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2020 Mercedes-Benz GLC-Class problems, recalls and owner complaints
What the 2020 Mercedes-Benz GLC-Class has been recalled for, how often it fails the UK MOT and what owners report, from official government data. Updated October 25, 2026.
- 0safety recalls
- 80owner complaints
- 3crash reports
- 2fire reports
- 9%fail the UK MOT
80 complaints, against an average of 71 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 2020 Mercedes-Benz GLC-Class?
The components named most often in the 80 owner complaints. One complaint can name several, so the shares can add up to more than 100%.
What symptoms do 2020 Mercedes-Benz GLC-Class owners describe?
Found by reading the text of all 80 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 2020 Mercedes-Benz GLC-Class?12 owners · 15%
- Why does my 2020 Mercedes-Benz GLC-Class idle rough, misfire or hesitate?11 owners · 13.8%
- Why does my 2020 Mercedes-Benz GLC-Class stall, lose power or shut off while driving?8 owners · 10%
- Why do the headlights or taillights fail on my 2020 Mercedes-Benz GLC-Class?7 owners · 8.8%
- Has the 2020 Mercedes-Benz GLC-Class had engine failures?4 owners · 5%
- Why does the backup camera not work on my 2020 Mercedes-Benz GLC-Class?4 owners · 5%
- Can the sunroof on the 2020 Mercedes-Benz GLC-Class shatter or fail?3 owners · 3.8%
Has the 2020 Mercedes-Benz GLC-Class been recalled?
NHTSA lists no safety recalls for the 2020 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 2020 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 DVSASRPC2603 - Drive Shaft JointDrive Shaft Joint
Risk: Mercedes-Benz AG has determined that on certain 4MATIC E-Class (213 platform) S-Class Coupé (217 platform) S-Class (222 platform) E-Class Coupe/Convertible (238 platform) GLC (253 platform) and CLS (257 platform) vehicles increased wear of the universal joint on the drive shaft might occur.
Fix: As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will check the drive shaft on the affected vehicles and replace it if necessary.
UK DVSAThe routing of the transmission wiring harness might not meet specifications
Risk: The routing of the transmission wiring harness might not meet specifications.
Fix: Check the transmission wiring harness routing on the affected vehicles and replace it if necessary.
UK DVSAA particle in the fuel rail might lead to a leak between the fuel rail and the injector
Risk: A particle in the fuel rail might lead to a leak between the fuel rail and the fuel injector.
Fix: Replace the fuel rail and fuel injectors on the affected vehicles.
UK DVSACoolant pump might have a leakage between the vacuum system and the coolant circuit
Risk: On certain vehicles with a Diesel engine the coolant pump which is controlled by vacuum might have a leakage between the vacuum system and the coolant circuit.
Fix: Update the software of the coolant pump and replace the electrical switch valve on the affected vehicles.
UK DVSAThe crankshaft might not meet specifications
Risk: On certain vehicles with a 4-cylinder Diesel engine the crankshaft might not meet specifications.
Fix: Replace the engine on the affected vehicles.
UK DVSAThe behaviour of the emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe behaviour of the emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe behaviour of the emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe behaviour of the emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe belt tensioner arm may have been manufactured with borderline tolerance
Risk: The belt tensioner arm may have been manufactured with borderline tolerance.
Fix: Replace the belt tensioner. Additionally check the v-ribbed belt on the affected vehicles and replace it if necessary.
UK DVSAThe locking mechanism for the electrical connector of the side crash sensors might not meet specifications
Risk: The locking mechanism for the electrical connector of the side crash sensors might not meet specifications.
Fix: Check the side crash sensors in the doors on the affected vehicles and replace them if necessary.
UK DVSAVehicles with a panoramic sunroofthe polycarbonate panel may not have been bonded correctly during a prior service repair
Risk: The polycarbonate panel located between the windshield and the panoramic sunroof may not have been bonded correctly during a prior service repair.
Fix: Remove the bonded panel and install a new polycarbonate panel if required.
UK DVSAThe behaviour of the emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe behaviour of the emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe behaviour of the emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe connection of the gas lines of the inertisation system might not meet specifications
Risk: The connection of the gas lines of the inertisation system might not meet specifications.
Fix: Check and if necessary rework the gas lines of the inertisation system.
UK DVSAThe behaviour of the emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe behaviour of the emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe behaviour of the emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe behaviour of the emergency call system might not meet specifications
Risk: The behaviour of the emergency call system might not meet specifications.
Fix: Update the software of the communication module for the emergency call system.
UK DVSAThe communication module may be deactivated
Risk: The communication module may be deactivated
Fix: Carry out a check of the configuration of the communication module on affected vehicles and if necessary activate the communication module.
UK DVSAThe software of certain communication modules may not meet specifications
Risk: The software of certain communication modules may not meet specifications.
Fix: Carry out an update to the software of the communication module on affected vehicles.
UK DVSAThe screw connection of the power supply on the starter may not have been installed according to specification
Risk: The screw connection of the power supply on the starter might not have been installed according to specification.
Fix: Check the screw connections of the starter on the affected vehicles and correct them if necessary.
UK DVSAThe wiring harness of the steering control unit may not have been manufactured to specification
Risk: The wiring harness of the steering control unit might not have been manufactured according to specification.
Fix: Check the wiring harness of the steering control unit on the affected vehicles and replace it if necessary.
UK DVSAThe high voltage wiring harness shield may not permanently withstand the electrical loads that are induced under certain driving profiles
Risk: The shield for the high-voltage wiring harness may not permanently withstand the electrical loads that are induced under certain driving profiles
Fix: Replace the high-voltage wiring harness on the affected vehicles
UK DVSAAn electrical contact inside the engine control unit may not meet the specification
Risk: An electrical contacting inside the engine control unit might not meet the specification
Fix: Replace the engine control unit on the affected vehicles
UK DVSAThe software of the esp control unit may not meet the specifications
Risk: The software of the ESP control unit might not meet the specifications.
Fix: Update the software for the ESP control unit on the affected vehicles.
UK DVSAThe data documenting the correct mounting of the turbocharger oil feed as well as the oil return line may be missing
Risk: The HV battery pack can overheat and result in the venting of hot gas which can ignite vehicle components or in extreme cases the entire vehicle.
Fix: To prevent a vehicle fire the vehicles should not be charged using the external charging cable and the vehicles should only be driven using the default Auto EV mode only
UK DVSAThe left rear seat backrest lock may not meet specifications
Risk: The left rear seat backrest lock might not meet the specifications
Fix: Replace the left rear seat backrest lock on the affected vehicles.
UK DVSAIncorrect starter wiring harness and holder for fixing the exhaust system may be installed
Risk: An incorrect starter wiring harness and a holder for fixing the exhaust system could be installed.
Fix: Replace the starter wiring harness and the holder for fixing the exhaust on the affected vehicles.
UK DVSAThe four locknuts securing the air bag might be missing
Risk: Certain driver airbag modules might not be bolted onto the base plate.
Fix: Check the driver airbag on the affected vehicles and replace it if necessary.
EU Safety GateThe vacuum-controlled coolant pump may not be tightly sealed between the coolant and vacuum circuits.This may result in the coolant leaking into the vacuum circuit leading to an electrochemical reaction, 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 GateA trapped particle may damage the sealing between the fuel rail and fuel injector, which could cause fuel to leak into the engine…A trapped particle may damage the sealing between the fuel rail and fuel injector, which could cause fuel to leak into the engine compartment. Consequently, leaking fuel may come into contact with hot parts of the engine, 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 belt tensioner arm may have been manufactured with a borderline tolerance, which could cause one side of the V-ribbed belt to rub…The belt tensioner arm may have been manufactured with a borderline tolerance, which could cause one side of the V-ribbed belt to rub against the belt tensioner, causing it to fail. As a result, the coolant pump may stop working, causing the engine to overheat, thus compromising the impermeability of the oil sump. Consequently, oil may leak onto the road, posing a risk to the following traffic.
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 electrical connector of the side-impact sensors might not be correctly latched and could become detached.This would lead to delayed activation of the restraint systems in the event of a side impact, reducing their restraining effect and increasing the risk of injury to the vehicle occupants.
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 polycarbonate roof panel located between the windscreen and the panoramic roof may not have been bonded correctly to the vehicle…The polycarbonate roof panel located between the windscreen and the panoramic roof may not have been bonded correctly to the vehicle during a prior repair. In such cases, the adhesive bonding could gradually deteriorate and the panel could become detached from the vehicle, posing a risk to other road users.
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 GateFaulty connection of the inerting system’s gas pipes could impair the intended distribution of argon shielding gas to the points where…Faulty connection of the inerting system’s gas pipes could impair the intended distribution of argon shielding gas to the points where there could be contact between the leaking refrigerant R1234yf and hot engine components in the event of an accident.This would reduce the cooling effect of the inerting gas, leading to increased 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 GateDue to defective screw connection, the positive 12V battery cable may come into contact with the starter and be damaged by its movement.Consequently, the damaged positive cable might be in contact with the starter housing, which could lead to a short circuit. As a result, the battery may become discharged in a short period of time, and an intermediary electrical component might be overloaded, leading to immobilisation of the vehicle and to increased 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 wiring harness for the steering control device may have been damaged during the production process and can allow moisture to ingress…The wiring harness for the steering control device may have been damaged during the production process and can allow moisture to ingress into the control unit.This may lead to the loss of electric steering support, increasing the risk of accident. Moreover, a short circuit of the damaged wiring harness can occur, leading to increased 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 bolts on the cross-member or the coupling device may not have been tightened with the correct torque.As a result, the cross-member could become detached from the vehicle whilst another vehicle is being towed, 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 GateDue to the lack of documentation, there is no confirmation that the screw connections of the turbocharger’s oil-supply and oil-return…Due to the lack of documentation, there is no confirmation that the screw connections of the turbocharger’s oil-supply and oil-return pipes were correctly executed during the assembly process. In the event of a loose screw connection, oil might leak at the oil-supply and/or oil-return pipe of the turbocharger.The leaking oil might then come into contact with hot components, 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 left-hand side, rear seat-back lock does not comply with the specifications.This could lead to a failure of the seat-back locking system in the event of an accident, 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 four self-locking nuts used to attach the airbag might not have been correctly tightened.As a result, in the event of an accident in which the airbag was deployed, it could become detached from its base plate, failing to provide its restraining effect and increasing the risk of 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
How often does the 2020 Mercedes-Benz GLC-Class fail its MOT?
Why they failed: the share of failed tests with at least one fault in each area (a test can fail on several). Cars first registered in 2020, tested in Great Britain in 2023; first registration is usually, but not always, the model year. Source: DVSA anonymised MOT tests and results, Open Government Licence v3.0.
What do 2020 Mercedes-Benz GLC-Class owners report?
12 of the 80 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.
My check-engine light recently illuminated, and diagnostic testing identified fault code P06DA00, relating to the oil pump control valve circuit. I have been quoted over $5,000 to replace the oil control valve and oil pump harness. I was quoted the following by Mercedes Servuce in Manchester, NH- Oil Pressure Regulator Valve: need to remove lower oil pan only to access oil control valve and replace the valve and sub harness. $5013.52. This is a known issue. My vehicle has been well maintained, and I have been advised that it is otherwise in excellent mechanical condition. I intend to keep and…
What component or system failed or malfunctioned, and is it available for inspection upon request? The Forward Collision Avoidance / Active Brake Assist (Automatic Emergency Braking) system failed by falsely identifying a non-existent threat and initiating uncommanded emergency stopping. The vehicle and its onboard control modules are fully available for physical and diagnostic inspection upon request. How was your safety or the safety of others put at risk? While traveling at approximately 35 mph, the vehicle suddenly executed maximum emergency braking with zero warning and no preceding…
My 2020 Mercedes-Benz GLC 300 triggered check engine light with code P06DA (engine oil pressure control) at 40,000 miles. The failed component is an oil pressure control sensor/solenoid worth approximately $200. However, due to Mercedes-Benz's engine design (M264 engine), the entire engine must be removed from the vehicle to access and replace this part. Repair estimate from authorized Mercedes-Benz dealership (Mercedes-Benz of Stevens Creek): $8,391. SAFETY CONCERN: Loss of oil pressure can cause catastrophic engine failure while driving. Engine seizure at highway speeds poses serious risk of…
I have had my car for almost two years. This problem has been on-going the whole time. It happens intermittently, I never know. I will be driving it and usually when I am making a turn or pulling onto a main road, you press the gas to go and the car hesitates and makes a loud brooooooooom sound like it is trying to go or figure out what to do and if you are pulling out onto a main road with on comming traffic, this is dangerous. We have seen information that on the 2019 and 2018 GLC300's this has been documented, my car is a 2020 but it's the same thing. It's like the car hesitates and slows…
There was a recall on headlight leaking and this happened to my left headlight no damage but leaking and this caused headlight to not work
Premature oil pump failure on a 2020 Mercedes-Benz GLC 300 with 71,000 miles. The check engine light illuminated on December 29th, 2025 and with no other warning symptoms. The vehicle has been maintained properly, including regular visits to Mercedes-Benz dealerships. The oil pump is a critical engine component that should not fail at this mileage. It has been recommended to not drive the vehicle without repairing as oil can leak onto a hot engine. This issue has been confirmed by a Mercedes dealer. Mercedes-Benz has offered 1,000 in goodwill on a 7,400 repair, which is unreasonably low given…
On August 15, 2025, I was driving my Mercedes-Benz GLC 300 4MATIC on the freeway under normal conditions. Without any warning lights, error messages, or prior signs of mechanical issues, the vehicle suddenly and completely lost power. The accelerator pedal became unresponsive and felt locked, and the vehicle came to an abrupt stop in the middle of an active freeway, in the second lane from the left. I had no ability to control or prevent the stoppage. This unexpected power loss directly led to a rear-end collision. The vehicle behind me sustained severe front-end damage, including airbag…
For the past 6 months, the monitor in my SUV wont come on when I turn on the truck. Even when I turn the vehicle off, remove the key and step out of the vehicle, it will still do it until like the I next day. Often, still, when I am putting my car in reverse, the camera does not work. Very often. This put the safety of me and my children at risk as this is not what I am accustomed to as far as safety is concerned. I took the car to Mercedes Benz dealership here in Augusta GA and showed multiple videos of the screen not coming on or not working when I had it in reverse, they were to charge me…
The contact owns a 2020 Mercedes-Benz GLC300. The contact stated while attempting to reverse, the back over prevention camera displayed a blank screen. The vehicle was not taken to an independent mechanic or dealer to be diagnosed. The contact stated that the failure had occurred on several occasions. The vehicle was repaired. The manufacturer was notified of the failure, and informed the contact that the VIN was not under recall for the failure. The contact related the failure to NHTSA Campaign Number: 22V232000 (BACK OVER PREVENTION); however, the VIN was not included in the recall. The…
The contact owns a 2020 Mercedes-Benz GLC300 equipped with Goodyear Tires, Tire Line: Eagle Sport All Season, Tire Size: 255/45/R20, DOT Number: NE12JU1R1021. The contact stated that within a year of purchasing the vehicle brand new, he noticed that there was significant amount of rubber coming off the outer side of the front passenger's side tire. The contact stated that the failure was moderate on the front driver's side tire. The contact stated that the vehicle was taken to the dealer, where the front driver's side tire was replaced twice due to the failure. Additionally, the front…
Center COMAND screen malfunctions. No rear camera view when reversing when screen does not work. Dealer attempted a repair but issue remains. Parts ordered for replacement.
The contact owns a 2020 Mercedes-Benz GLC300. The contact stated that while operating the vehicle, the 12-Volt battery warning light remained illuminated. The contact stated that while driving at various speeds, the vehicle shut off. The failure also occurred while driving on a busy freeway. The vehicle was towed to the local dealer who diagnosed that the STOP/START button was faulty and needed to be replaced. The STOP/START button was replaced but the failure persisted. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 40,000.
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2020 Mercedes-Benz GLC-Class: questions owners ask
Is the 2020 Mercedes-Benz GLC-Class reliable?
NHTSA data alone cannot rate reliability, but it shows what owners reported. Owners filed 80 complaints with NHTSA about the 2020 Mercedes-Benz GLC-Class; the most common categories were engine (27, 33.8%), electrical system (10, 12.5%), back over prevention (8, 10%). There are no safety recalls listed for this model year. 3 complaints mention a crash, 2 mention a fire, 4 injuries were reported.
What are the most common problems with the 2020 Mercedes-Benz GLC-Class?
Across 80 owner complaints filed with NHTSA, the categories mentioned most often are engine (33.8% of complaints), electrical system (12.5% of complaints), back over prevention (10% of complaints), forward collision avoidance (7.5% of complaints), power train (7.5% of complaints). One complaint can name several components.
Does the 2020 Mercedes-Benz GLC-Class have any recalls?
As of October 2026, NHTSA lists no safety recalls for the 2020 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 2020 Mercedes-Benz GLC-Class?
12 of the 80 owner complaints NHTSA has on file for the 2020 Mercedes-Benz GLC-Class (15%) describe the check engine light coming on. One owner wrote: "The check engine light was on. There is a problem with the oil pump valve of the engine. The problem has been confirmed by a dealer and an independent mechanic." (NHTSA complaint 11653722, April 2025). 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 2020 Mercedes-Benz GLC-Class idle rough, misfire or hesitate?
11 of the 80 owner complaints NHTSA has on file for the 2020 Mercedes-Benz GLC-Class (13.8%) describe rough idling, misfires or hesitation when accelerating. One owner wrote: "I have had my car for almost two years. This problem has been on-going the whole time. It happens intermittently, I never know." (NHTSA complaint 11737705, May 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 2020 Mercedes-Benz GLC-Class stall, lose power or shut off while driving?
8 of the 80 owner complaints NHTSA has on file for the 2020 Mercedes-Benz GLC-Class (10%) describe the engine stalling, losing power or shutting off while driving. One owner wrote: "The engine in my 2020 Mercedes-Benz GLC 300 suddenly malfunctioned while driving on two separate occasions. The vehicle began shaking violently and lost power without warning. I could not accelerate and had to pull over immediately." (NHTSA complaint 11703748, December 2025). 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 do the headlights or taillights fail on my 2020 Mercedes-Benz GLC-Class?
7 of the 80 owner complaints NHTSA has on file for the 2020 Mercedes-Benz GLC-Class (8.8%) describe headlights, taillights or brake lights failing or condensation in the lamps. One owner wrote: "There was a recall on headlight leaking and this happened to my left headlight no damage but leaking and this caused headlight to not work" (NHTSA complaint 11719167, February 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.
Has the 2020 Mercedes-Benz GLC-Class had engine failures?
4 of the 80 owner complaints NHTSA has on file for the 2020 Mercedes-Benz GLC-Class (5%) describe complete engine failure or a replaced engine. One owner wrote: "Engine failure needs cylinder head replaced which is very common amongst this car. Same make and model is covered under warranty but mine has a different engine that isn't covered. These cars were made during covid and have faulty parts." (NHTSA complaint 11586626, May 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 does the backup camera not work on my 2020 Mercedes-Benz GLC-Class?
4 of the 80 owner complaints NHTSA has on file for the 2020 Mercedes-Benz GLC-Class (5%) describe the rearview or backup camera failing or showing a blank screen. One owner wrote: "Center COMAND screen malfunctions. No rear camera view when reversing when screen does not work. Dealer attempted a repair but issue remains. Parts ordered for replacement." (NHTSA complaint 11581247, April 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.
Can the sunroof on the 2020 Mercedes-Benz GLC-Class shatter or fail?
3 of the 80 owner complaints NHTSA has on file for the 2020 Mercedes-Benz GLC-Class (3.8%) describe the sunroof or panoramic roof shattering, exploding or failing. One owner wrote: "The sunroof of our car shattered by itself when we were driving on a city street. there was no projectile that caused the sunroof to shatter and the dealership was able to confirm that." (NHTSA complaint 11414496, April 2021). 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 anonymised MOT results (Open Government Licence v3.0), DVSA vehicle recalls (Open Government Licence v3.0), EU Safety Gate alerts (© European Union), retrieved October 25, 2026. Model year 2020 only; combines NHTSA's entries for GLC-CLASS, GLC-CLASS COUPE and GLC-CLASS HYBRID.