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2023 Mercedes-Benz GLC 300 lights problems

10 complaints (18% of all complaints for this car).

owner complaints
10
of this car's complaints
18%
crashes
0
recalls
1

Which part fails

Owners did not name a specific part.

At what mileage

Complaints by mileage at the time of the problem.

0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+

Mercedes-Benz GLC 300 lights problems in other years

20162017201820202021202320242025

Specific symptoms reported on the 2023 Mercedes-Benz GLC 300 lights

Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.

Headlights 8

Related recalls

Exterior lighting: headlightsReported June 11, 2025 · 127 vehicles affected
What is wrong
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023 GLC 300 and GLC 300 4MATIC vehicles. The headlights are missing adjustment prevention caps, which can allow the headlights to be improperly adjusted. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Risk
Improperly adjusted headlights can reduce visibility, increasing the risk of a crash.
Remedy
Dealers will inspect the headlights for sealing caps and install caps as necessary, free of charge. Owner notification letters were mailed July 18, 2025. Owners may contact MBUSA customer service at 1‑800‑367‑6372. MBUSA's number for this recall is 2025060005.

Recall number 25V365000 · Recall details

What 2023 Mercedes-Benz GLC 300 owners say

Most recent owner complaints, unedited.

Filed Aug 19, 2024 · Electrical, Lights · TX

Second time the rear left tail light not working properly. The parking light stay on after turning vehicle off at time it turns off. The light assembly was replaced by dealership less than a year ago. The light assembly was defective according to the dealership vehicle was purchase 10 prior.

Filed Jan 30, 2024 · Engine, Fuel system · MN

I have taken the delivery of this car on May 2023 and has been having many issues including but not limited to rear seatbelt malfunction that needed replacement. Recent major issue is constant 'check engine light on' for various issues. Below is the 'F' and 'I' items from 'initial quick test log' as of [XXX] and also attaching detail log file. No resolution or action has been taken after several trips to the dealership in past couple of weeks and not being able to drive due to safety concern. N127 - Control unit "Drivetrain" (PTCU) -F- N73/3*1 - Electronic ignition lock - Central gateway (EZS) -I- E1n9 - Left headlamp (SG-SW-L) -I- E1n15 - Light source module control unit front left (LSM-CU-VL) -f- E2n15 - Light source module control unit front right (LSM-CU-VR) -f- E1n14 - Digital headlamp control unit front left (DHLS-CU-VL) -f- E2n14 - Digital headlamp control unit front right (DHLS-CU-VR) -f- A66 - Battery module (48 V battery) (BM48) -F B29/13 - Left rear short range radar (NBR-LR) -I- B29/14 - Right rear short range radar (NBR-RR) -I- A40/11 - Multifunction camera (MFK) -I- N62/3 - Parking system (PARK) -I- A40/8 - Central display (ZAN) -f- N133/1 - Instrument cluster (IC) -f- INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 3, 2023 · Lights · OR

I am having the following issues with my digital lights on my 2023 GLC. Dealer states normal. It is unsafe and should have a recall/software update. VIN: [XXX] Dangerously inadequate forward visibility at night on low beam/inadequate beam pattern. Level of illumination not at legal minimum of visibility on low beam/ no long distance illumination yet creates excessive illumination of retroreflective signs creating distraction. Adaptive Driving Beam not functional. Extremely limited beam pattern on low beam. Topographic/dynamic leveling does not adjust beam so you are blind going down hill/up hill at night. Poor image/contrast for projection/symbols. Only triangle works. Cornering light not functional. Cannot see sides when cornering at night. Mercedes complaint reference # [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 19, 2023 · Lights · OH

DIGITAL LIGHT low beam inadequate distance for safe driving on unlit roadway. Low beam has unnecessary blacked out areas causing distraction. Low beams too low, especially driving down hills. Adaptive high beams revert to low beam without any apparent light to trigger camera/sensor. Dealer states they are all the same, nothing they can do, call MB USA. MB USA gave me a case number but do no seem interested in solving the issue

Filed Aug 16, 2023 · Lights · OR

The digital lights are defective for the US market. The low beam doesn’t provide any light for night driving farther than x feet. It also has jagged edges across the beam that greatly effect night visibility. The adaptive part of the system doesn’t provide adequate lighting in the dark around curves, the car states it has cornering lamps but it does not/ is not activated for us market. When it’s completely dark, I cannot see the front sides for turning, the lights are a serious safety hazard. The headlamps also get condensation when wet and fog up and effect visibility where you cannot drive at night. The leveling sensor failed and subsequently rendered the auto high beam and adaptive lighting system inoperative. The car doesn’t do any of the listed safety projections it’s supposed o do, such as spotlight. One time it worked but when tested it was never able to see it again after a software update. Serious safety concerns regarding the over the air updates and advertised functionality vs real life performance

Filed Aug 12, 2023 · Lights · OR

Check Right low beam error messsage. Beam decreased light output, lightbulb out. Adaptive high beam not working and neither is the intelligent light system/active lights.

Filed Aug 5, 2023 · Driver assistance, Electrical · OR

The moon roof will not close. There is also a sloshing sound of water in an unidentified area, it has not rained. The blind spot monitor function of the digital light projection works intermittently and is barely visible marking on the roadway. The exit assist also does not activate the ambient lighting when opening door and car Is approaching in the travel Lane. Digital lights have jagged output light beam and they are the illuminating the roadway as advertised.

Filed Aug 5, 2023 · Electrical, Lights · OR

Digital Light Inactivean High Beam Assist messages Also, when you engage the inoperative warning the actuates blinker it off [brights/high blinds beams even when drivers. auto adaptive setting is day with lights off see the high beam blue light on with headlight malfunctions vehicle 248595-Connected LEst sensor FaultY batterse causing, adaptive found fault C151E29 currentiy present charger invalid performed SDS for • f 0.00. Performed guided test, found vaLue Rear level value of 8149 Unplugged sensor • спескеа Ins no corrosion or loose pins. With different fault for from front left unevagged, was stored "no signal" • sensor. Plugged sensor back in, and sensor started reading correctly. Available Ordered new sensor; Customer to return when part Service Digital Light Inactiveand High Beam Assist inop erative . At this time.

Filed Aug 5, 2023 · Electrical, Engine · OR

Unexpectedly and without any indication or warning, at [XXX] on [XXX] I experienced multiple system failures/engine light/critical warning lights/. Transmission error message states do not shift into gear, take for service. Engine check light on. Car would not start, car was unable to be put into park. Door alarm for transmission not in park was alarming audible. After car shut off and attempt to put into park the car would not engage into park and the car electronics malfunctioned, would not stop alarming despite off, multiple error messages, including traction control inoperative, blind spot inoperative, digital light inoperative, check the 48V batter Error, and other messages toggling on. Dealership Bergeron Mercedes made aware of problem on 8/04 And was told no appointments or lands car available and to drop off Monday sans appt, name on wait list. VIN [XXX] . This is a common problem on all of the forums regarding this first what new models hear 23 releases. I was unable to put the car into park and the parking brake could not hold in place/trusted. Also, the digital light malfunctioned and high beam assist and digital light. Became inoperative due to failed wheel level sensor. Car has less than than 5K miles /less than 3 months old. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 1, 2023 · Electrical, Engine · WA

Sunday, June 25, when I was driving the car on the road, the engine shut off and the car stopped running. 3 warning lights show on screen: engine light; 48v Battery Service Required; 12v Battery service required. I used the break to park the car on the roadside after that. I tried many times to restart the car, Waited over one hour and 40 minutes it finally started again, the engine warning light was still on until the second day morning, and I was able to take pics as evident. 1. What component or system failed or malfunctioned, and is it available for inspection upon request? Yes, but on the second day, the MB service dep told me that the car was having a system update (while I was driving the car and it turned off the engine by doing that) 2. How was your safety or the safety of others put at risk? I was still driving with 40m/h+ on the road, my car suddenly having a malfunction. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? No, I called MB USA, they started a purchase buyback application, but still let me drive that car. 4. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? No. The 3 warning lamps showed when the engine shut off while I was driving. There was no other symptoms of the problem prior to the failure. The car is new, 2023 GLC 300, the dealership is AutoNation, only has 2400 miles on it do far, one month only so far.

Questions about the 2023 Mercedes-Benz GLC 300 lights

Does the 2023 Mercedes-Benz GLC 300 have lights problems?

Owners have filed 10 complaints about the lights of the 2023 Mercedes-Benz GLC 300, 18% of all its complaints.

At what mileage do 2023 Mercedes-Benz GLC 300 lights problems start?

Not enough complaints include the mileage to tell.

Was there a recall on the 2023 Mercedes-Benz GLC 300 lights?

Yes, 1 recall: 25V365000. Check your VIN to see if your car still needs the free repair.

What year does the Mercedes-Benz GLC 300 have the most lights problems?

The Mercedes-Benz GLC 300 model years with the most lights complaints are 2021 (13 complaints) and 2023 (10 complaints).

Other 2023 Mercedes-Benz GLC 300 problems

Electrical 30Engine 15Driver assistance 11Brakes 5Fuel system 5Body 4Transmission 3Steering 2Acceleration 1Visibility 1

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