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April 1, 2022 Service bulletin

Complaint Fault message (yellow) in instrument cluster and TPM warning lamp

Mercedes-Benz technical service bulletin LI40.15-P-074659 for 2019-2022 Mercedes-Benz GLC 300, 2020-2021 Mercedes-Benz CLA250 and 2020-2022 Mercedes-Benz GLA 250 and others.

Bulletin number
LI40.15-P-074659
Component
Electrical system
Summary
Complaint Fault message (yellow) in instrument cluster and TPM warning lamp. Individual or all tire pressure sensors are not recognized. Tire pressure monitoring system nonfunctional / temporarily unavailable. Cause Tires with excessively-large radio signal attenuation interfere with transmission of the tire pressure sensors. Remedy Check if one of the following tires is installed: If one of the tires listed above is installed with the corresponding DOT number, replace this tire. In accordance with the Warranty Manual, the costs for the tire shall be settled directly with the tire manufacturer.

Owners of these vehicles have filed 118 complaints in the electrical category.

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