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Service bulletin LI91.30-P-073902

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10207205
Published by NHTSA2022-02-04
Manufacturer's numberLI91.30-P-073902
Manufacturer's date2022-01-04
NHTSA componentELECTRICAL SYSTEM; SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER; SEATS

NHTSA's summary

Complaint Seat heating on driver's seat and front passenger seat nonfunctional. The LEDs on the switches for the seat heating illuminate, but the seat heating mats do not get warm. Cause Faulty SCN coding of rear SAM. Remedy • Perform SCN coding of rear SAM (BC_R). • Commission seat heating control unit.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Seats

Vehicles listed
MERCEDES-BENZ C 3002017 to 2021
MERCEDES-BENZ C3002015 to 2016
MERCEDES-BENZ GLC 3002018 to 2022
MERCEDES-BENZ GLC3002016 to 2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.