Chevrolet Sonic Owner's Manual: TPMS Malfunction Light
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. The malfunction light comes on at each ignition cycle until the problem is corrected. Some of the conditions that can cause this 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 malfunction light should go off after the road tire is replaced and the sensor matching process is performed successfully. See "TPMS Sensor Matching Process" later in this section.
- The TPMS sensor matching process was not done or not completed successfully after rotating the tires. The malfunction light should go off after successfully completing the sensor matching process. See "TPMS Sensor Matching Process" later in this section.
- One or more TPMS sensors are missing or damaged. The malfunction light should go off when the TPMS sensors are installed and the sensor matching process is performed successfully. See your dealer for service.
- Replacement tires or wheels do not match the original equipment tires or wheels. Tires and wheels other than those recommended could prevent the TPMS from functioning properly. See Buying New Tires.
- 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 properly, it cannot detect or signal a low tire condition. See your dealer for service if the TPMS malfunction light comes on and stays on.
Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS is designed
to warn the driver when a low tire pressure condition exists. TPMS sensors are mounted
onto each tire and wheel as ...
TPMS Sensor Matching Process
Each TPMS sensor has a unique identification code. The identification code needs
to be matched to a new tire/wheel position after rotating the tires or replacing
one or more of the TPMS sensors. T ...
Other materials:
Valve Guide Reaming, and Valve and Seat Grinding
Valve Cleaning Procedure
Use soft bristle wire brush to clean any carbon build-up from the valve
head. DO NOT use a wire brush on any part of the valve stem. The valve stem
is chrome plated to provide enhanced wear characteristics. Wire brushing
the stem could remove the chr ...
Brake Drum Refinishing
Special Tools
CH-41013 Rotor Resurfacing Kit
CH-42450-A Wheel Hub Resurfacing Kit
For equivalent regional tools, refer to Special Tools.
Warning: Refer to Brake Dust Warning.
The brake drums do not require refinishing as part of routine brake system
service. Do not refinis ...
Transmission Fluid Level and Condition Check
Removal Procedure
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
Remove the front suspension skid plate, if equipped.
Refer to Drivetrain and Front Suspension Frame Skid
Plate Replacement
Place a basin underneath the vehicle.
Clean away all ...
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