Car · Mercedes-Benz recalls
2021 Mercedes-Benz GLB-Class recalls
NHTSA lists 12 recall campaigns for the 2021 Mercedes-Benz GLB-Class, filed between February 5, 2021 and July 24, 2026. Each one is below with what is wrong and the free fix.
Check my VINCheck repair status at NHTSA
| Part | Filed | Risk |
|---|---|---|
| Latches/locks/linkages: lock | July 24, 2026 | Crash risk |
| Electronic stability control (esc): control module | September 12, 2022 | Fire risk |
| Electrical system: software | May 20, 2022 | Injury risk |
| Suspension: rear | May 9, 2022 | Crash risk |
| Back over prevention: display function | April 8, 2022 | Crash risk |
| Air bags: frontal | February 11, 2022 | Air bag |
| Suspension: front | December 17, 2021 | Crash risk |
| Air bags: side/window | November 5, 2021 | Air bag |
| Back over prevention: camera | May 14, 2021 | Crash risk |
| Structure: body | April 1, 2021 | Crash risk |
| Structure: tailgate | April 1, 2021 | Crash risk |
| Electrical system: software | February 5, 2021 | Crash risk |
Latches/locks/linkages: lockCrash risk
Trims named in this campaign: AMG GLB35, GLB250
What is wrong. 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.
What could happen. 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.
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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.
Electronic stability control (esc): control moduleFire risk
Trims named in this campaign: GLB250
What is wrong. The Electronic Stability Program (ESP) unit may be damaged, which can result in disabled anti-lock brakes (ABS), disabled electronic stability control (ESC), and an electrical short circuit.
What could happen. Disabled anti-lock brakes and electronic stability control can increase the risk of a crash or injury. An electrical short circuit increases the risk of a fire.
The fix. Dealers will replace the ESP unit, free of charge. Owner notification letters were mailed October 28, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022090009.
Show NHTSA's full text
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 GLB250 vehicles. The Electronic Stability Program (ESP) unit may be damaged, which can result in disabled anti-lock brakes (ABS), disabled electronic stability control (ESC), and an electrical short circuit.
Electrical system: softwareInjury risk
Trims named in this campaign: AMG GLB35, GLB250
What is wrong. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.
What could happen. 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.
The fix. 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.
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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.
Suspension: rearCrash risk
Trims named in this campaign: GLB250
What is wrong. The level sensor linkage on the rear axle might not have been installed properly, which could affect the headlight leveling function.
What could happen. Improperly leveled headlights may project a glare, which can impact other drivers and increase the risk of a crash.
The fix. Dealers will inspect and repair the level sensor linkage, as necessary, free of charge. Owner notification letters were mailed June 10, 2022. Owners may contact MBUSA customer service at 1-800-367-6372.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 GLB 250 vehicles. The level sensor linkage on the rear axle might not have been installed properly, which could affect the headlight leveling function. MBUSA's number for this recall is 2022050011.
Back over prevention: display functionCrash risk
Trims named in this campaign: AMG GLB35, GLB250
What is wrong. The rearview camera may not display the rearview image due to a software error.
What could happen. An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
The fix. 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.
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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."
Air bags: frontalAir bag
Trims named in this campaign: GLB250
What is wrong. These vehicles may be equipped with an incorrect front driver's air bag module.
What could happen. An incorrect air bag module may not properly restrain an occupant during a crash. In addition, the air bag module could detach from the steering wheel during deployment. Either of these scenarios can increase the risk of injury in the event of a crash.
The fix. Dealers will inspect and replace the front driver's air bag, as necessary, free of charge. Owner notification letters were mailed March 25, 2022. Owners may contact MBUSA customer service at 1-800-367-6372.
Show NHTSA's full text
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2021 GLB 250 vehicles. These vehicles may be equipped with an incorrect front driver's air bag module.
Suspension: frontCrash risk
Trims named in this campaign: AMG GLB35
What is wrong. The integral carrier that supports the front axle may corrode, causing it to fail.
What could happen. Front axle carrier failure may result in a loss of steering control, increasing the risk of a crash.
The fix. Dealers will inspect and replace the integral carrier, as necessary, free of charge. Owner notification letters were mailed July 29, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022070009.
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Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2021 AMG GLB35, 2019-2020 A220, and 2020 GLB250 vehicles. The integral carrier that supports the front axle may corrode, causing it to fail.
Air bags: side/windowAir bag
Trims named in this campaign: AMG GLB35, GLB250
What is wrong. The driver-side window air bag may not have been mounted correctly to the lower area of the A-pillar.
What could happen. The driver-side window air bag may not function properly during a crash, increasing the risk of injury.
The fix. Dealers will inspect the mounting of the driver-side window air bag and repair it as necessary, free of charge. Owner notification letters were mailed December 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 GLB 250 and AMG GLB 35 vehicles. The driver-side window air bag may not have been mounted correctly to the lower area of the A-pillar. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 226, "Ejection Mitigation."
Back over prevention: cameraCrash risk
Trims named in this campaign: AMG GLB35, GLB250
What is wrong. The MBUX multimedia system software may cause the display to remain black, or reboot after startup.
What could happen. A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
The fix. 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.
Show NHTSA's full text
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."
Structure: bodyCrash risk
Trims named in this campaign: GLB250
What is wrong. The wheel arch covers on the front fenders might not have been installed correctly, allow them to detach.
What could happen. Detached wheel arch covers can create a road hazard, increasing the risk of a crash or injury.
The fix. MBUSA will notify owners, and dealers will check the installation of the front wheel arch covers and correct them as necessary, free of charge. Owner letters were mailed May 21, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021040015.
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Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 GLB250 vehicles. The wheel arch covers on the front fenders might not have been installed correctly, allow them to detach.
Structure: tailgateCrash risk
Trims named in this campaign: AMG GLB35, GLB250
What is wrong. The side spoilers on the tailgate might not have been installed correctly, allowing them to detach.
What could happen. Detached spoilers can create a road hazard, increasing the risk of a crash or injury.
The fix. MBUSA will notify owners, and dealers will inspect and, if necessary, replace the side spoilers, free of charge. Owner letters were mailed July 2, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021050009.
Show NHTSA's full text
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 GLB35 AMG, and 2020-2021 GLB250 vehicles. The side spoilers on the tailgate might not have been installed correctly, allowing them to detach.
Electrical system: softwareCrash risk
Trims named in this campaign: AMG GLB35, GLB250
What is wrong. 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.
What could happen. Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
The fix. 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.
Show NHTSA's full text
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.
Check that your car is on the list
Most campaigns cover only cars built in a certain date range or at a certain plant, so a 2021 Mercedes-Benz GLB-Class may or may not be included. The VIN is the only sure test. It is 17 characters, on the dashboard by the windshield and on the driver door jamb sticker. Look up your VIN at NHTSA to see whether a campaign is open for your exact car.
How to confirm the repair is free
- Call any authorized Mercedes-Benz dealer service desk and give them the VIN and the campaign number from the list above.
- Ask them to confirm the campaign is open for your car. If it is, the parts and labor are covered.
- If the dealer says the part is not in stock, ask for a written note with the date, and ask about a loaner if the notice says not to drive the car.
- Keep the repair order. It shows the campaign number and proves the work was done.
If you already paid for a repair that a recall later covered, Mercedes-Benz may owe you a refund. Ask the dealer or Mercedes-Benz customer service about reimbursement, and keep your receipts.
Other model years of the GLB-Class
More: all Mercedes-Benz recalls, check-engine codes, car repair costs.
2021 Mercedes-Benz GLB-Class recall questions
How many recalls does the 2021 Mercedes-Benz GLB-Class have?
NHTSA lists 12 recall campaigns for the 2021 Mercedes-Benz GLB-Class. A campaign can cover only some cars of that model year, so check your VIN to see whether yours is included.
Is a recall repair on a 2021 Mercedes-Benz GLB-Class free?
Yes. A safety recall repair is free at an authorized Mercedes-Benz dealer, whatever the age or mileage of the car and no matter who owns it now.
How do I know if my 2021 Mercedes-Benz GLB-Class was already fixed?
Enter the VIN on NHTSA's recall lookup at nhtsa.gov/recalls. It shows whether a campaign is open for that exact car. You can also ask a dealer to run the VIN, or look at the service history paperwork for the campaign number.
Source: NHTSA recalls API, checked 2026-10-29. Text is NHTSA's wording of each campaign. New campaigns are added over time. Not a repair shop, estimates only.