2021 Mercedes-Benz GLA 250 problems, complaints & recalls
Updated from NHTSA data · How we count
Owners have filed 18 complaints with NHTSA about the 2021 Mercedes-Benz GLA 250, most often about engine. There are 9 recalls for this model year.
- Complaints
- 18
- Recalls
- 9
- Crashes
- 1
- Fires
- 0
- Injuries
- 2
- Median mileage
- 6,600 mi at time of problem
Key facts
- Engine is the most-reported problem area, named in 6 of 18 complaints (33%).
- Electrical System (4) and driver assistance & safety tech (3) follow.
- Half of the complaints that list mileage happened before 6,600 mi.
- Owners reported 1 crash, 0 fires and 2 injuries.
- The 2021 Mercedes-Benz GLA 250 has 9 recalls on file.
- It ranks 5th of 13 Mercedes-Benz GLA 250 model years by our severity-weighted complaint score (1st = worst).
- That is 80% more complaints than the 2020 model year (10).
2021 Mercedes-Benz GLA 250 problems by category
- Engine6 complaints
- Electrical System4 complaints
- Other / Unknown4 complaints
- Driver Assistance & Safety Tech3 complaints
- Body & Structure3 complaints
- Fuel, Hybrid & EV Propulsion3 complaints
- Wheels & Tires · 1 crash2 complaints
- Transmission & Drivetrain2 complaints
- Brakes1 complaints
- Acceleration & Cruise Control1 complaints
A complaint can mention more than one problem area, so categories add up to more than the total.
Most-reported components
| Component (as filed with NHTSA) | Complaints |
|---|---|
| Engine | 5 |
| Electrical system | 4 |
| Unknown or other | 4 |
| Fuel/propulsion system | 3 |
| Power train | 2 |
| Tires | 2 |
| Back over prevention | 2 |
| Vehicle speed control | 1 |
When problems happen (mileage)
2021 Mercedes-Benz GLA 250 recalls (9)
- LATCHES/LOCKS/LINKAGES:DOORS:LOCK
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.
Risk: A vehicle rollaway increases the risk of a crash or injury.
Remedy: 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.
- EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL · SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2020 A220, 2020 CLA250, GLB250, AMG A35, AMG CLA45, AMG CLA35, and 2021 GLA250 vehicles. The vehicles may not be equipped with an inspection gauge to check the wear of the rear brake pads. In addition, information for using this inspection gauge might not be included in the owner's manual. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 135, "Light Vehicle Brake Systems."
Risk: Driving with worn brake pads can reduce braking ability, increasing the risk of a crash.
Remedy: Dealers will install an inspection gauge and provide supplemental owner's manual information, free of charge. Owner notification letters were mailed on February 29, 2024. Owners may contact MBUSA customer service at 1-800-367-6372.
- COMMUNICATION: AUTO CRASH NOTIFICATION · ELECTRICAL SYSTEM:SOFTWARE
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.
Risk: A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
Remedy: The communication module software will be updated through an Over-the-Air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022. Owner notification letters will be mailed in phases, on July 8, 2022, May 17, 2024, July 29, 2024, and September 27, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers are for this recall is 2022060005 and 2023110006.
- BACK OVER PREVENTION:DISPLAY FUNCTION
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018-2021 CLA-Class, GLE/GLS-Class, A-Class, C-Class, E-Class, E-Class Coupe/Convertible, GLA/GLB-Class, GLC-Class, and CLS-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The rearview camera may not display the rearview image due to a software error. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Risk: An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
Remedy: Dealers will update the rearview camera software, free of charge. Owner notification letters were mailed July 15, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022060007.
- SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 AMG CLA 35 and 2021 GLA 250 vehicles. The rear brake caliper housing fasteners may be loose, which can reduce brake performance or cause rear brake components to detach from the vehicle.
Risk: Reduced brake performance can increase the risk of a crash. In addition, detached brake components can create a road hazard, and increase the risk of a crash for other drivers.
Remedy: Dealers will inspect and tighten the fasteners on the rear brake caliper housings, as necessary, free of charge. Owner notification letters were mailed March 25, 2022. Owners may contact MBUSA customer service at 1-800-367-6372.
- BACK OVER PREVENTION: SENSING SYSTEM: CAMERA · ELECTRICAL SYSTEM:SOFTWARE
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 CLA-Class, GLE/GLS-Class, A-Class, E-Class, E-Class Coupe and Convertible, GLA/GLB-Class, GLC-Class, CLS-Class, and AMG GT-Class 4-door Coupe vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The MBUX multimedia system software may cause the display to remain black, or reboot after startup. This could result in the rearview camera image not displaying properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
Risk: A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
Remedy: The multimedia system software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed beginning June 28, 2021. Owners may contact MBUSA customer service at 1-800-367-6373. MBUSA's number for this recall is 2021050012.
- AIR BAGS:FRONTAL
Mercedes-Benz USA, LLC (MBUSA) is recalling certain GLA250 vehicles. The ground connection for the front passenger air bag may not be mounted properly, which could result in an inadvertent deployment.
Risk: Inadvertent air bag deployment can increase the risk of injury for an occupant in the front passenger seat, and increase the possibility of a vehicle crash.
Remedy: MBUSA will notify owners, and dealers will inspect the ground connection for the passenger air bag and correct it, if necessary, free of charge. The recall began March 26, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021020037.
- COMMUNICATION · COMMUNICATION: AUTO CRASH NOTIFICATION
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2019 C300, E300, 2018-2020 CLA250, 2020 CLS450, AMG E53, AMG GT53, GLE450, 2018 AMG E63, AMG GTA, 2017-2020 GLA250, GLC300, 2019 GLC350, AMG GLC43, 2017-2018 GLE350, 2019 AMG GLC 43, GLC350, GLE400, 2017 GLS450, S550, C300 Cabrio, and 2018-2019 S560 vehicles. On June 18, 2021, an additional 9 vehicles were added, including certain 2021 GLA250, GLC300, 2018 S450, E400, and 2017 CLA250 vehicles. The communication module might have been inadvertently deactivated during a service visit, which could have disabled the Emergency Call (eCall) function.
Risk: A disabled eCall system would prevent a vehicle occupant from contacting emergency services through the call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
Remedy: MBUSA will notify owners, and dealers will inspect the communication module and activate it, if necessary, free of charge. The recall began March 31, 2021. Letters for the owners of the 9 additional vehicles were mailed July 9, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021030005.
- COMMUNICATION: AUTO CRASH NOTIFICATION · ELECTRICAL SYSTEM:SOFTWARE
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
Risk: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Remedy: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
Recent 2021 Mercedes-Benz GLA 250 complaints
Excerpts of the newest owner complaints, lightly cleaned of personal details. Complaints are unverified owner reports.
- Filed Sep 23, 2026NJBody & Structure
The contact owns a 2021 Mercedes-Benz GLA250. The contact received notification of NHTSA Campaign Number: 26V481000 (Latches/Locks/Linkages); however, the part to do the recall repair was not yet available. The local dealer was contacted by the manufacturer. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.
NHTSA complaint #11766452 · source - Filed Jun 13, 2026FLBody & StructureElectrical SystemEngine
Cowl vent grille openings allowed normal environmental debris to accumulate, plug drainage and divert water onto electrical components and potentially result in a fire if not addressed. Some of the debris passes through into the hvac system and cannot be cleaned without dealer removal/repair of the hvac motor, which costs the customer more than $500 in repairs and disincentivizes mitigation. Furthermore, Mercedes is aware of the problem, has not issued a customer…
NHTSA complaint #11743847 · source - Filed Jan 26, 2026CAFuel, Hybrid & EV PropulsionOther / Unknown
The Gas Door did not open in order to pump gasoline. There is no mechanical device for the driver, passenger, owner of the vehicle to manually open the gas door from the inside. There was no electronic warning within the Mercedes Benz to alert driver about malfunction of gas door not working. Driver took vehicle to local Firestone mechanic who said the "gas door actuator" needed to be replaced. Accordingly, vehicle with the remaining gasoline was taken to local Mercedes…
NHTSA complaint #11713295 · source - Filed Aug 2, 2025FLEngineFuel, Hybrid & EV PropulsionAcceleration & Cruise Control
When coming to a full stop at a red light (or any need to idle at a stop), the car frequently begins to hesitate as if it is about to cut off. I assume it has something to do with the ‘fuel saving feature’ which comes on in the form of a green symbol in the lower left of the odometer display (the engine is still running the AC) . When you start to drive again the car always jerks before moving , on at least 3 occasions it has actually cut off completely and must be restarted…
NHTSA complaint #11677929 · source - Filed May 16, 2025CAEngineOther / Unknown
I am reporting a potential safety and mechanical defect involving the cylinder head in the Mercedes-Benz GLA 250. Many owners, including myself, have experienced premature cylinder head failure, often without warning, leading to loss of power, engine misfires, rough idling, and in some cases, sudden engine shutdown while driving. This issue appears to be widespread among GLA models equipped with the M260/M270 engine, often occurring well before 100,000 miles. It raises…
NHTSA complaint #11661372 · source - Filed Dec 23, 2024CA1 injuredBody & Structure
Twice now, my husband is putting groceries in the back of the vehicle and the top closes on him and this last time, hit him hard in the head. This is a safety issue, what can we do??
NHTSA complaint #11632215 · source - Filed Apr 29, 2024ILOther / Unknown
My vehicle has two separate tire inflation placards. There is a placard inside the drivers door recommending 43 PSI (cold) all tires, and another placard inside the fuel door recommending 38 PSI front and 34 PSI rear (cold). Two different tire service centers have confirmed that my tires are wearing out prematurely because of overinflation. My telephone calls to Mercedes USA have been handled poorly because their representatives are poorly training and do not understand the…
NHTSA complaint #11585806 · source - Filed Oct 2, 2023MAEngine
Engine misfired in operation requiring an emergency stop while on a mountain road. Severe check engine light turned on (Mercedes has a two stage check engine light). Vehicle was parked for 20 minutes and battery was disconnected. This appeared to fix the issue. Vehicle was brought to dealer. Dealer stated the cylinder head for early 2021 GLA 250 engines had a casting flaw that result in hot gases escaping and damaging engine. Engine and turbo rebuilt under warranty at 17000…
NHTSA complaint #11547873 · source
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Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data, as of Oct 10, 2026. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology