Tire Pressure Monitor Operation - Chevrolet 2008 TrailBlazer Owner's Manual

Tire Pressure Monitor Operation

The Tire Pressure Monitor System (TPMS) is designed to
warn the driver when a low tire pressure condition exists.
TPMS sensors are mounted onto each tire and wheel
assembly, excluding the spare tire and wheel assembly.
The TPMS sensors monitor the air pressure in the
vehicle's tires and transmit the tire pressure readings to a
receiver located in the vehicle.
The TPMS is designed to alert the driver if a low tire
pressure condition exists. If your vehicle has the Driver
Information Center (DIC) steering wheel control buttons,
tire pressure levels may also be checked through the
DIC. See "Tire Pressures" under DIC Operation and
Displays on page 3-50.
When a low tire pressure
condition is detected, the
TPMS illuminates the
low tire pressure warning
light located on the
instrument panel cluster.
At the same time a message to check the pressure in a
specific tire appears on the Driver Information Center
(DIC) display. The low tire pressure warning light and the
DIC warning message come on at each ignition cycle
until the tires are inflated to the correct inflation pressure.
Using the DIC, tire pressure levels can be viewed by the
driver. For additional information and details about the
DIC operation and displays see DIC Operation and
Displays on page 3-50 and DIC Warnings and Messages
on page 3-53.
The low tire pressure warning light may come on in cool
weather when the vehicle is first started, and then turn off
as you start to drive. This could be an early indicator that
the air pressure in the tire(s) is low and needs to be
inflated to the proper pressure.
A Tire and Loading Information label, attached to your
vehicle, shows the size of your vehicle's original
equipment tires and the correct inflation pressure for your
vehicle's tires when they are cold. See Loading Your
Vehicle on page 4-35, for an example of the Tire and
Loading Information label and its location on your vehicle.
Also see Inflation - Tire Pressure on page 5-65.
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