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Mercedes-Benz · Compact SUV

2020 Mercedes-Benz GLB-Class

Gas
Small Sport Utility Vehicle 2WD
2 EPA-rated configurations
Data refreshed 2026-09-11
F
Safety Signal
35 / 100 from the NHTSA recall record
Recalls2 critical20
Complaintsowner reports to NHTSA56
Crash ratingNHTSA overall—
Fuel economybest combined, EPA26 mpg
2026202520242023202220212020

The 2020 Mercedes-Benz GLB-Class is sold in the U.S. as a gas compact SUV with 2 EPA-rated configurations. The most efficient version, the GLB250, is EPA-rated at 26 mpg combined. NHTSA lists 20 recall campaigns for this model year, 2 rated critical, which gives it a Safety Signal grade of F. Owners have filed 56 complaints, most often about the structure.

Specs & fuel economy

Source: EPA fueleconomy.gov
ConfigurationPowertrainDriveEngine / motorCityHwyCombAnnual fuel*
GLB250GasFWD2.0L 4-cyl turbo233026$3,000
GLB250 4maticGas4WD2.0L 4-cyl turbo233126$3,000

*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 42180, 42184.

Factory warranty running out?

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Recalls (20)

Source: NHTSA recall database
▲high

Latches/Locks/Linkages

310,667 vehicles
ProblemMercedes-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.RiskA vehicle rollaway increases the risk of a crash or injury.FixDealers will replace the driver's door lock, free of charge. Owner notification letters are expected to be mailed September 18, 2026. 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 campaign 26V481000reported Jul 24, 2026Mercedes-Benz USA, LLC
▲high

Equipment

42,742 vehicles
ProblemMercedes-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."RiskDriving with worn brake pads can reduce braking ability, increasing the risk of a crash.FixDealers 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.
NHTSA campaign 23V732000reported Nov 1, 2023Mercedes-Benz USA, LLC
○minor

Electrical System

See Recall Schedule
242,722 vehicles
ProblemMercedes-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.RiskA 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.FixThe 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 campaign 22V365000reported May 20, 2022Mercedes-Benz USA, LLC
○minor

Back Over Prevention

2022060007
126,443 vehicles
ProblemMercedes-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."RiskAn inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.FixDealers 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 campaign 22V232000reported Apr 8, 2022Mercedes-Benz USA, LLC
▲high

Steering

2022070009
38,312 vehicles
ProblemMercedes-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.RiskFront axle carrier failure may result in a loss of steering control, increasing the risk of a crash.FixDealers 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.
NHTSA campaign 21V990000reported Dec 17, 2021Mercedes-Benz USA, LLC
!critical

Fuel System, Gasoline

2022030003
139 vehicles
ProblemMercedes-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.RiskA fuel leak in the presence of an ignition source, such as hot engine or exhaust components, can increase the risk of a fire.FixDealers 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.
NHTSA campaign 21V961000reported Dec 13, 2021Mercedes-Benz USA, LLC
○minor

Air Bags

2021080019
66 vehicles
ProblemMercedes-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.RiskAir bags and seat belts that do not function properly can increase the risk of injury in a crash.FixDealers 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.
NHTSA campaign 21V639000reported Aug 13, 2021Mercedes-Benz USA, LLC
!critical

Electrical System

2021080005
1,690 vehicles
ProblemMercedes-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.RiskExcessive voltage through the accessory power outlet to a connected device can increase the risk of a fire.FixDealers 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.
NHTSA campaign 21V526000reported Jul 12, 2021Mercedes-Benz USA, LLC
▲high

Exterior Lighting

2021120011
1,467 vehicles
ProblemMercedes-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."RiskIncorrectly adjusted headlights may reduce visibility, increasing the risk of a crash.FixDealers 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.
NHTSA campaign 21V509000reported Jul 2, 2021Mercedes-Benz USA, LLC
▲high

Air Bags

2021080012
16 vehicles
ProblemMercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 GLB250 vehicles. The side curtain air bags may not deploy properly during a crash.RiskAir bags that do not deploy as intended can increase the risk of injury.FixDealers 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.
NHTSA campaign 21V404000reported May 28, 2021Mercedes-Benz USA, LLC
▲high

Air Bags

2021060011
17 vehicles
ProblemMercedes-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.RiskAn air bag that does not deploy properly during a crash can increase the risk of injury.FixDealers 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.
NHTSA campaign 21V405000reported May 28, 2021Mercedes-Benz USA, LLC
▲high

Electrical System

2020070009
5,680 vehicles
ProblemMercedes-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.RiskEither a blank instrument cluster display or an engine stall can increase the risk of a crash.FixDealers 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.
NHTSA campaign 21V403000reported May 28, 2021Mercedes-Benz USA, LLC
○minor

Electrical System

2021050012
343,191 vehicles
ProblemMercedes-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."RiskA backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.FixThe 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 campaign 21V354000reported May 14, 2021Mercedes-Benz USA, LLC
▲high

Structure

2021050009
5,215 vehicles
ProblemMercedes-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.RiskDetached spoilers can create a road hazard, increasing the risk of a crash or injury.FixMBUSA 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 campaign 21V231000reported Apr 1, 2021Mercedes-Benz USA, LLC
▲high

Structure

2021040015
2,362 vehicles
ProblemMercedes-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.RiskDetached wheel arch covers can create a road hazard, increasing the risk of a crash or injury.FixMBUSA 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 campaign 21V232000reported Apr 1, 2021Mercedes-Benz USA, LLC
○minor

Electrical System

2021020025
1,292,258 vehicles
ProblemMercedes-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.RiskFailure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.FixMBUSA 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.
NHTSA campaign 21V058000reported Feb 5, 2021Mercedes-Benz USA, LLC
▲high

Air Bags

2020100010
7 vehicles
ProblemMercedes-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."RiskIn the event of a crash that deploys the window air bag, the catch strap could disconnect and increase the risk of injury.FixMBUSA 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.
NHTSA campaign 20V628000reported Oct 9, 2020Mercedes-Benz USA, LLC.
▲high

Seats

2020090020
36 vehicles
ProblemMercedes-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.RiskIf the second row seat is not locked into place, there could be an increased risk of injury to the seat occupants in a crash.FixMBUSA 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.
NHTSA campaign 20V558000reported Sep 14, 2020Mercedes-Benz USA, LLC.
▲high

Structure

2020090006
10,644 vehicles
ProblemMercedes-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.RiskIf the spoiler detaches while driving, it can become a road hazard, increasing the risk of a crash.FixMBUSA 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.
NHTSA campaign 20V480000reported Aug 14, 2020Mercedes-Benz USA, LLC.
▲high

Electrical System

2020070009
26 vehicles
ProblemMercedes-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.RiskEither a blank instrument cluster display or an engine stall can increase the risk of a crash.FixMBUSA 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.
NHTSA campaign 20V246000reported May 1, 2020Mercedes-Benz USA, LLC.

Owner complaints

Source: NHTSA complaint database
56complaints filed

2 involved a crash · 1 a fire · 3 injuries · 0 deaths reported

Filed per year: 2020: 13 · 2021: 8 · 2022: 10 · 2023: 5 · 2024: 9 · 2025: 5 · 2026: 6

Most-cited components

Structure13
Unspecified12
Electrical System9
Engine9
Suspension6
Air Bags6

What owners describe

“Complete engine failure mid driving on highway. NO engine light prior to complete engine failure. Vehicle has been towed to two different Mercedes Benz auto dealerships. Both service directors concur that this should not have occurred with zero warning and low mileage of 64,856 with an impeccable service record at Merc…”Aug 15, 2026 · Engine · NHTSA owner report
“I have a passenger malfunction with airbags warning coming. I also just experienced getting gas. My milage counted down to zero which it never has before and my engine light came on. I went and got gas 3 times spending around $70 and my gas mileage still says 0 and my engine light is on.”May 1, 2026 · Air Bags · NHTSA owner report
“The vehicle was operating normally the previous night. We drove it and parked it in the driveway that evening, and it was not used again after that. The following morning, we started the vehicle to allow it to warm up and then returned inside the house. Approximately 10 minutes later, we discovered the vehicle was on f…”Feb 10, 2026 · Engine · NHTSA owner report

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Crash ratings

Source: NHTSA NCAP

NHTSA has not published 5-Star crash ratings for this model year.

Other GLB-Class model years

A

2026 Mercedes-Benz GLB-Class

1 recalls · 1 complaints

B

2025 Mercedes-Benz GLB-Class

2 recalls · 1 complaints

B

2024 Mercedes-Benz GLB-Class

2 recalls · 6 complaints

A

2023 Mercedes-Benz GLB-Class

1 recalls · 12 complaints

A

2022 Mercedes-Benz GLB-Class

1 recalls · 14 complaints

F

2021 Mercedes-Benz GLB-Class

12 recalls · 36 complaints

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). Floor 35. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Complaint counts and NHTSA crash ratings are shown separately and are not blended into the grade.

EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed weekly.

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