2021 Mercedes-Benz GLB 250 4MATIC recalls and problems
1 recall and 2 owner complaints on file with NHTSA for the 2021 Mercedes-Benz GLB 250 4MATIC.
1
recalls
2
owner complaints
0
complaints mentioning a crash
0
mentioning a fire
Recalls apply to specific production ranges. To see whether a particular car still has an open recall, enter its VIN at nhtsa.gov/recalls. Repairs for safety recalls are free at authorised dealers.
2021 Mercedes-Benz GLB 250 4MATIC recalls
Latches/locks/linkages: doors, lock
NHTSA campaign 26V481000 · reported July 24, 2026 · Mercedes-Benz USA, LLC · 310,667 vehicles potentially affected
The problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 CLA, 2019-2022 A-Class, 2022-2023 C-Class, 2024 CLE, 2020-2026 GLA/GLB, and 2023-2024 GLC vehicles. Please refer to MBUSA's recall report for specific model information. The micro-switch in the driver's door lock may corrode and fail to detect an open door, preventing the electronic parking brake or "Auto-Park" feature from engaging automatically. This may result in a vehicle rollaway.
The risk
A vehicle rollaway increases the risk of a crash or injury.
The fix
Dealers will replace the driver's door lock, free of charge. Owner notification letters are expected to be mailed September 18, 2026. This will be a phased campaign, with the remedy becoming available in different phases based on model and model years. Owners may contact MBUSA customer service at 1-800-367-6372. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning July 31, 2026.
Most reported problems
Areas named in owner complaints to NHTSA. One complaint can name several areas.
Engine2
Electrical system1
Fuel/propulsion system1
What owners report
Recent complaints filed with NHTSA, shortened. These are unverified accounts from owners, not findings.
Jul 30, 2026 · Engine
As I was driving down road car began to lose power, check engine light came on and car went into limp mode. Car was towed to nearest repair shop where analysis was made. I was advised to take to dealership for repair. Advised that there was a service campaign issued by the manufacturer on GLB class with M260 motors…
Jun 9, 2026 · Engine
While driving on the highway at 70mph my transmission malfunction warning light illuminated in red and my vehicle went into limp mode, creating a life threatening safety defect at highway speeds. I immediately took the vehicle to Mercedes Benz of Pittsburgh. The dealer's own diagnostic tech notes stated 'software is…
Does the 2021 Mercedes-Benz GLB 250 4MATIC have any recalls?
Yes. NHTSA lists 1 recall for the 2021 Mercedes-Benz GLB 250 4MATIC, the most recent reported on July 24, 2026 (Latches/locks/linkages: doors, lock). Check a specific car by its VIN at nhtsa.gov/recalls.
What are the most common problems with the 2021 Mercedes-Benz GLB 250 4MATIC?
Owners have filed 2 complaints with NHTSA. The most frequently reported area is engine (2 complaints), followed by electrical system (1).
How many 2021 Mercedes-Benz GLB 250 4MATIC complaints mention a crash or fire?
0 of 2 complaints report a crash and 0 a fire; 0 injuries were reported in total. Complaints are unverified reports from owners.
Source: NHTSA recall and complaint data, updated October 27, 2026. Latest complaint received July 30, 2026.