2020 Mercedes-Benz GLB VIN Check, Recalls & Reliability
The 2020 Mercedes-Benz GLB has mixed reliability. There are 19 recalls and 56 owner complaints on file for the 2020 Mercedes-Benz GLB. Severity signals include 2 crash-related complaints and 1 fire-related complaint. The most commonly reported problem areas are: Structure (13), Unknown Or Other (10), Electrical System (9).
GLB reliability snapshot
Data sourced from Auto Reliability Index, aggregating NHTSA recalls, owner complaints, and RepairPal repair-cost records.
Used-car research
Research the Mercedes-Benz GLB before checking the VIN
Compare model years, recurring problems, safety campaigns and market value first. Then use the VIN to verify the history of the individual car.
Most-reported 2020 Mercedes-Benz GLB issues
Owner-reported problem categories from NHTSA complaint filings. Counts reflect complaints per category for the most-recent model year on file.
- Structure13
- Unknown Or Other10
- Electrical System9
- Air Bags7
- Engine4
- Suspension3
Pre-purchase inspection checklist for the 2020 Mercedes-Benz GLB
Hands-on checks distilled from real NHTSA complaint patterns and recall histories. Bring this list to a test drive or mechanic inspection.
- Inspect rear spoiler for secure attachment
- Test dashboard display for blanking out
- Check for abnormal fuel odors inside the cabin
- Verify airbag warning lights are not illuminated
- Listen for knocking sounds from the engine
- Ensure liftgate retracts properly and safely
- Inspect for any signs of water ingress in the cabin
2020 GLB recalls (19)
Every NHTSA safety recall logged against the 2020 GLB. A VIN check confirms whether any recall remains unrepaired on a specific vehicle.
- SERVICE BRAKES, HYDRAULIC, EQUIPMENTNHTSA 23V732000Nov 1, 2023
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."
Consequence: 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.
- ELECTRICAL SYSTEM, COMMUNICATIONNHTSA 22V365000May 20, 2022
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.
Consequence: 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 PREVENTIONNHTSA 22V232000Apr 8, 2022
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."
Consequence: 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.
- SUSPENSION, STEERINGNHTSA 21V990000Dec 17, 2021
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.
Consequence: Front axle carrier failure may result in a loss of steering control, increasing the risk of a crash.
Remedy
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.
- FUEL SYSTEM, GASOLINENHTSA 21V961000Dec 13, 2021
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019 AMG G63, C300, E300, G550, AMG GT63, AMG GT53, 2019-2020 A220, GLA250, GLC300, 2016 C300, 2020 AMG A35, AMG C43, AMG C63, CLA250, E350, E450, GLB250, GLE450, GLS450, GLS580, S560, and SL550 vehicles equipped with a gasoline engine. During the manufacturing process, particles may have been trapped between the fuel rail and injectors, which can cause a fuel leak.
Consequence: A fuel leak in the presence of an ignition source, such as hot engine or exhaust components, can increase the risk of a fire.
Remedy
Dealers will replace the fuel rail and fuel injectors, free of charge. Owner notification letters were mailed April 22, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for the recall is 2022030003.
- AIR BAGSNHTSA 21V639000Aug 13, 2021
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLB250 vehicles. In the event of a crash, the air bag control unit software may not activate the front seat belts and front passenger air bag properly.
Consequence: Air bags and seat belts that do not function properly can increase the risk of injury in a crash.
Remedy
Dealers will update the air bag control unit software, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
- ELECTRICAL SYSTEMNHTSA 21V526000Jul 12, 2021
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 GLB 250 vehicles. The accessory power outlet for the second-row seating may have excessive voltage due to an incorrect voltage converter socket.
Consequence: Excessive voltage through the accessory power outlet to a connected device can increase the risk of a fire.
Remedy
Dealers will inspect and replace the voltage converter, as necessary, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021080005.
- EXTERIOR LIGHTINGNHTSA 21V509000Jul 2, 2021
Mercedes-Benz LLC (MBUSA) is recalling certain 2018-2020 C300, 2019-2020 A220, AMG C43, AMG C63, 2020 GLE580, GLB250, 2020-2021 GLE450, GLE350, 2021 AMG GLE63, and AMG GLE53 vehicles. The LED headlights may have been incorrectly adjusted during a vehicle repair. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence: Incorrectly adjusted headlights may reduce visibility, increasing the risk of a crash.
Remedy
Dealers will replace the LED headlights, free of charge. Interim letters notifying owners of the safety risk were mailed August 13, 2021. A second notice will be sent once the remedy is available. Owner notification letters were mailed January 2022. Owners may contact MBUSA customer service at 1-800-367-6372.
- STRUCTURE, ELECTRICAL SYSTEMNHTSA 21V403000May 28, 2021
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 GLB250 vehicles. Water may enter through the wheel well area into the front occupant foot wells, potentially damaging certain electrical components. This may result in the instrument cluster going blank, an engine stall while driving, or the vehicle may not start.
Consequence: Either a blank instrument cluster display or an engine stall can increase the risk of a crash.
Remedy
Dealers will seal the vehicle body in the wheel well area and inspect the front foot wells for water intrusion, repairing as necessary, free of charge. Owner notification letters were mailed July 20, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020070009.
- AIR BAGSNHTSA 21V404000May 28, 2021
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 GLB250 vehicles. The side curtain air bags may not deploy properly during a crash.
Consequence: Air bags that do not deploy as intended can increase the risk of injury.
Remedy
Dealers will replace the side curtain air bags, free of charge. Owner notification letters were mailed on September 24, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
- AIR BAGSNHTSA 21V405000May 28, 2021
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 GLB250 vehicles. The front passenger air bag inflator and cushion may be improperly attached inside the air bag module, which could result in the air bag cushion tearing upon deployment.
Consequence: An air bag that does not deploy properly during a crash can increase the risk of injury.
Remedy
Dealers will replace the front passenger air bag module, free of charge. Owner notification letters were mailed July 16, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021060011.
- BACK OVER PREVENTION, ELECTRICAL SYSTEMNHTSA 21V354000May 14, 2021
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."
Consequence: 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.
- STRUCTURENHTSA 21V231000Apr 1, 2021
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.
Consequence: Detached spoilers can create a road hazard, increasing the risk of a crash or injury.
Remedy
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.
- STRUCTURENHTSA 21V232000Apr 1, 2021
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.
Consequence: Detached wheel arch covers can create a road hazard, increasing the risk of a crash or injury.
Remedy
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.
- ELECTRICAL SYSTEM, COMMUNICATIONNHTSA 21V058000Feb 5, 2021
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.
Consequence: 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.
- AIR BAGSNHTSA 20V628000Oct 9, 2020
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLB 250 vehicles. The window air bag in the A-pillar area may not be mounted correctly, affecting its performance. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 226, "Ejection Mitigation."
Consequence: In the event of a crash that deploys the window air bag, the catch strap could disconnect and increase the risk of injury.
Remedy
MBUSA will notify owners, and dealers will check the mounting of the window air bag and correct it as necessary, free of charge. The recall began October 30, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020100010.
- SEATSNHTSA 20V558000Sep 14, 2020
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLB250 vehicles. The second row seat may not be correctly aligned within the seat track on one side, possibly causing the seat to not lock properly into place.
Consequence: If the second row seat is not locked into place, there could be an increased risk of injury to the seat occupants in a crash.
Remedy
MBUSA will notify owners, and dealers will inspect the installation of the second row seat and correct it, if necessary, free of charge. The recall began October 23, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020090020.
- STRUCTURENHTSA 20V480000Aug 14, 2020
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLB250 vehicles. The rear spoiler above the tailgate may not have been welded correctly. This could result in parts of the spoiler detaching from the vehicle.
Consequence: If the spoiler detaches while driving, it can become a road hazard, increasing the risk of a crash.
Remedy
MBUSA will notify owners, and dealers will inspect the rear spoiler and replace it, if necessary, free of charge. The recall began October 23, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020090006.
- STRUCTURE, ELECTRICAL SYSTEMNHTSA 20V246000May 1, 2020
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLB 250 vehicles. Water may enter through the wheel well area into the front occupant foot wells, potentially damaging certain electrical components. This may result in the instrument cluster going blank, or an engine stall while driving without the ability to restart the vehicle.
Consequence: Either a blank instrument cluster display or an engine stall can increase the risk of a crash.
Remedy
MBUSA will notify owners, and dealers will seal the vehicle body in the wheel well area and inspect the front foot wells for water intrusion, repairing as necessary, free of charge. The recall began July 31, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020070009.
2020 Mercedes-Benz GLB on the road
23,185 2020 Mercedes-Benz GLB units were sold new in the US — a key signal for the size of today's used-market inventory.
How the 2020 Mercedes-Benz GLB stacks up against rivals
The most-shopped alternatives in the same segment. Each link opens a side-by-side reliability and cost comparison.
Reliability verdict for the 2020 Mercedes-Benz GLB
The 2020 Mercedes-Benz GLB presents an elevated reliability risk, scoring below the segment average. As the first model year of a new generation, it faces common initial production challenges. The 19 recalls are notably higher than typical for this segment, indicating potential quality control issues.
Complaints are distributed across several categories, with structure, electrical systems, and air bags being the most reported. This spread suggests that no single area dominates the concerns, but multiple systems may require attention. While engine complaints are fewer, the overall distribution indicates a broad scope of issues.
Given the combination of a below-average score and elevated recall count, potential buyers should be aware of the increased risk associated with this model year.
What you get in a 2020 Mercedes-Benz GLB report
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2020 Mercedes-Benz GLB — Frequently asked questions
Is the 2020 Mercedes-Benz GLB reliable?
The 2020 Mercedes-Benz GLB presents an elevated reliability risk, scoring below the segment average. As the first model year of a new generation, it faces common initial production challenges. The 19 recalls are notably higher than typical for this segment, indicating potential quality control issues.
How many recalls does the 2020 Mercedes-Benz GLB have?
19 NHTSA safety recalls have been issued for the 2020 Mercedes-Benz GLB. A VIN check confirms whether any remain unrepaired on a specific vehicle.
What are the most common 2020 Mercedes-Benz GLB problems?
The most-reported 2020 Mercedes-Benz GLB problem areas are: Structure (13), Unknown Or Other (10), Electrical System (9).
Should I run a VIN check on a 2020 Mercedes-Benz GLB?
Yes. A VIN report verifies title brands, odometer history, accident records, and recall completion on a specific 2020 Mercedes-Benz GLB, complementing the model-year reliability data on this page.
