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TPMS Malfunction Light and Message
The TPMS will not function properly if one or more of the
TPMS sensors are missing or inoperable. When the
system detects a malfunction, the low tire warning light
flashes for about one minute and then stays on for the
remainder of the ignition cycle. A DIC warning message
is also displayed. The low tire warning light and DIC
warning message come on at each ignition cycle until
the problem is corrected. Some of the conditions that
can cause the malfunction light and DIC message to
come on are:
•One of the road tires has been replaced with the
spare tire. The spare tire does not have a TPMS
sensor. The TPMS malfunction light and DIC
message should go off once you re-install the
road tire containing the TPMS sensor.
•The TPMS sensor matching process was started but
not completed or not completed successfully after
rotating the vehicle’s tires. The DIC message and
TPMS malfunction light should go off once the TPMS
sensor matching process is performed successfully.
See “TPMS Sensor Matching Process” later in this
section.
•One or more TPMS sensors are missing or
damaged. The DIC message and the TPMS
malfunction light should go off when the TPMS
sensors are installed and the sensor matching
process is performed successfully. See your
dealer/retailer for service.
•Replacement tires or wheels do not match your
vehicle’s original equipment tires or wheels. Tires
and wheels other than those recommended for your
vehicle could prevent the TPMS from functioning
properly. SeeBuying New Tires on page 6-75.
•Operating electronic devices or being near facilities
using radio wave frequencies similar to the TPMS
could cause the TPMS sensors to malfunction.
If the TPMS is not functioning it cannot detect or
signal a low tire condition. See your dealer/retailer for
service if the TPMS malfunction light and DIC message
comes on and stays on.
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TPMS Sensor Matching Process
Each TPMS sensor has a unique identification code.
Any time you replace one or more of the TPMS sensors
or rotate the vehicle’s tires, the identification codes need
to be matched to the new tire/wheel location. The sensors
are matched, to the tire/wheel locations, 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. When increasing the tire’s pressure,
do not exceed the maximum inflation pressure
indicated on the tire’s sidewall. To decrease the tire’s
air-pressure use the pointed end of the valve cap,
a pencil-style air pressure gage, or a key.
You have two minutes to match each tire and wheel
position. If it takes longer than two minutes to match
any tire and wheel position, the matching process
stops and you need to start over.
TPMS Matching Process for Vehicles
with Remote Keyless Entry (RKE)
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the
engine off.
3. Press and hold the Remote Keyless Entry (RKE)
transmitter’s lock and unlock buttons, at the same
time, for about five seconds to start the TPMS learn
mode. The horn sounds twice indicating the TPMS
receiver is ready and in learn mode.
4. Start with the driver side front tire. The driver side
front turn signal also comes on to indicate that
corner’s sensor is ready to be learned.
5. Remove the valve cap from the tire’s valve stem.
Activate the TPMS sensor by increasing or
decreasing the tire’s air pressure for about
eight seconds. The horn chirp, can take up to
30 seconds to sound. It chirps one time and then
all the turn signals flash one time to confirm the
sensor identification code has been matched to
the tire/wheel position.
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6. The passenger side front turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the passenger side front tire and
repeat the procedure in Step 5.
7. The passenger side rear turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the passenger side rear tire and
repeat the procedure in Step 5.
8. The driver side rear turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the driver side rear tire, and repeat
the procedure in Step 5.
9. After hearing the single horn chirp for the driver
side rear tire, two additional horn chirps sound
to indicate the tire learning process is done.
Turn the ignition switch to LOCK/OFF.
If no tires are learned after entering the TPMS learn
mode, or if communication with the receiver stops, or
if the time limit has expired, turn the ignition switch to
LOCK/OFF and start over beginning with Step 2.
10. Set all four tires to the recommended air pressure
level as indicated on the Tire and Loading
Information label.
11. Put the valve caps back on the valve stems.TPMS Matching Process for Vehicles
without Remote Keyless Entry (RKE)
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the
engine off.
3. Using the Driver Information Center (DIC), press
the INFO and Set/Reset buttons at the same time
for about one second. Then press and release
the INFO button until the TIRE LEARN? message
displays.
4. Press and hold the Set/Reset DIC button for
approximately three seconds to start the TPMS
learn mode. The horn sounds twice to indicate the
TPMS receiver is ready and the TIRE LEARN ON
message displays. The driver side front turn signal
also comes on to indicate that corner sensor is ready
to be learned.
5. Start with the driver side front tire.
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6. Remove the valve cap from the tire’s valve stem.
Activate the TPMS sensor by increasing or
decreasing the tire’s air pressure for about
eight seconds. The horn chirp, can take up to
30 seconds to sound. It chirps one time and then
all the turn signals flash one time to confirm the
sensor identification code has been matched to
the tire/wheel position.
7. The passenger side front turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the passenger side front tire and
repeat the procedure in Step 6.
8. The passenger side rear turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the passenger side rear tire and
repeat the procedure in Step 6.
9. The driver side rear turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the driver side rear tire, and repeat
the procedure in Step 6.10. After hearing the single horn chirp for the driver
side rear tire, two additional horn chirps sound
to indicate the tire learning process is done.
The LEARN COMPLETE message displays if
all four tire positions are learned. Turn the ignition
switch to LOCK/OFF.
If no tires are learned after entering the TPMS learn
mode, or if communication with the receiver stops,
or if the time limit has expired, the TIRE LEARN?
message displays on the DIC. Turn the ignition
switch to LOCK/OFF and start over beginning
with Step 2.
11. Set all four tires to the recommended air pressure
level as indicated on the Tire and Loading
Information label.
12. Put the valve caps back on the valve stems.
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If you need to replace any of your wheels, wheel bolts,
wheel nuts, or Tire Pressure Monitor System (TPMS)
sensors, replace them only with new GM original
equipment parts. This way, you will be sure to have the
right wheel, wheel bolts, wheel nuts, and TPMS sensors
for your vehicle.
{WARNING:
Using the wrong replacement wheels, wheel bolts,
or wheel nuts on your vehicle can be dangerous.
It could affect the braking and handling of your
vehicle, make your tires lose air and make you
lose control. You could have a collision in which
you or others could be injured. Always use the
correct wheel, wheel bolts, and wheel nuts for
replacement.Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance, and tire or tire chain
clearance to the body and chassis.
SeeChanging a Flat Tire on page 6-90for more
information.
Used Replacement Wheels
{WARNING:
Putting a used wheel on the vehicle is dangerous.
You cannot know how it has been used or how far it
has been driven. It could fail suddenly and cause a
crash. If you have to replace a wheel, use a new
GM original equipment wheel.
6-80
Page 386 of 448
Fuses Usage
EPS Electronic Power Steering
FUSE PULLER Fuse Puller
HVAC
BLOWERHeating Ventilation Air Conditioning
Blower Switch
HVAC
BLOWER HIGHHeating Ventilation Air Conditioning
Blower - High Speed Relay
HVAC CTRL
(BATT)Heating Ventilation Air Conditioning
Control Diagnostic Link Connector
(Battery)
HVAC CTRL
(IGN)Heating Ventilation Air Conditioning
Control (Ignition)
IGN SENSOR Ignition Switch
INTERIOR
LIGHTSInterior Lamps
NOT
INSTALLEDNot Used
NOT
INSTALLEDNot UsedFuses Usage
NOT
INSTALLEDNot Used
NOT
INSTALLEDNot Used
ONSTAR OnStar
®
PEDAL Not Used
POWER
MIRRORSPower Mirrors
POWER
WINDOWSPower Windows (Sedan)
RADIO Audio System
ROOF/HEAT
SEATSunroof, Heated Seat, Power
Windows (Coupe, Retractable
Hardtop), Automatic Dimming
Rearview Mirror, Compass
RUN/CRANKCruise Control Switch, Passenger
Airbag Status Indicator, DSC Switch
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Page 388 of 448
Fuses Usage
1 Air Conditioner Clutch
2 Electronic Throttle Control
3 Not UsedFuses Usage
4Transmission Control Module
Ignition 1
5 Mass Airflow Sensor (LY7)
6 Emission
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Fuses Usage
7 Left Headlamp Low Beam
8 Horn
9 Right Headlamp Low Beam
10 Front Fog Lamps
11 Left Headlamp High Beam
12 Right Headlamp High Beam
13 Engine Control Module (Battery)
14 Windshield Wiper
15 Antilock Brake System (IGN 1)
16 Engine Control Module (IGN 1)
17 Cooling Fan 1
18 Cooling Fan 2
19Run Relay, Heating, Ventilation,
Air Conditioning Blower
20 Body Control Module 1
21 Body Control Module Run/Crank
22 Rear Electrical Center 1
23 Rear Electrical Center 2
24 Antilock Brake System
25 Body Control Module 2Fuses Usage
26 Starter
41 Electric Power Steering
42Transmission Control Module
Battery
43Ignition Module (LE5, LE9, LZ4,
LZE, LZ9), Odd Cylinder
Injectors/Ignition Coils (LY7)
44Injectors (LE5, LE9, LZ4, LZE, LZ9),
Even Cylinder Injectors/Ignition
Coils (LY7)
45Rear Oxygen Sensors
(LZ4, LZE, LZ9, LY7)
46 Daytime Running Lamps
47 Center High-Mounted Stoplamp
50Front Power Windows Coupe/
Retractable Hardtop
51 Not Used
52 AIR Solenoid
54 Regulated Voltage Control
55 Antilock Brake System (Battery)
6-121