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Jeep TSB #08-127-21
2021 Jeep Grand Cherokee
TSB Document:
Affected Component: EXTERIOR LIGHTING:HEADLIGHTS
- Summary
- Flash: Smart Lighting Module Left (SLML) and Smart Lighting Module Right (SLMR) Updates This bulletin involves reprogramming the SLML and SLMR with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: B2834-00 - Right Headlamp Assembly Performance. B2835-00 - Left Headlamp Assembly Performance. Customers may experience one or more of the following:?Service Headlamp? message appears in the information cluster. Headlamps only function on low beam, park lamp and side marker lamps.
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