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
2020 / mercedes-benz / glc-class
known issues
6 clusters (reviewed 2026-08-27)
complaints
80 on file (2020-01-15 → 2026-08-31)
recalls
0
investigations
0
fars
5 occupant deaths, crash years 2010-2024 (legacy-code)
Headlight assembly moisture intrusion and failureEXTERIOR LIGHTING6 complaints2024-07 → 2026-02glc-2020-headlight-moisture-intrusion
11719167 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
11711256 Water condensation within the driver side headlight which caused the complete headlight unit, control unit, and module to fail
11661143 Entire front right headlight assembly and module failed with no headlight, turn signal, park light etc. There is no visible external damage to the assembly although there is some moisture inside assembly
Panoramic sunroof shattering or detaching while drivingSTRUCTURE6 complaints2021-04 → 2026-02glc-2020-panoramic-sunroof-shattering
11715247 The contact owns a 2020 Mercedes-Benz GLC300. The contact stated that while driving at an undisclosed speed, the panoramic roof unexpectedly shattered. There was no warning light illuminated
11667157 Panoramic sunroof blew off vehicle while driving. Other drivers were put at a risk from a vehicle component flying through the air at high speed. The vehicle has been inspected by the dealership. No warnings prior to the problem
11414496 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
Backup camera display failure tied to recall 21V354BACK OVER PREVENTION9 complaints2022-02 → 2025-07glc-2020-backup-camera-failure-recall
11674358 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
11656070 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
11491174 The contact owns a 2020 Mercedes-Benz GLC300. The contact received notification of NHTSA Campaign Number: 21V354000 (Back Over Prevention, Electrical System) however, the part to do the recall repair was unavailable
Oil pump and oil pressure control failureENGINE3 complaints2025-04 → 2026-06glc-2020-oil-pump-pressure-failure
11746524 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
11712746 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
11653722 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
Cylinder head and valve seat failure causing misfireENGINE11 complaints2024-05 → 2025-12glc-2020-cylinder-head-valve-seat-failure
11703748 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
11678816 With approximately 57,500 miles, the car began idling roughly, misfiring and losing power. The dealership has diagnosed it with a cracked cylinder head which will require a replacement at a cost of $9,765.00
11629875 The contact owns a 2020 Mercedes-Benz GLC300. The contact stated that while stopped at a red light, the vehicle started shaking and jerking. The check engine warning light was illuminated
Sudden hesitation or loss of power during accelerationVEHICLE SPEED CONTROL, ENGINE12 complaints2020-12 → 2026-05glc-2020-sudden-power-loss-hesitation
11689240 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
11692479 The engine is failing, I was on my way to drop my [XXX] off at daycare when suddenly my car went above and stayed above 5rpms meanwhile I was only able to drive 8mph
11382743 THIS VEHICLE IS UNSAFE. WHEN DRIVING IN TRAFFIC THE ENGINE/TRANSMISSION WILL NOT DELIVER POWER IN RESPONSE TO THROTTLE APPLICATION, IT IS ALSO INCONSISTENT IN IT'S RESPONSE FROM ONE TIME TO THE NEXT
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). 2020 Mercedes-Benz GLC-Class vehicle data [dataset]. https://www.wrench.pro/data/vehicles/2020/mercedes-benz/glc-class
@misc{wrenchpro_2020_mercedes_benz_glc_class_2026,
author = {Wrench.Pro},
title = {Wrench.Pro vehicle data: 2020 Mercedes-Benz GLC-Class},
year = {2026},
howpublished = {\url{https://www.wrench.pro/data/vehicles/2020/mercedes-benz/glc-class}},
note = {Derived from NHTSA public records. CC BY 4.0.}
}
