Your vehicle report

2021 Mercedes-Benz GLB 250

The problems owners report. The recalls to check. The evidence behind each.

NHTSA data through October 2026View original NHTSA data Change vehicle

Your vehicle at a glance

Complaint patterns and official recall records, kept distinct.

Owner complaints
29
Received Dec 2021 to Aug 2026
Official recalls listed
11
Naming this model year; check your VIN for applicability
BrakeNews flagged problems
1
Statistical signals, not official defect findings or recalls

Owner reports

Most reported problems

  1. 1
    Glass shatters or cracks without impact7 complaints · 24% of this vehicle’s complaints
  2. 2
    Engine knocking from rod or main bearings3 complaints · 10% of this vehicle’s complaints
See all reported problems

Official NHTSA records

Recalls to check

  • Recall #26V481000Mercedes-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.
  • Recall #22V679000Mercedes-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.
View recall details

BrakeNews signals

Flagged complaint patterns

Unusual complaint patterns with no matched recall yet. A flag does not mean a recall will happen.

How flags are identified

Complaint counts reflect reports submitted to NHTSA, not failure rates or a reliability ranking. Reported in these complaints: 0 crashes, 0 fires, 0 people injured, 0 deaths.

Explore by system

Where do owners report problems?

Choose an area on the car or a system below to explore the reported problems.

Schematic car with five system shortcutsGeneric side view, with the front on the left. Numbered links explore engine, brakes, steering, electrical, and body complaints. Text controls below provide the same choices.12345FRONTSCHEMATIC VIEW

Illustrative only; not this vehicle’s exact design. Areas represent complaint categories, not confirmed defective parts.

View selected problems

Showing all 2 listed problems by system.

Engine & powertrain

Brakes

No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.

Electrical & lights

No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.

Airbags, belts & seats

No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.

Steering, suspension & tires

No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.

Body, doors & glass

Driver assistance

No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.

Other

No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.

Complaint history

When NHTSA received these reports. Changes in reporting alone do not establish a change in failure rates.

Complaints received about the 2021 Mercedes-Benz GLB 250
3
Show as a table
MonthComplaints
December 20211
January 20220
February 20220
March 20221
April 20220
May 20220
June 20221
July 20221
August 20220
September 20221
October 20220
November 20220
December 20221
January 20231
February 20230
March 20230
April 20230
May 20231
June 20230
July 20231
August 20231
September 20230
October 20232
November 20230
December 20230
January 20241
February 20241
March 20240
April 20240
May 20240
June 20240
July 20240
August 20240
September 20241
October 20240
November 20240
December 20240
January 20250
February 20250
March 20250
April 20250
May 20250
June 20253
July 20250
August 20250
September 20251
October 20250
November 20252
December 20253
January 20261
February 20261
March 20261
April 20261
May 20260
June 20260
July 20260
August 20261
September 20260
October 20260
Total29

Problems owners report

Listed groups have at least 3 complaints. The page includes the 20 largest groups plus any additional flagged groups; some complaints are not assigned to a group.

ProblemComplaintsShareShare ratioStatus
Glass shatters or cracks without impact724%10.3×BrakeNews flag · First signal: Feb 2024
Model estimate of a matched recall within 24 months: 1.1%
Engine knocking from rod or main bearings310%–

AI groups complaints by meaning; the groups are approximate. Share ratio compares the problem’s share of this vehicle’s complaints with its share on other vehicles over the last 24 months (shown from 3 recent complaints). A 2× ratio means twice the complaint share, not twice the failure risk. Flags mark unusual shares or recent surges after an AI review of the complaint content. “First signal” does not mean the pattern has persisted continuously.How recall estimates are calculated.

Recalls

  • NHTSA recall #26V481000July 24, 2026310,667 vehicles affected

    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.

    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.

  • NHTSA recall #22V679000September 12, 20224 vehicles affected

    electronic stability control (esc): control module

    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.

    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.

    Remedy

    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.

  • NHTSA recall #22V365000May 20, 2022242,722 vehicles affected

    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.

    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.

  • NHTSA recall #22V314000May 9, 202288 vehicles affected

    exterior lighting: headlights; suspension: multiple axle; suspension: rear

    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.

    Improperly leveled headlights may project a glare, which can impact other drivers and increase the risk of a crash.

    Remedy

    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.

  • NHTSA recall #22V232000April 8, 2022126,443 vehicles affected

    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."

    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.

  • NHTSA recall #22V078000February 11, 202250 vehicles affected

    air bags: frontal

    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.

    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.

    Remedy

    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.

  • NHTSA recall #21V860000November 5, 202146 vehicles affected

    air bags: side/window

    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."

    The driver-side window air bag may not function properly during a crash, increasing the risk of injury.

    Remedy

    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.

  • NHTSA recall #21V354000May 14, 2021343,191 vehicles affected

    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."

    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.

  • NHTSA recall #21V231000April 1, 20215,215 vehicles affected

    structure: body: tailgate

    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.

    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.

  • NHTSA recall #21V232000April 1, 20212,362 vehicles affected

    structure: body

    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.

    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.

  • NHTSA recall #21V058000February 5, 20211,292,258 vehicles affected

    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.

    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.

Other model years

About this data

NHTSA complaints and recalls through October 2026. Complaints are counted once each, however many components they name. Original complaints are on NHTSA's page for the 2021 Mercedes-Benz GLB 250.

Problem groups are formed by AI and may be approximate. BrakeNews flags unusual complaint patterns; they are not official defect findings. Investigation reports are written and checked by AI, with no human review. Owner reports do not establish that a defect exists.

Read the methodology and track record · Check current recalls by VIN