There are 1 stored owner reports matching the lighting leading-label group for the 2018 Mercedes-Benz GLS-Class in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)MY GLS-450 HAS THE 'LIGHTING PACKAGE' WITH ACTIVE LED HEADLAMPS INCLUDING 'CORNER-ILLUMINATING FRONT HEADLAMPS, ACTIATED (ACTIVATED SPELLED WRONG) BY THE STEERING WHEEL OR TURN-SIGNAL USE, BRIGHTEN YOUR WAY INTO DRIVEWAYS AND GARAGES.' AS I LIVE IN A VERY DARK RURAL AREA, I ORDERED THESE LIGHTS. I SOON DISCOVERED THAT THE LEDS, WHILE SUPERIOR FOR FORWARD LIGHTING,PROVIDE LITTLE OR NO SIDE LIGHTING FOR THE DRIVER TO SEE WHEN TURNING ONTO DIVIDED HIGHWAYS WITH DARK ISLANDS, ETC. THIS IS BECAUSE THE LEDS ARE VERY STRAIGHT SHOOTING FORWARD. BUT THIS LED LIGHTING PACKAGE WAS SUPPOSED TO HAVE "CORNERING LIGHTS" ACTUATED BY TURN SIGNAL OR LOW SPEED WHILE TURNING WHICH SOLVES THIS PROBLEM. I HAD ALREADY EXPERIENCED THE ADVANTAGE OF THESE 'CORNERING LIGHTS' ON MY WIFE'S 2014 MERCEDES-BENZ GLK-250. BUT MY VEHICLE IS MISSING THE 'CORNERING LIGHT' FEATURE. IN CHECKING WITH THE DEALER AND MBUSA, THEY SAY THIS IS BECAUSE NHTSA WILL NOT ALLOW "CORNERING LIGHTS" ON THE GLS-450 BECAUSE OF THE HEIGHT OF THE HEADLIGHT UNIT ABOVE THE GROUND. COULD THIS BE TRUE? LACK OF CORNERING LIGHTS IN THE ACTIVE LED HEADLIGHTS MAKES CORNERING IN THIS VEHICLE UNSAFE AT NIGHT, AND THE LAMP HEIGHT RULE, IF THERE IS ONE, SHOULD BE MODIFIED AND RECALL ISSUED FOR GLS 450 VEHICLES WITH DEFECTIVE ACTIVE LED HEADLIGHTS MISSING THE CORNERING LIGHT FEATURE THEY ADVERTISE AS INCLUDED (SEE MBUSA.COM BUILD YOUR GLS450, LIGHTING PACKAGES). PLEASE TAKE ACTION ON THIS AND LET ME KNOW YOUR DECISION. THANK YOU!
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.