AutoUtility currently tracks 78 official NHTSA owner defect complaints for the 2020 Mercedes-Benz GLC. Engine & Cooling issues are the most frequently reported category, appearing in 24 complaints (30.8% of submitted records). Among these NHTSA complaint records, 3 filings cite a crash, 2 cite a fire, 2 report one or more injuries. The 2020 Mercedes-Benz GLC belongs to the 1st Generation (X253/C253) platform.
- • Total NHTSA Complaints: 78 reports
- • #1 Reported Problem Area: Engine & Cooling (24 reports • 30.8% of submitted complaints)
- • Secondary Problem Areas: Driver Assistance & Safety Tech (16), Electrical System (10)
- • Crash-Citing Complaints: 3 filings
- • Fire-Citing Complaints: 2 filings
- • Complaints Reporting Injuries / Fatalities: 2 injury filings • 0 fatality filings
Most Reported Problems for 2020 Mercedes-Benz GLC
Top automotive subsystem defect categories ranked by unique owner complaint volume in federal records
Engine & Cooling
NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:
- Campaign #20V364000 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
Driver Assistance & Safety Tech
NHTSA records list 3 official safety recall campaigns for this model year involving the same broad component area:
- Campaign #19V540000 FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: RADAR
- Campaign #21V354000 BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
- Campaign #22V232000 BACK OVER PREVENTION:DISPLAY FUNCTION
Electrical System
NHTSA records list 3 official safety recall campaigns for this model year involving the same broad component area:
- Campaign #22V365000 ELECTRICAL SYSTEM:SOFTWARE
- Campaign #20V776000 ELECTRICAL SYSTEM:STARTER ASSEMBLY
- Campaign #20V395000 ELECTRICAL SYSTEM:SOFTWARE
Powertrain & Transmission
Exterior Lighting
NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:
- Campaign #24V070000 EXTERIOR LIGHTING:HEADLIGHTS
Recent NHTSA Owner Reports for 2020 Mercedes-Benz GLC
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"The seatbelt latch does not fully release when you press the red button. It needs to be wiggled and then it eventually does release. This is an ongoing issue."
"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..."
"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..."
"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"
"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. The vehicle was taken to the dealer, where it was determined that the panoramic sunroof and the sunroof..."
Complaint History for Mercedes-Benz GLC
Reported defect complaint volume across sibling model years (2016–2026)
| Model Year | NHTSA Complaints | Crash Reports | Safety Recalls | Detailed Report |
|---|---|---|---|---|
| 2016 Mercedes-Benz GLC | 139 | 10 | 12 | View 2016 Problems → |
| 2017 Mercedes-Benz GLC | 115 | 5 | 12 | View 2017 Problems → |
| 2018 Mercedes-Benz GLC | 99 | 5 | 14 | View 2018 Problems → |
| 2019 Mercedes-Benz GLC | 68 | 5 | 14 | View 2019 Problems → |
| 2020 Mercedes-Benz GLC Current Page | 78 | 3 | 18 | Current |
| 2021 Mercedes-Benz GLC | 8 | 0 | 9 | View 2021 Problems → |
| 2022 Mercedes-Benz GLC | 62 | 5 | 2 | View 2022 Problems → |
| 2023 Mercedes-Benz GLC | 65 | 2 | 12 | View 2023 Problems → |
| 2024 Mercedes-Benz GLC | 0 | 0 | 8 | View 2024 Problems → |
| 2025 Mercedes-Benz GLC | 17 | 4 | 3 | View 2025 Problems → |
| 2026 Mercedes-Benz GLC | 0 | 0 | 3 | View 2026 Problems → |
Detailed NHTSA Component Breakdown for 2020 Mercedes-Benz GLC
Complete distribution of consumer defect reports across all 32 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Reported Injury Entries | Reported Fatality Entries |
|---|---|---|---|---|---|
| Engine NHTSA category: ENGINE | 16 | 0 | 0 | 0 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 10 | 0 | 0 | 0 | 0 |
| EXTERIOR LIGHTING | 5 | 0 | 0 | 0 | 0 |
| Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION | 4 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,BACK OVER PREVENTION | 4 | 0 | 0 | 0 | 0 |
| Forward Collision Avoidance NHTSA category: FORWARD COLLISION AVOIDANCE | 4 | 1 | 0 | 3 | 0 |
| ELECTRICAL SYSTEM,ENGINE | 3 | 0 | 1 | 0 | 0 |
| Powertrain NHTSA category: POWER TRAIN | 3 | 0 | 0 | 0 | 0 |
| Air Bags NHTSA category: AIR BAGS | 2 | 1 | 0 | 1 | 0 |
| Electrical System NHTSA category: ELECTRICAL SYSTEM | 2 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE | 2 | 0 | 0 | 0 | 0 |
| Steering NHTSA category: STEERING | 2 | 1 | 0 | 0 | 0 |
| Structure & Body NHTSA category: STRUCTURE | 2 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,STRUCTURE,ENGINE | 1 | 0 | 1 | 0 | 0 |
| ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| LANE DEPARTURE,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| Seat Belts NHTSA category: SEAT BELTS | 1 | 0 | 0 | 0 | 0 |
| Service Brakes NHTSA category: SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| STEERING,SEATS,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| STEERING,SUSPENSION,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| STEERING,TIRES | 1 | 0 | 0 | 0 | 0 |
| STRUCTURE,UNKNOWN OR OTHER,VISIBILITY/WIPER | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,SERVICE BRAKES,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL | 1 | 0 | 0 | 0 | 0 |
| VEHICLE SPEED CONTROL,ENGINE | 1 | 0 | 0 | 0 | 0 |
| VEHICLE SPEED CONTROL,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| Visibility / Glass NHTSA category: VISIBILITY | 1 | 0 | 0 | 0 | 0 |
| Wheels & Hubs NHTSA category: WHEELS | 1 | 0 | 0 | 0 | 0 |
The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.