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2023 Mercedes-Benz GLC-Class problems, recalls and owner complaints
What the 2023 Mercedes-Benz GLC-Class has been recalled for and what owners report, from official government data. Updated October 25, 2026.
- 0safety recalls
- 65owner complaints
- 2crash reports
- 0fire reports
- 4injuries reported
65 complaints, against an average of 73 for the other 10 Mercedes-Benz GLC-Class model years.
Every Mercedes-Benz GLC-Class model year with its number of owner complaints. Pick a year to compare.
What goes wrong with the 2023 Mercedes-Benz GLC-Class?
The components named most often in the 65 owner complaints. One complaint can name several, so the shares can add up to more than 100%.
What symptoms do 2023 Mercedes-Benz GLC-Class owners describe?
Found by reading the text of all 65 owner complaints. Tap a symptom for the answer, a real owner quote and any related recall.
- Why is the check engine light on in my 2023 Mercedes-Benz GLC-Class?13 owners · 20%
- Why won't my 2023 Mercedes-Benz GLC-Class start?9 owners · 13.8%
- Why does the battery keep dying on my 2023 Mercedes-Benz GLC-Class?7 owners · 10.8%
- Can the sunroof on the 2023 Mercedes-Benz GLC-Class shatter or fail?4 owners · 6.2%
- Why does my 2023 Mercedes-Benz GLC-Class stall, lose power or shut off while driving?3 owners · 4.6%
- Why does the seat belt not latch or retract properly in my 2023 Mercedes-Benz GLC-Class?3 owners · 4.6%
Has the 2023 Mercedes-Benz GLC-Class been recalled?
NHTSA lists no safety recalls for the 2023 Mercedes-Benz GLC-Class as of October 25, 2026. Recalls can be issued at any time, so check your VIN before you rely on this.
Is the 2023 Mercedes-Benz GLC-Class recalled in the UK or Europe?
Recalls issued by the UK's DVSA and through the EU's Safety Gate system that cover this model and build period. European models can differ from U.S. ones, and "years estimated" means the recall gave no build dates, so confirm your own car with your registration or VIN.
UK DVSABolting of Steering Coupling
Risk: Mercedes-Benz AG has determined that on certain C-Class (206 platform) GLC (254 platform) and EQE (295 platform) vehicles the bolting of the steering coupling might not meet specifications.
Fix: As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will rework the bolting of the steering coupling on the affected vehicles.
UK DVSASRPC2501 - Processor Starter/GeneratorProcessor Starter/Generator
Risk: Mercedes-Benz has determined that on certain AMG GT Coupe (192 platform)S-Class (223 platform) SL (232 platform) GLC (254 platform) and AMG GT 4-doorsCoupe (290 platform) vehicles with hybrid powertrain the processor of the control unit of the high-voltage starter generator might experience sporadic overload.
Fix: As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will update the software of the high-voltage starter generator on the affected vehicles.
UK DVSASRPC2419 Misfire Detection M264
Risk: The software of the engine control unit might not meet specifications regarding misfire detection.
Fix: Mercedes-Benz AG via its Mercedes-Benz service partners will update the software of the engine control unit on the affected vehicles.
UK DVSASystem protection
Risk: On certain vehicles some 80A fuses installed might not meet requirements.
Fix: Replace the respective main fuse boxes on the affected vehicles.
UK DVSAOn affected vehicles the bolting of the high-pressure fuel pump might not meet specifications.
Risk: On affected vehicles the bolting of the high-pressure fuel pump might not meet specifications.
Fix: Replace the high-pressure fuel pump.
UK DVSAOn affected vehicles the bonding of the front rear and fixed side windows might not meet specifications.
Risk: On affected vehicles the bonding of the front rear and fixed side windows might not meet specifications.
Fix: Replace the windows.
UK DVSAThe socket for the towing device in the front crossmember might not meet specifications
Risk: On affected vehicles the socket for the front towing device might not meet specifications.
Fix: Check the towing device and replace the front cross member if necessary.
UK DVSAOn affected vehicles the length of the transmission wiring harness might not meet specifications.
Risk: On affected vehicles the length of the transmission wiring harness might not meet specifications.
Fix: Check transmission wiring harness routing and rework if necessary.
UK DVSAOn affected vehicles the fuel pump impeller might not meet specifications and may deform.
Risk: On affected vehicles the fuel pump impeller might not meet specifications and may deform.
Fix: Replace the fuel pump module.
UK DVSAOn affected vehicles the wheel and brake bleed bolts might not have been tightened with the required torque.
Risk: On affected vehicles the wheel and brake bleed bolts might not have been tightened with the required torque.
Fix: Check the wheel and brake bleed bolts and tighten to the correct torque.
UK DVSAOn affected vehicles the stabilisation of the footwell cover in the area of the accelerator pedal might be insufficient.
Risk: On affected vehicles the stabilisation of the footwell cover in the area of the accelerator pedal might be insufficient.
Fix: Rework the footwell cover.
UK DVSAThe support of the windowbag in the area of the B-pillar might not meet specifications.
Risk: The support of the window airbag in the B-pillar might not meet specifications.
Fix: Check the window airbag support and replace it if necessary
UK DVSAThe wiring harness at the b-pillar might be damaged.
Risk: The mounting of an acoustic pad on the B-pillar might not meet specifications.
Fix: Remove the acoustic pads and check the seat belt retractors and replace if necessary.
EU Safety GateA manufacturing defect in the steering coupling may lead to loosen mechanical connection between the steering wheel and the steering box,…A manufacturing defect in the steering coupling may lead to loosen mechanical connection between the steering wheel and the steering box, leading to a loss of steering and increasing the risk of an accident.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateAn improperly reworked fuse box may lead to breaks in contact or incorrect fuse ratings.Therefore, systems connected to the fuse could fail, including the vehicle losing drive without warning as well as the restraint systems or the instrument cluster being compromised. This could lead to injury or fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateCertain bolt connections in the dashboard area may not be tightened to the correct torque.This can impair the restraining effect of the driver airbag, passenger airbag or knee airbag. In the event of an accident involving airbag deployment, this increases the risk of injury to the vehicle's occupants. Moreover, if the bolting for the 12V electric auxiliary heater connections is affected, the vehicle can catch fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateA fuse may be faulty, which can lead to engine failure or impairment of the restraint functions and instrument cluster.This increases the risk of an accident, injuries and fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateA bolt on the high-pressure pump may be faulty, which could impair the sealing function between the high-pressure pump and the tandem oil…A bolt on the high-pressure pump may be faulty, which could impair the sealing function between the high-pressure pump and the tandem oil pump. As a result, oil and fuel may leak onto the road, posing a risk to the following traffic. In addition, oil and fuel could come into contact with hot engine parts, increasing the risk of fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe windows may not be properly attached and can fall out, creating a risk of an accident.The front airbag may not work as intended if the windscreen comes loose, increasing the risk of injury.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe front towing eye bolt/screw may detach, creating a risk of an accident.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe trailer coupling device may not be able to withstand the load.The coupling armature could detach from the vehicle, creating a risk of an accidents/injuries.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe wheel and/or brake vent screws may not be tightened with sufficient torque and can come off completely when the vehicle is in motion.This could lead to brake fluid leaks and impaired braking performance, causing a loss of driving stability and creating a risk of an accident.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe B pillar wiring harness may be damaged, which can lead to a short-circuit that causes a fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe curtain airbag support at the B-pillar level may be defective and not deploy properly in the event of an accident.The B-pillar cladding could detach, thus increasing the risk of injury to vehicle occupants in the event of an accident.
Measures: Type of economic operator taking notified measure(s): Importer; Category of measure(s): Recall of the product from end users; Date of entry into force: 29/09/2022
What do 2023 Mercedes-Benz GLC-Class owners report?
12 of the 65 complaints, the most recent for the most-reported components, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.
The contact owns a 2023 Mercedes-Benz GLC 300 4MATIC. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the brake pedal felt as if it had released, and the vehicle failed to stop as needed. The contact stated that the failure was a recurring failure. The dealer was contacted but could not duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 39,000.
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. It broke down twice in its first month of ownership for other reasons, slammed on the brakes during a left-hand turn last year, nearly causing an accident and on [XXX] executed a violent, full-lock emergency stop from 25mph in light traffic with no obstacles in sight, nearly causing a multi-car pileup and putting me thru the windshield. The car was towed to MB of…
The issue is regarding the “Traffic Sign Assist” (Owner’s Manual page 221) feature of the Adaptive Cruise Control System. Vehicle will be made available if requested. The function of the "Traffic Sign Assist" is to monitor roadside "Speed Limit" signs and the cruise control will increase or decrease speed to stay within the permissible legal speed limit. 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…
The contact owns a 2023 Mercedes-Benz GLC300. The contact stated that while driving at an undisclosed speed, the speed limit warning system failed to function as intended. The contact stated that while driving 60 MPH, the Heads-up Display (HUD) illuminated a red light and an unknown message about driving too slowly was displayed. The contact stated that the red light illuminated and flashed intermittently. The vehicle was taken to the dealer, and the contact was informed that the failure was common with the vehicle. The vehicle was not repaired. The contact stated that the failure persisted…
There are two issues 1) Unsure of the exact date, but about a year or two ago we were driving our car and the car's automatic break system went into effect on a typically busy, 3 lane road despite there not being any cars in front of our vehicle. We took it into the dealership, who confirmed the issue and told us that sometimes the automatic brake mis-identifies the metal plates in the roads to be vehicles. Had there been a car driving behind us at the time this was happening, it could have been a major accident as the speed limit on that road was 45mph. Additionally we had our [XXX] in the…
The glass panel between the windshield and the sun roof shattered spontaneously
Vehicle has a significant engine oil leak without being driven. Engine oil electronic meter still shows engine oil to be in "Ok" range. Vehicle is 2023 with only 19680 miles and is rarely driven till the last 2 months. Other 2023 Model Year MB GLC300's manufactured at the same Bremen Germany plant are already being recalled for engine and fuel leaks, however, this one is not on the list. This vehicle is also the 2.0L Inline 4 engine and may be the same engine as the others being recalled. The others are recalled due to an imperfect seal between the high pressure fuel pump and the tandem oil…
1. 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. Has been into dealer multiple times since this is HUGE risk to animals or small children exiting out of the rear. Dealer finally disabled hands free system. 2. Lane change assist/blind spot warning - Auto believes there's a vehicle in the lane to either side and will stop car from changing lanes, when actually there isn't a vehicle there. Has caused…
Car has software issue putting drivers at risk until the update is provided. Response to problem from manufacturer is to drive the car or wait until such time as a solution is developed. this is the 3 issue in less than a year the car's fuel uptake system is interrupted putting drivers at risk when pulling out into traffic or needing normal acceleration expected from a normally functioning car. How long will Mercedes get away with this before someone is killed
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.
First of all, this is a new car produced in 2023. Since I bought it, the engine has shown alarms more than four times. Every time I went to the 4S shop, no problems were found. Today, the engine still shows a yellow alarm. Secondly, the brake disc makes a loud noise when I park the car and then start the accelerator. Mercedes-Benz has not paid attention to these problems. I think it greatly affects driving safety.This car has been sent to the 4S store many times, but the inspection has always failed. The above-mentioned problems with the car have always existed. I sincerely request your help…
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)…
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2023 Mercedes-Benz GLC-Class: questions owners ask
Is the 2023 Mercedes-Benz GLC-Class reliable?
NHTSA data alone cannot rate reliability, but it shows what owners reported. Owners filed 65 complaints with NHTSA about the 2023 Mercedes-Benz GLC-Class; the most common categories were electrical system (30, 46.2%), engine (15, 23.1%), exterior lighting (10, 15.4%). There are no safety recalls listed for this model year. 2 complaints mention a crash, 4 injuries were reported.
What are the most common problems with the 2023 Mercedes-Benz GLC-Class?
Across 65 owner complaints filed with NHTSA, the categories mentioned most often are electrical system (46.2% of complaints), engine (23.1% of complaints), exterior lighting (15.4% of complaints), forward collision avoidance (13.8% of complaints), service brakes (12.3% of complaints). One complaint can name several components.
Does the 2023 Mercedes-Benz GLC-Class have any recalls?
As of October 2026, NHTSA lists no safety recalls for the 2023 Mercedes-Benz GLC-Class. Recalls can be issued at any time, so check your VIN at nhtsa.gov/recalls.
Why is the check engine light on in my 2023 Mercedes-Benz GLC-Class?
13 of the 65 owner complaints NHTSA has on file for the 2023 Mercedes-Benz GLC-Class (20%) describe the check engine light coming on. One owner wrote: "check engine light continues to turn on and off, response from dealer maintenance is this issue is temperature related and just keep driving, not sure how this makes for an effective or safe functioning of a warning light also seems like it can lead to…" (NHTSA complaint 11629834, December 2024). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why won't my 2023 Mercedes-Benz GLC-Class start?
9 of the 65 owner complaints NHTSA has on file for the 2023 Mercedes-Benz GLC-Class (13.8%) describe the car failing to start. One owner wrote: "Brand new car that had less than 1500 miles on it, one day went to start it while 20 miles away from home and error messages in dash and beeping "48V battery error, do not change transmission position, reduced functionality of driver assistance…" (NHTSA complaint 11538778, August 2023). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why does the battery keep dying on my 2023 Mercedes-Benz GLC-Class?
7 of the 65 owner complaints NHTSA has on file for the 2023 Mercedes-Benz GLC-Class (10.8%) describe a dead or draining battery. One owner wrote: "There are two issues 1) Unsure of the exact date, but about a year or two ago we were driving our car and the car's automatic break system went into effect on a typically busy, 3 lane road despite there not being any cars in front of our vehicle." (NHTSA complaint 11725254, March 2026). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Can the sunroof on the 2023 Mercedes-Benz GLC-Class shatter or fail?
4 of the 65 owner complaints NHTSA has on file for the 2023 Mercedes-Benz GLC-Class (6.2%) describe the sunroof or panoramic roof shattering, exploding or failing. One owner wrote: "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." (NHTSA complaint 11733932, April 2026). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why does my 2023 Mercedes-Benz GLC-Class stall, lose power or shut off while driving?
3 of the 65 owner complaints NHTSA has on file for the 2023 Mercedes-Benz GLC-Class (4.6%) describe the engine stalling, losing power or shutting off while driving. One owner wrote: "Vehicle shut down while driving. warning lights illuminate, check engine light, do not shift into gear warning, 48v battery warning, etc. would not stop alarming. could not shut off car. could not put car into park. could not start car." (NHTSA complaint 11537315, August 2023). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why does the seat belt not latch or retract properly in my 2023 Mercedes-Benz GLC-Class?
3 of the 65 owner complaints NHTSA has on file for the 2023 Mercedes-Benz GLC-Class (4.6%) describe seat belts not latching, retracting or locking. One owner wrote: "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." (NHTSA complaint 11722368, March 2026). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Check your own GLC-Class
Counts are a starting point, not a verdict: popular models collect more complaints because more of them are on the road, and NHTSA does not verify individual reports. To see whether a recall is still open on your car, enter your VIN at nhtsa.gov/recalls (U.S.) or your registration at check-vehicle-recalls.service.gov.uk (UK). Had a safety problem? Report it to NHTSA; complaints are what trigger investigations and recalls.
Data: NHTSA Office of Defects Investigation recall and complaint databases (public domain), DVSA vehicle recalls (Open Government Licence v3.0), EU Safety Gate alerts (© European Union), retrieved October 25, 2026. Model year 2023 only; combines NHTSA's entries for GLC-CLASS and GLC-CLASS COUPE.