When the malfunction indicator is illuminated, the system may not be able to detect or signal
low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons,
including the installation of replacement or alternate tires or wheels on the vehicle that
prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale
after replacing one or more tires or wheels on your vehicle, to ensure that the replacement or
alternate tires and wheels allow the TPMS to continue to function properly.
NOTE:
Ti r e p r e s s u r e s c h a n g e b y a p p r o x i m a t e l y 1 p s i ( 7 k P a ) p e r 1 2 ° F ( 7 ° C ) o f a i r t e m p e r a t u r e
change. Keep this in mind when checking tire pressure inside a garage, especially in the
Winter. Example: If garage temperature is 68°F (20°C) and the outside temperature is
32°F (0°C), then the cold tire inflation pressure should be increased by 3 psi (21 kPa),
which equals 1 psi (7 kPa) for every 12°F (7°C) for this outside temperature condition.
CAUTION!
The TPMS has been optimized for the original equipment tires and wheels. TPMS
pressures and warning have been established for the tire size equipped on your vehicle.
Undesirable system operation or sensor damage may result when using replacement
equipment that is not of the same size, type, and/or style. Aftermarket wheels can
cause sensor damage. Do not use tire sealant from a can, or balance beads if your
vehicle is equipped with a TPMS, as damage to the sensors may result.
Brake Warning Light
This light monitors various brake functions, including brake fluid level and parking brake
application. If the brake light turns on, it may indicate that the parking brake is applied,
that the brake fluid level is low, or that there is a problem with the anti-lock brake system
reservoir.
If the light remains on when the parking brake has been disengaged, and the fluid level is
at the full mark on the master cylinder reservoir, it indicates a possible brake hydraulic
system malfunction or that a problem with the Brake Booster has been detected by the
Anti-Lock Brake System (ABS)/Electronic Stability Control (ESC) system. In this case, the
light will remain on until the condition has been corrected. If the problem is related to the
brake booster, the ABS pump will run when applying the brake, and a brake pedal
pulsation may be felt during each stop.
The dual brake system provides a reserve braking capacity in the event of a failure to a
portion of the hydraulic system. A leak in either half of the dual brake system is indicated
by the Brake Warning Light, which will turn on when the brake fluid level in the master
cylinder has dropped below a specified level. The light will remain on until the cause is
corrected.
WHAT TO DO IN EMERGENCIES
169
Spare Tire Matching Original Equipped Tire And Wheel — If Equipped
Yo u r v e h i c l e m a y b e e q u i p p e d w i t h a s p a r e t i r e a n d w h e e l e q u i v a l e n t i n l o o k a n d f u n c t i o n
to the original equipment tire and wheel found on the front or rear axle of your vehicle. This
spare tire may be used in the tire rotation for your vehicle. If your vehicle has this option,
refer to an authorized tire dealer for the recommended tire rotation pattern.
Compact Spare Tire — If Equipped
The compact spare is for temporary emergency use only. You can identify if your vehicle
is equipped with a compact spare by looking at the spare tire description on the Tire and
Loading Information Placard located on the driver’s side door opening or on the sidewall
of the tire. Compact spare tire descriptions begin with the letter “T” or “S” preceding the
size designation. Example: T145/80D18 103M.
T, S = Temporary Spare Tire
Since this tire has limited tread life, the original equipment tire should be repaired (or
replaced) and reinstalled on your vehicle at the first opportunity.
Do not install a wheel cover or attempt to mount a conventional tire on the compact spare
wheel, since the wheel is designed specifically for the compact spare tire. Do not install
more than one compact spare tire and wheel on the vehicle at any given time.
WARNING!
Compact spares are for temporary emergency use only. With these spares, do not drive
more than 50 mph (80 km/h). Temporary use spares have limited tread life. When the
tread is worn to the tread wear indicators, the temporary use spare tire needs to be
replaced. Be sure to follow the warnings, which apply to your spare. Failure to do so
could result in spare tire failure and loss of vehicle control.
Full Size Spare — If Equipped
The full size spare is for temporary emergency use only. This tire may look like the
originally equipped tire on the front or rear axle of your vehicle, but it is not. This spare tire
may have limited tread life. When the tread is worn to the tread wear indicators, the
temporary use full size spare tire needs to be replaced. Since it is not the same as your
original equipment tire, replace (or repair) the original equipment tire and reinstall on the
vehicle at the first opportunity.
Limited-Use Spare — If Equipped
The limited-use spare tire is for temporary emergency use only. This tire is identified by a
label located on the limited-use spare wheel. This label contains the driving limitations for
this spare. This tire may look like the original equipped tire on the front or rear axle of your
vehicle, but it is not. Installation of this limited-use spare tire affects vehicle handling.
Since it is not the same as your original equipment tire, replace (or repair) the original
equipment tire and reinstall on the vehicle at the first opportunity.
MAINTAINING YOUR VEHICLE
212
