slip indicator light also comes on when you
turn the ignition key to the ON position. The light
will turn off after about 2 seconds if the system is
operational. If the light does not come on or does
not go off, have the traction control system
checked by a NISSAN dealer.
If the battery is removed or discharged, the trac-
tion control system is disabled and the slip indi-
cator light will not turn off after 2 seconds when
the ignition switch is turned to the ON position.
To reset the system, you must perform the reset
procedure. Refer to “Vehicle Dynamic Control
(VDC) system” in the “Starting and driving” sec-
tion of this manual.
If the light does not go off after performing the
reset procedure, have the traction control system
checked by a NISSAN dealer.
Instruments and controls2-19
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Transfer 4LO position
indicator light (
model)
The light should turn off within 1 second after
turning the ignition switch to ON.
This light comes on when the 4WD shift switch is
set in the 4LO position with the ignition key in the
ON position.
The transfer case may be damaged if you shift the
switch while driving.
Make sure the transfer 4LO position indicator
light turns on when you shift the 4WD shift switch
to 4LO.
The indicator light may blink while shifting
from one drive mode to the other.
The 4LO indicator light must stop blinking and
remain illuminated or turn off before shifting the
transmission into gear. If the transmission selec-
tor lever is shifted from the N position to any other
gear when the 4LO indicator light is blinking, the
vehicle may move unexpectedly.
When you shift between 4H and 4LO, follow the
instructions below:
cFor automatic transmission models, stop the
vehicle and shift the transmission selector
lever to the N position with the brake pedal
depressed, then depress and turn the 4WD
shift switch to 4LO or 4H.cFor manual transmission models, stop the
vehicle and shift the transmission selector
lever to the N position with the clutch pedal
depressed, then depress and turn the 4WD
shift switch to 4LO or 4H.
You cannot move the transfer 4WD shift switch
between 4H and 4LO unless you stop the vehicle
and shift the transmission selector lever to the N
position with the brake pedal (AT models) or
clutch pedal (MT models) depressed.
Turn signal/hazard indicator
lights
The appropriate light flashes when the turn signal
switch is activated.
Both lights flash when the hazard switch is turned
on.
Vehicle Dynamic Control off
indicator light (if so equipped)
This indicator light comes on when the Vehicle
Dynamic Control off switch is pushed to OFF, the
transfer case is in the 4LO position (
model) , or when the Vehicle Dynamic Control
system is not functioning properly. This indicates
the Vehicle Dynamic Control system is not oper-
ating.Push the Vehicle Dynamic Control off switch
again or restart the engine and the system will
operate normally. See “Vehicle Dynamic Control
(VDC) system” in the “Starting and driving” sec-
tion of this manual.
The Vehicle Dynamic Control light also comes on
when you turn the ignition key to the ON position.
The light will turn off after about 2 seconds if the
system is operational. If the light stays on or
comes on along with the SLIP indicator light
while you are driving, have the Vehicle Dynamic
Control system checked by a NISSAN dealer.
If the battery is removed or discharged, the Ve-
hicle Dynamic Control system is disabled and the
VDC indicator light will not turn off after 2 sec-
onds when the ignition switch is turned to the ON
position. To reset the system, you must perform
the reset procedure. Refer to “Vehicle Dynamic
Control (VDC) system” in the “Starting and driv-
ing” section of this manual.
If the light does not go off after performing the
reset procedure, have the traction control system
checked by a NISSAN dealer.
While the Vehicle Dynamic Control system is
operating, you might feel slight vibration or hear
the system working when starting the vehicle or
accelerating, but this is normal.
2-20Instruments and controls
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cthe 4WD switch must be in the 4H position
and the vehicle speed must be under 21
mph (35 km/h) , and
cthe hill descent control system switch must
be ON.
The hill descent control indicator light will come
on when the system is activated. Also, the
stop/tail lights illuminate while the hill descent
control system applies the brakes to control ve-
hicle speed.
If the accelerator or brake pedal is depressed
while the hill descent control system is on, the
system will stop operating temporarily. As soon
as the accelerator or brake pedal is released, the
hill descent control system begins to function
again if the hill descent control operating condi-
tions are fulfilled.
The hill descent control indicator light blinks if the
switch is on and all conditions for system activa-
tion are not met or if the system becomes disen-
gaged for any reason.
To turn off the hill descent control system, push
the switch to the OFF position.
For additional information, see “Hill descent con-
trol system on indicator light” earlier in this sec-
tion and “Hill descent control system” in the
“Starting and driving” section of this manual.The Electronic Locking Rear Differential (E-Lock)
system can help provide added traction if the
vehicle is stuck or becoming stuck.
To activate the E-Lock system:
cthe 4WD switch must be in the 4LO position
(4-wheel drive vehicles) ,
cthe vehicle must be stopped or moving at 4
mph (7 km/h) or less, and
cthe E-Lock system switch must be turned
ON.When the E-Lock switch is turned ON, the indi-
cator light will flash until the system engages.
However, if all operation conditions listed above
are not met or the system becomes disengaged,
the indicator light will continue to flash.
The Anti-Lock Brake (ABS) system is disabled
and the ABS light illuminates when the E-Lock
system is ON. Also, the Vehicle Dynamic Control
(VDC) system is disabled and the VDC light
illuminates when the E-Lock system is ON.
See “Electronic locking rear differential (E-Lock)
system” in the “Starting and Driving” section for
further explanation and system limitations.
WARNING
cNever leave the E-Lock system ON
when driving on paved or hard-surfaced
roads. Turning the vehicle may result in
the rear wheels slipping and result in an
accident and personal injury. After us-
ing the E-Lock system to free the ve-
hicle, turn the system OFF.
LIC0729
ELECTRONIC LOCKING REAR
DIFFERENTIAL (E-Lock) SYSTEM
SWITCH (if so equipped)
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2WD or 4WD shift procedure:
4WD Shift
Switch PositionWheels
DrivenIndicator Light
Use Conditions 4WD Shift Procedure
4WD shift Transfer 4LO position
2WDRear
wheels
For driving on dry, paved roads (Economy
drive) or state dynamometer I/M testingMove the 4WD switch.
2WD <—> 4H
4WD shift indicator light will indicate transfer shift position engaged.
4H4 wheels
For driving on rocky, sandy or snow-covered
roads
Neutral
*1
May blinkNeutral disengages the automatic transmis-
sion mechanical parking lock, which will allow
the vehicle to roll. Do not leave the transfer
shift position in Neutral.*21. Stop the vehicle.
2. For automatic transmission vehicles: Shift the transmission selector to the (N)
position with the brake pedal depressed.
For manual transmission vehicles: Shift the transmission shift lever to the (N)
position with the clutch depressed.
3. For automatic transmission vehicles: Depress and turn the 4WD shift switch
to 4LO or 4H with the brake pedal depressed.
For manual transmission vehicles: Depress and turn the 4WD switch to 4LO
or 4H with the clutch pedal depressed.
THE TRANSFER CASE DOES NOT ENGAGE BETWEEN 4H AND 4LO (OR
4LO TO 4H) UNLESS YOU HAVE FIRST STOPPED THE VEHICLE, DE-
PRESSED THE BRAKE PEDAL AND MOVED THE TRANSMISSION SELECTOR
TO NEUTRAL FOR AUTOMATIC TRANSMISSION VEHICLES. FOR MANUAL
TRANSMISSION VEHICLES YOU MUST MOVE THE TRANSMISSION SHIFT
LEVER TO NEUTRAL. *3
4LO
4 wheels
IlluminatedFor use when maximum power and traction is
required (for example: on steep grades or
rocky, sandy, muddy roads)
*1: Before moving the transmission selector or shift lever from neutral, wait until the 4LO indicator light stays on steady. This indicates that the 4WD shift procedure is completed and the transfer gear is correctly set in
the 4LO position. If the vehicle is shifted into gear before the indicator is on steady, the transfer gear may grind, not engage correctly or stay in the neutral position.
- If the 4WD warning light illuminates, perform the following procedure to return the transfer case to correct operating condition.
1. Turn off the engine by turning the ignition switch9OFF9.
2. Start the engine.
- Check that the 4WD warning light turns off. If the 4WD warning light illuminates, have the system checked by a NISSAN dealer.
3. Apply the parking brake, for automatic transmission vehicles, depress the brake pedal and move the transmission selector to Neutral position. Formanual transmission vehicles, move the transmission shift lever to
Neutral position.
4. With the brake pedal depressed on automatic transmission vehicles or with the clutch pedal depressed on manual transmission vehicles, move the 4WDshift switch to desired mode.
- Be sure to wait until the transfer gear change completes before shifting the transmission selector or transmission shift lever from Neutral position.
*2: While changing in and out of 4LO, the ignition key must be ON and the vehicle’s engine must be running for a shift to take place and for the indicator lights (4WD shift and 4LO position indicator) to be operable.
Otherwise, the shift will not take place and no indicator lights will be on or flashing.
*3: Make sure the transfer 4LO position indicator light turns on when you shift the 4WD shift switch to 4LO. The
indicator light (if so equipped) will also turn on when 4LO is selected. See “Vehicle dynamic control
system” later in this section.
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The transfer case 4WD shift switch is used to
select either 2WD or 4WD depending on the
driving conditions. There are three types of drive
modes available, 2WD, 4H and 4LO.
The 4WD shift switch electronically controls the
transfer case operation. Rotate the switch to
move between each mode, 2WD, 4H and 4LO.
To change into or out of 4LO, the vehicle
MUST be stationary, shift the transmission
selector or transmission shift lever to Neu-
tral (N) , and for automatic transmission
vehicles depress the brake pedal or for
manual transmission vehicles depress the
clutch pedal. The switch must be de-
pressed and turned when changing into or
out of 4LO.
WARNING
cWhen parking, apply the parking brake
before stopping the engine and make
sure that the 4WD shift indicator light is
on and the ATP warning light goes off.
Otherwise, the vehicle could unexpect-
edly move even if the automatic trans-
mission is in the P position.cThe 4LO indicator light must stop blink-
ing and remain illuminated or turn off
before shifting the transmission into
gear. If the transmission selector or
transmission shift lever is shifted from
the (N) position to any other gear when
the 4LO indicator light is blinking, the
vehicle may move unexpectedly.
CAUTION
cNever shift the 4WD shift switch be-
tween 4LO and 4H while driving.
cThe 4H position provides greater trac-
tion. Avoid excessive speed, as it will
cause increased fuel consumption and
higher oil temperatures, and could
damage drivetrain components.
Speeds over 62.5 MPH (100 km/h) in 4H
is not recommended.
cThe 4LO position provides maximum
power and traction. Avoid raising ve-
hicle speed excessively, as the maxi-
mum speed is approximately 31 MPH
(50 km/h) .
cWhen driving straight, shift the 4WD
shift switch to the 2WD or 4H position.
Do not move the 4WD shift switch when
making a turn or reversing.cDo not shift the 4WD shift switch (be-
tween 2WD and 4H) while driving on
steep downhill grades. Use the engine
brake and low automatic transmission
gears (D1 or D2) or manual transmis-
sion (1st gear or 2nd gear) for engine
braking.
cDo not operate the 4WD shift switch
(between 2WD and 4H) with the rear
wheels spinning.
cDo not drive on dry hard surface roads
in the 4H or 4LO position. Driving on dry
hard surfaces in 4H or 4LO may cause
unnecessary noise and tire wear.
NISSAN recommends driving in the
2WD position under these conditions.
cThe 4WD transfer case may not be
shifted between 4H and 4LO at low am-
bient temperatures and the transfer
4LO position indicator light may blink
even when the 4WD shift switch is
shifted. After driving for a while you can
change the 4WD transfer case between
4H and 4LO.
When driving on rough roads,
cSet the 4WD shift switch to 4H or 4LO.
cDrive carefully according to the road surface
conditions.
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cWhen the warning light comes on, the
2WD mode may be engaged even if the
4WD shift switch is in 4H. Be especially
careful when driving. If corresponding
parts are malfunctioning, the 4WD
mode will not be engaged even if the
4WD shift switch is shifted.
cDo not drive the vehicle in the 4H or 4LO
position on dry hard surface roads. Driv-
ing on dry, hard surfaces in 4H or 4LO
may cause unnecessary noise, tire wear
and increased fuel consumption.
If the 4WD warning light turns on when
you are driving on dry hard surface
roads:
– in the 4H position, shift the 4WD shift
switch to 2WD.
– in the 4LO position for automatic
transmission vehicles, stop the ve-
hicle and shift the transmission se-
lector to the N position with the
brake pedal depressed and shift the
4WD shift switch to 2WD.– in the 4LO position for manual trans-
mission vehicles, stop the vehicle
and shift the transmission shift lever
to the N position with the clutch
pedal depressed and shift the 4WD
shift switch to 2WD.
cIf the warning light is still on after the
above operation, have your vehicle
checked by a NISSAN dealer as soon as
possible.
cThe transfer case may be damaged if
you continue driving with the warning
light blinking slowly.The E-Lock system can provide additional trac-
tion and should only be used when a vehicle has
become or is becoming stuck. This system oper-
ates by electronically “locking” the two rear drive
wheels together, allowing them to turn at the
same speed. The system is used when it is not
possible to free a stuck vehicle even when using
the 4LO position (4 wheel drive vehicles) .
When added traction is required, activate the
E-Lock system by pushing the switch ON. See
“Electronic Locking Rear Differential (E-Lock)
system switch” in the “Instruments and Controls”
section. Once the system fully engages, the indi-
cator light in the instrument panel will remain ON.
When the system is activated, both rear wheels
will engage, providing added traction.
The rear wheels may momentarily slip or move to
engage the system, and the system will only
engage up to approximately 4 MPH (7 km/h) .
Once the vehicle is free, the system should be
turned OFF and driving resumed.
The Anti-Lock Brake (ABS) system is disabled
and the ABS light illuminates when the E-Lock
system is ON. Also, the Vehicle Dynamic Control
(VDC) system is disabled and the VDC light
illuminates when the E-Lock system is ON.
ELECTRONIC LOCKING REAR
DIFFERENTIAL (E-Lock) SYSTEM (if
so equipped)
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When the ABS senses that one or more wheels
are close to locking up, the system electronically
controls the pressure applied to each brake.
This action is similar to pumping the brakes very
quickly. You may feel a pulsation in the brake
pedal and hear a noise from under the hood or
feel a vibration from the actuator when it is oper-
ating. This is normal and indicates that the ABS is
operating properly. However, the pulsation may
indicate that road conditions are hazardous and
extra care is required while driving.cABLS is a form of traction control using
sensors from the Anti-lock Brake System
(ABS) to transfer power from a slipping drive
wheel to a wheel with more traction. The
ABLS system applies braking to the slipping
wheel, which helps redirect power to an-
other wheel.
cOn 4WD models the ABLS system operates
in both 4H and 4LO modes. If 4WD mode is
engaged, the ABLS system will operate for
both drive axles. On 2WD vehicles, the
ABLS system operates on the drive axle
only.
cThe ABLS system is always ON unless the
system detects brake pad overheating. If
high brake pad temperature is detected, it
will turn OFF, but normal brake function will
continue. ABLS will function even when the
VDC system (if so equipped) is turned OFF.
WARNING
The ABLS system provides increased trac-
tion, but will not prevent accidents due to
abrupt steering operation or by careless
driving or dangerous driving practices.
Reduce vehicle speed and be especially
careful when driving and cornering on
slippery surfaces, and always drive
carefully.When accelerating or driving on slippery sur-
faces, the tires may spin or slide. With the Vehicle
Dynamic Control (VDC) system, sensors detect
these movements and control the braking and
engine output to help improve vehicle stability.
cWhen the Vehicle Dynamic Control (VDC)
system is operating, the SLIP indicator in the
instrument panel blinks.
cIf the 4WD transfer case is shifted into 4LO
the
indicator light will come on and
the VDC system will be turned off. See
“Transfer case shifting procedures” earlier in
this section.
cIf the SLIP indicator blinks, the road condi-
tions are slippery. Be sure to adjust your
speed and driving to these conditions. See
“Slip indicator light”, and “Vehicle Dynamic
Control (VDC) off indicator light” in the “In-
struments and controls” section.
If the battery is removed or discharged, the trac-
tion control system may be disabled and the
SLIPand
indicator lights will not turn off
after 2 seconds when the ignition switch is turned
to the ON position. Perform the following proce-
dure to reset the system:
cStart the engine and set the steering wheel
in the straight forward position.
ACTIVE BRAKE LIMITED SLIP (ABLS)
SYSTEM (if so equipped)VEHICLE DYNAMIC CONTROL (VDC)
SYSTEM (if so equipped)
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cDrive the vehicle at speeds above 10 mph
(15 km/h) for at least 10 minutes.
cThe VDC OFF indicator light should go off
indicating the traction control system is op-
erational.
cIf you interrupt the reset procedure by turn-
ing the ignition off, you will need to restart
the reset procedure.
If after driving the vehicle for more than 10 min-
utes and theSLIPand
lights remain illumi-
nated in the instrument panel, have the Vehicle
Dynamic Control system checked by a NISSAN
dealer.
If the vehicle is operated with the Vehicle Dy-
namic Control system off using the VDC OFF
switch, most VDC functions will be turned off.
The VDC system will still try to transfer power
from a slipping drive wheel to one with more
traction when the VDC system switch is OFF. The
SLIPindicator will flash if wheel spin is detected.
The ABS will still operate with the VDC system
off.
When the VDC system is operating, you may feel
a pulsation in the brake pedal and hear a noise or
vibration from under the hood. This is normal and
indicates that the VDC system is working prop-
erly.The computer has a built in diagnostic feature
that tests the system each time you start the
engine and move the vehicle forward or in reverse
at a slow speed. When the self-test occurs, you
may hear a clunk noise and/or feel a pulsation in
the brake pedal. This is normal and is not an
indication of a malfunction.
WARNING
cThe Vehicle Dynamic Control system is
designed to help improve driving stabil-
ity but does not prevent accidents due
to abrupt steering operation at high
speeds or by careless or dangerous
driving techniques. Reduce vehicle
speed and be especially careful when
driving and cornering on slippery sur-
faces and always drive carefully.
cIf brake related parts such as brake
pads, rotors and calipers are not stan-
dard equipment or are extremely dete-
riorated, the Vehicle Dynamic Control
system may not operate properly and
the Vehicle Dynamic Control off indica-
tor light may come on.
cDo not modify the vehicle’s suspension.
If suspension parts such as shock ab-
sorbers, struts, springs, stabilizer bars,bushings and wheels are not NISSAN
approved for your vehicle or are ex-
tremely deteriorated the Vehicle Dy-
namic Control system may not operate
properly. This could adversely affect ve-
hicle handling performance, and the
VDC OFF indicator light may come on.
cWhen driving on extremely inclined sur-
faces such as higher banked corners,
the Vehicle Dynamic Control system
may not operate properly and the VDC
OFF indicator light may come on. Do
not drive on these types of roads.
cWhen driving on an unstable surface
such as a turntable, ferry, elevator or
ramp, the Vehicle Dynamic Control off
indicator light may illuminate. This is
not a malfunction. Restart the engine
after driving onto a stable surface.
cIf wheels or tires other than the recom-
mended ones are used, the Vehicle Dy-
namic Control system may not operate
properly and the Vehicle Dynamic Con-
trol off indicator light may come on.
cThe Vehicle Dynamic Control system is
not a substitute for winter tires or tire
chains on a snow covered road.
Starting and driving5-33
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3. Tire chains may be used. For details see
“Tire chains” in the “Maintenance and do-it-
yourself” section of this manual.
SPECIAL WINTER EQUIPMENT
It is recommended that the following items be
carried in the vehicle during winter:
cA scraper and stiff-bristled brush to remove
ice and snow from the windows and wiper
blades.
cA sturdy, flat board to be placed under the
jack to give it firm support.
cA shovel to dig the vehicle out of snowdrifts.
cExtra window washer fluid to refill the reser-
voir tank.
DRIVING ON SNOW OR ICE
WARNING
cWet ice (32°F, 0°C and freezing rain) ,
very cold snow or ice can be slick and
very hard to drive on. The vehicle will
have much less traction or “grip” under
these conditions. Try to avoid driving on
wet ice until the road is salted or
sanded.cWhatever the condition, drive with cau-
tion. Accelerate and slow down with
care. If accelerating or downshifting too
fast, the drive wheels will lose even
more traction.
cAllow more stopping distance under
these conditions. Braking should be
started sooner than on dry pavement.
cAllow greater following distances on
slippery roads.
cWatch for slippery spots (glare ice) .
These may appear on an otherwise
clear road in shaded areas. If a patch of
ice is seen ahead, brake before reach-
ing it. Try not to brake while on the ice,
and avoid any sudden steering
maneuvers.
cDo not use the cruise control on slip-
pery roads.
cSnow can trap dangerous exhaust
gases under your vehicle. Keep snow
clear of the exhaust pipe and from
around your vehicle.
ENGINE BLOCK HEATER (if so
equipped)
WARNING
cDo not use your engine block heater
with an ungrounded electrical system
or a 2-pronged adapter. You can be se-
riously injured by an electrical shock if
you use an ungrounded connection.
cDisconnect and properly store the en-
gine block heater cord before starting
the engine. Damage to the cord could
result in an electrical shock and can
cause serious injury.
cUse a heavy-duty 3-wire, 3-pronged ex-
tension cord rated for at least 10 A. Plug
the extension cord into a Ground Fault
Interrupt (GFI) protected, grounded
110-VAC outlet. Failure to use the
proper extension cord or a grounded
outlet can result in a fire or electrical
shock and cause serious personal
injury.
Engine block heaters are available through
NISSAN dealers to assist in cold temperature
starting. The engine block heater should be used
when the outside temperature is 20° F (-7° C) or
lower.
5-36Starting and driving
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DOT (Department of Transportation) Quality
Grades: All passenger car tires must conform to
federal safety requirements in addition to these
grades.
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA Temperature A
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course. For example, a tire graded
150 would wear one and one-half (1 1/2) times
as well on the government course as a tire graded
100. The relative performance of tires depends
upon the actual conditions of their use, however,
and may depart significantly from the norm due to
variations in driving habits, service practices and
differences in road characteristics and climate.
Traction AA, A, B and C
The traction grades, from highest to lowest, are
AA, A, B, and C. Those grades represent the
tire’s ability to stop on wet pavement as mea-
sured under controlled conditions on specified
government test surfaces of asphalt and con-
crete. A tire marked C may have poor traction
performance.WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
Temperature A, B and 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 exces-
sive temperature can lead to sudden tire failure.
The grade C corresponds to a level of perfor-
mance which all passenger car tires must meet
under the Federal Motor 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 es-
tablished for a tire that is properly inflated
and not overloaded. Excessive speed,
under-inflation, or excessive loading, ei-
ther separately or in combination, can
cause heat build-up and possible tire
failure.
UNIFORM TIRE QUALITY GRADING
9-34Technical and consumer information
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