Glc (2021)
NHTSA Safety Ratings About NHTSA ratings
Engine Reliability Ratings
M264
2.0L 4-cyl TurboView details
Complaint Breakdown
Known Issues
1 additional engine variant with fewer than 10 complaints not shown.
Vehicle-Level Issues
These issues affect the Mercedes-Benz Glc regardless of engine variant.
Alternatives in Midsize SUV
Frequently Asked Questions
What are the most common 2021-2021 Mercedes-Benz Glc problems?
The 2021-2021 Mercedes-Benz Glc has accumulated 59 NHTSA complaints. The most frequently reported problem areas are Engine, Fuel System, Exterior. As with any used vehicle, a pre-purchase inspection and vehicle history report are recommended.
Which Mercedes-Benz Glc engine is most reliable?
The 2021-2021 Mercedes-Benz Glc was offered with 2 engine options. Based on NHTSA complaint data, the 2.0L 4-cyl has the lowest complaint density and is considered the most reliable choice for buyers.
Is the 2021-2021 Mercedes-Benz Glc a good used car?
The 2021-2021 Mercedes-Benz Glc can be a solid used car purchase depending on trim, mileage, and maintenance history. With 59 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.
How many NHTSA complaints does the 2021-2021 Mercedes-Benz Glc have?
The 2021-2021 Mercedes-Benz Glc has 59 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.
What recalls affect the 2021-2021 Mercedes-Benz Glc?
There are 0 NHTSA recalls affecting some 2021-2021 Mercedes-Benz Glc vehicles. Recall status varies by VIN โ check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.
What should I check before buying a used Mercedes-Benz Glc?
Before buying a used Mercedes-Benz Glc, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Engine, Fuel System, Exterior, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.
What are the NHTSA crash test ratings for the Glc?
The 2021 Mercedes-Benz Glc received an overall 5-star safety rating from NHTSA. Frontal crash: 5 stars. Side crash: 5 stars. Rollover: 4 stars (18.5% rollover probability). Electronic Stability Control: Standard. Forward Collision Warning: Standard. Lane Departure Warning: No. These ratings are based on standardized crash tests conducted by the National Highway Traffic Safety Administration.
Data from NHTSA federal complaints database. 59 complaints analyzed. Data confidence: moderate. Last updated: 2026-04-07.