Components of the Direct GM TPMS System

TPMS or Tire Pressure Monitoring System is fitted to GM cars to provide a warning of low pressure on any one of four or five tires on the vehicle (five if TPMS fitted in spare).

A TPMS from one of two manufacturers is fitted as part of the valve assembly in all GM cars according to the table shown below.

The sensor measures the pressure and temperature in the tire and transmits this data along with the unique ID of the TPMS to the tire pressure monitor ECU/receiver.

If the TPMS ID is logged with the BCM then it is compared with the placard pressure and if under pressure then a warning light is lit on the dash mounted display.

Please browse our website for more information about Bartec USA LLC and our range of GM TPMS Tools and our professional GM Tire Pressure Monitoring System support, then call toll free 855 877 9732 and speak to one of our team or e-mail us at

Components of the Direct Chrysler TPMS System