Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Tire Monitoring System: Service and Repair

Low Tire Warning (LTW) System

The Low Tire Warning (LTW) system detects differences in inflation pressures in one or more tires. The system uses the ABS wheel speed sensors to monitor the rolling radius of the wheel and tire assemblies. If a difference in rolling radius is detected, the ABS module illuminates the LTW lamp located in the instrument cluster.

The LTW system must be reset when tire replacement, maintenance, system repair is performed or any time tire pressure is adjusted.

To reset the system, press and hold the "Tire Reset" switch for a minimum of three seconds. The LTW warning lamp will flash 3 times indicating a reset has been initiated.

If the lamp illuminates always reset the tire pressure to specification before resetting the system.m.