Chevrolet Trailblazer 2020 Owner's Manual page 270

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-SE Asia/CenAmer/
Carib-13517615) - 2020 - CRC - 3/22/19
270 Vehicle Care
Caution
The TPMS is not a substitute for
proper tire maintenance, and it is
the driver's responsibility to
maintain correct tire pressure,
even if under-inflation has not
reached the level to trigger
illumination of the TPMS low tire
pressure light.
All wheels must be equipped with
pressure sensors and the tires must
have the prescribed pressure.
Each tire, including the spare (if
provided), should be checked
monthly when cold. If required, the
tires should be inflated to the
pressure specified on the tire
placard. (If your vehicle has tires of
a different size than the size
indicated on the tire placard, you
should determine the proper tire
inflation pressure for those tires.)
As an added safety feature, the
TPMS illuminates a low tire
pressure light when one or more of
your tires is significantly
under-inflated.
Accordingly, when the low tire
pressure light illuminates, you
should stop and check your tires as
soon as possible, and inflate them
to the proper pressure. Driving on a
significantly under-inflated tire
causes the tire to overheat and can
lead to tire failure. Under-inflation
also reduces fuel efficiency and tire
tread life, and may affect the
vehicle's handling and stopping
ability.
Caution
Tire sealants could damage the
TPMS sensors. TPMS sensor
damage caused by using tire
sealants is not covered by the
vehicle warranty.
Your vehicle has also been
equipped with a TPMS malfunction
indicator to indicate when the
system is not operating properly.
The TPMS malfunction indicator is
combined with the low tire pressure
light. When the system detects a
malfunction, the light will flash for
approximately one minute and then
remain continuously illuminated.
This sequence will continue upon
subsequent vehicle start-ups as
long as the malfunction exists.
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
light 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.
See Tire Pressure Monitor
Operation 0 271.