brake sensor CHEVROLET IMPALA 2008 9.G Owners Manual

SERVICE A/C (Air Conditioning)
SYSTEM
This message displays when the electronic sensors that
control the air conditioning and heating systems are
no longer working. Have the climate control system
serviced by your dealer/retailer if you notice a drop in
heating and air conditioning efficiency.
SERVICE AIR BAG
This message displays when there is a problem with the
airbag system. Have your vehicle serviced by your
dealer/retailer immediately. SeeAirbag Readiness Light
on page 3-31for more information.
SERVICE BATTERY CHARGING
SYSTEM
This message displays when there is a problem with the
generator and battery charging systems. Driving with
this problem could drain the battery. Turn off all
unnecessary accessories. Stop and turn off the vehicle
as soon as it is safe to do so. Have the electrical
system checked by your dealer/retailer immediately.
SERVICE BRAKE SYSTEM
This message displays when service is required on the
brake system. Have the brake system serviced by
your dealer/retailer as soon as possible. The brake
system warning light also appears on the instrument
panel cluster when this message appears on the DIC.
SeeBrake System Warning Light on page 3-34.
SERVICE POWER STEERING
This message displays when a problem is detected with
the power steering system. When this message is
displayed, you may notice that the effort required to
steer the vehicle increases or feels heavier, but you will
still be able to steer the vehicle. Have your vehicle
serviced by your dealer/retailer immediately.
SERVICE STABILITRAK
If your vehicle has Electronic Stability Control (ESC),
this message displays if there has been a problem
detected with ESC. The ESC/TCS light also appears on
the instrument panel cluster. SeeElectronic Stability
Control on page 4-7for more information.
If this message turns on while you are driving, pull off the
road as soon as possible and stop carefully. Try resetting
the system by turning the ignition off and then back on.
3-56

TPMS Sensor Matching Process
Each TPMS sensor has a unique identication code.
Any time you rotate your vehicle’s tires or replace one or
more of the TPMS sensors, the identication codes
will need to be matched to the new tire/wheel position.
The sensors are matched to the tire/wheel positions
in the following order: driver side front tire, passenger
side front tire, passenger side rear tire, and driver
side rear tire using a TPMS diagnostic tool. See your
dealer/retailer for service.
The TPMS sensors can also be matched to each
tire/wheel position by increasing or decreasing the tire’s
air pressure. If increasing the tire’s air pressure, do
not exceed the maximum ination pressure indicated on
the tire’s sidewall.
To decrease air-pressure out of a tire you can use the
pointed end of the valve cap, a pencil-style air pressure
gage, or a key.
You have two minutes to match the rst tire/wheel
position, and ve minutes overall to match all
four tire/wheel positions. If it takes longer than
two minutes, to match the rst tire and wheel, or
more than ve minutes to match all four tire and wheel
positions the matching process stops and you need
to start over.The TPMS sensor matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the
engine off.
3. Press the Remote Keyless Entry (RKE) transmitter’s
LOCK and UNLOCK buttons at the same time for
approximately ve seconds. The horn sounds twice
to signal the receiver is in relearn mode and
TIRE LEARNING ACTIVE message displays on the
DIC screen.
4. Start with the driver side front tire.
5. Remove the valve cap from the valve cap stem.
Activate the TPMS sensor by increasing or
decreasing the tire’s air pressure for ve seconds,
or until a horn chirp sounds. The horn chirp,
which may take up to 30 seconds to sound,
conrms that the sensor identication code has
been matched to this tire and wheel position.
6. Proceed to the passenger side front tire, and
repeat the procedure in Step 5.
5-67

Fuses Usage
LT PARK Driver’s Side Parking Lamp
RT PARK Passenger’s Side Parking Lamp
FAN 1 Cooling Fan 1
AIRBAG/
DISPLAYAirbag, Display
TRANS Transmission
ECM IGN Engine Control Module, Ignition
RT T/SIG Passenger Side Turn Signal
LT T/SIG Driver Side Turn Signal
DRL 1 Daytime Running Lamps 1
HORN Horn
PWR DROP/
CRANKPower Drop, Crank
STRG WHL Steering Wheel
ECM/TCMEngine Control Module,
Transmission Control Module
RVC SEN Regulated Voltage Control Sensor
RADIO Audio System
FOG LAMPS Fog Lamps
BATT 4 Battery 4
ONSTAR OnStar
®
STRTR Starter
ABS MTR1 Antilock Brake System Motor 1
5-101