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Service bulletin LI-54-21

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 id10033072
Published by NHTSA2010-06-30
Manufacturer's numberLI-54-21
Manufacturer's date2009-12-17
NHTSA componentEXTERIOR LIGHTING:FOG LIGHTS; EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH

NHTSA's summary

XENTRY: EXTERIOR LIGHTS CONSTANTLY ON. POSSIBLE COMPONENTS: LOW BEAMS; FRONT FOG LAMP; HIGH BEAMS; WASHER FLUID PUMP AND THE HEADLAMP CLEANING SYSTEM ARE ALSO POTENTIALLY AFFECTED. HARDWARE FAULT IN DRIVER SIDE SAM. MODEL 204. NO MODEL YEARS LISTED. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Lighting, Headlights

Vehicles listed
MERCEDES BENZ C3002008 to 2009
MERCEDES BENZ C3502005 to 2008
MERCEDES BENZ C632006 to 2010
MERCEDES BENZ GLK3502009
MERCEDES-BENZ C3002010
MERCEDES-BENZ GLK3502005 to 2008
MERCEDES-BENZ GLK3502010

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