Every record we hold for this vehicle, as plain tables, with nothing added. The consumer page shows the same records with the maintenance schedule, price ranges and nearby shops around them.
vehicle
2023 / mercedes-benz / glc-class
known issues
7 clusters (reviewed 2026-08-20)
complaints
65 on file (2023-06-05 → 2026-07-24)
recalls
0
investigations
0
fars
1 occupant deaths, crash years 2010-2024 (legacy-code)
12V and 48V electrical system failures and no-startsELECTRICAL SYSTEM18 complaints2023-06 → 2026-03glc300-2023-electrical-12v-48v-failure
11722368 I purchased a brand new GLC 300 on May 25, 2023. By June 2, 2023 I was already stranded due to a 12V battery electrical system failure. Since then I have been stranded 8 total times and the vehicle has been in the service department 14+ times for repeated electrical issues
11535976 The 2023 GLC300 would not start. The internal alarms kept going off, the push-start/stop would not respond. The vehicle was acting like it was being stolen, this lasted for 75 to 80 minutes. The display said 12V On-Board Electrical System Service Required and Blind Spot Assist…
11525409 When starting the vehicle, all the lights and alarms have come on and vehicle is not drivable. This has happened 4 times. 3/4 times the vehicle has started after an hour or two. One time I have had to have it towed in. I bought this car on April 27th
11747647 My 2023 GLC300 suffered a severe, unprovoked emergency brake deployment in traffic, nearly causing a pileup. on [XXX]. The car has only 14,500 miles and has a chronic history of dangerous, unprovoked Active Brake Assist deployments
11576799 On [XXX], I was driving at 45MPH on a two-lane state road. There was no traffic within 1/4 -1/2 mile of me on that road. There were no guardrails and the road was clear - no birds, animals, people, or construction. For no reason, the car beeped twice and automatically slammed…
11618304 Most significant issue related to false collision avoidance incidents on two occasions that resulted in dangerous situations and extreme stress on the occupants. First occurrence was on July 12, 2024. Driving approximately 40 mph on two lane road near a school that was not in…
Power liftgate closing without inputSTRUCTURE:BODY:HATCHBACK/LIFTGATE8 complaints2023-07 → 2025-09glc300-2023-power-liftgate-closing
11580776 The contact stated that while the vehicle was parked, and the contact and his wife were removing groceries from the rear of the vehicle, the tailgate was independently lifted due to the design of the keyless entry feature. The contact and his wife continued to remove items from…
11591232 When working in the rear cargo area, the door comes down without warning and does not break when it meets resistance trapping me between the body of the car and the descending door. A great deal of physical pressure must be employed in trying to get it to reverse direction
11653863 Rear Hatch hands free system - closes unexpectedly while loading or unloading car without using feet to trigger system. Hatch will close down and trap driver in the rear, causing bruising on driver and requiring assistance to push hatch back up
Panoramic sunroof glass spontaneous shatteringUNKNOWN OR OTHER3 complaints2024-12 → 2026-04glc300-2023-sunroof-shattering
11733932 I purchased a new Mercedes Benz GLC300 2023. Last month, my friend and I were driving on I75 in Florida when we heard what sounded like a loud boom or gunshot. We quickly discovered that my sunroof had exploded. The sunroof was closed, and fortunately so was the sunshade
11629650 The sunroof glass blasted and shattered during a drive on an interstate highway. I was driving normally when I heard a loud sound like a tire burst or gunshot. Initially, I thought that my tire had busted. I took an exit and stopped to inspect the tires. I found them to be…
11710584 The glass panel between the windshield and the sun roof shattered spontaneously
Digital light system inadequate beam output and failuresEXTERIOR LIGHTING6 complaints2023-08 → 2024-08glc300-2023-digital-headlight-deficiency
11538813 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…
11542331 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.…
11539552 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…
11732594 The system worked except occasionally it would change the indicated permissible speed limit on the instrument display when there is no corresponding roadside speed limit sign and the permissible speed limit for that stretch of roadway is unchanged. When this happens, suddenly…
11538722 I had to disable the traffic sign recognition feature because I was on I-95 in Maryland where the posted speed limit was 65. The car abruptly slowed me down to 35 because it saw an exit sign speed limit but I was not on the exit. I was lucky the car behind me didn't hit me
Check engine light and 48V mild hybrid system faultsENGINE, ELECTRICAL SYSTEM7 complaints2023-08 → 2024-01glc300-2023-engine-check-light-48v
11566824 The check engine light has been on since the second week of ownership. The reason I’m submitting this report is because it’s been into warranty service 4 times. Each time Mercedes Benz says that it is a known issue affecting ALL GLC300 models. They also indicate that it is a…
11569863 Vehicle sputter and coolant malfunction and engine light came on while driving ( 12-26-23) Took to dealer for some “ update”. After a few weeks of driving the vehicle sputter again and engine light came on again on the (1-19-2024 ) Drove home turned off , loud noises came from…
11568277 Check engine light on, according to Mercedes Benz problem related to 48 V mild hybrid,I took twice car to the dealership ,they can’t reset check engine lights GLC 300 2023 With 3500 miles
FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road.
Cite this
Derived data is CC BY 4.0. Link back to the page you used. Text and BibTeX below.
Wrench.Pro (2026). 2023 Mercedes-Benz GLC-Class vehicle data [dataset]. https://www.wrench.pro/data/vehicles/2023/mercedes-benz/glc-class
@misc{wrenchpro_2023_mercedes_benz_glc_class_2026,
author = {Wrench.Pro},
title = {Wrench.Pro vehicle data: 2023 Mercedes-Benz GLC-Class},
year = {2026},
howpublished = {\url{https://www.wrench.pro/data/vehicles/2023/mercedes-benz/glc-class}},
note = {Derived from NHTSA public records. CC BY 4.0.}
}
