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2023 Mercedes-Benz GLB Problems, Recalls & Complaints

NHTSA recall campaigns and owner complaints for the 2023 Mercedes-Benz GLB, and what to keep if your vehicle keeps going back to the shop.

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Written by Amir Guerami, Attorney· Last reviewed

Recall campaigns

1

NHTSA owner complaints as of November 6, 2026, from NHTSA's complaint data files.

14

Data last refreshed (Eastern time)

November 6, 2026

NHTSA lists 1 recall campaign for the 2023 GLB and 14 owner complaints; the most-reported component in owner complaints is engine, with 5 reports.

Counts come from NHTSA records for this model year and refresh daily. Complaints are unverified owner reports; one complaint can name more than one component.

Top Reported Problems

Owner complaints grouped by NHTSA component (top 8). Linked components open a page comparing models for that problem.

  1. ENGINE5
  2. SERVICE BRAKES3
  3. POWER TRAIN3
  4. UNKNOWN OR OTHER2
  5. VISIBILITY:WINDSHIELD WIPER/WASHER1
  6. Carry Handle, Shell, Base1
  7. Other/I am not sure1
  8. VISIBILITY/WIPER1

2023 GLB Recall Records

Campaigns can apply only to specific configurations and production dates. Confirm whether your VIN is affected with NHTSA or the manufacturer.

LATCHES/LOCKS/LINKAGES:DOORS:LOCK · 26V481000

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.

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.

Check Your VIN at NHTSA

2023 GLB Service Bulletins

A service bulletin is a manufacturer's repair instruction to dealers. It is not a recall and does not by itself establish a defect or a claim.

Manufacturer communications filed with NHTSA for this model year, newest first. A bulletin may apply only to certain configurations. Source data refreshes daily.

NumberDateComponentSummaryNHTSA record
LI46.10-P-080896Sep 26, 2026STEERINGComplaint Slight creaking noises when steering. Cause Noises may come from one or more sleeves of the horn contact plate. Remedy Remove the horn contact plate and check the slee…11038188
LI42.10-P-078779Sep 22, 2026SERVICE BRAKESComplaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is similar to a tire or wheel vibration, it is usually readily noticea…11038186
LI82.60-P-080383Sep 15, 2026ELECTRICAL SYSTEMComplaint Radio station cover art does not refresh when switching stations. The UI continues to show the old station’s artwork instead of updating to the new one. Cause When a…11038174
LI82.62-P-078631Sep 14, 2026STRUCTURE:BODYComplaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise c…11038217
LI 27.10-P-080851Aug 29, 2026POWER TRAINComplaint Intermittent shift feel or thud/clunk noise perceived, such as a brief jerk or transmission reaction during certain driving situations. May be most noticeable when tra…11037211
LI27.19-P-080869Aug 29, 2026ELECTRICAL SYSTEMComplaint Temporary no start condition with check engine light and multiple warning messages. When performing a quick test, the following fault code is stored in Y3/14 ‑ Trans…11037210
LI27.19-P-080823Aug 25, 2026POWER TRAINComplaint Customers may report one or more of the following: • Transmission malfunction message • Check engine light illuminated • Shifts into N • Concern disappears aft…11036514
LI72.20-P-075746Aug 24, 2026STRUCTURE:BODY, ELECTRICAL SYSTEMComplaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket,…11036511
CL - Tank Leak DetectionAug 15, 2026FUEL/PROPULSION SYSTEMDear Mercedes-Benz Owner: In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz US…11036999
LI54.65-P-080132Aug 12, 2026ELECTRICAL SYSTEMComplaint 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5…11036142
LI82.62-P-078631Aug 6, 2026STRUCTURE:BODYComplaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise c…11036101
LI27.19-P-080823Aug 4, 2026POWER TRAINComplaint Customers may report one or more of the following: • Transmission malfunction message • Check engine light illuminated • Shifts into N • Concern disappears aft…11035713
EW - DMTLJul 31, 2026FUEL/PROPULSION SYSTEMThis NCU replaces the prior NCU issued on May 15, 2025, and contains additional MY 2023 and MY 2024 vehicles which are highlighted below. In our continuing efforts to ensure the…11035490
LI54.21-P-080326Jul 24, 2026ELECTRICAL SYSTEMComplaint CEL light on with no drivability concerns. Cause Signal timing error. Remedy 167, 465: SW has been released. Update the FSAM to the latest SW version. 290, 118, 243, 2…11035217
LI35.30-P-058566Jul 14, 2026POWER TRAINSingle throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of tr…11035005
LI82.60-P-080383Jul 8, 2026ELECTRICAL SYSTEMComplaint Radio station cover art does not refresh when switching stations. The UI continues to show the old station’s artwork instead of updating to the new one. Cause When a…11034888
LI54.21-P-080326Jul 2, 2026ELECTRICAL SYSTEM, ENGINEComplaint CEL light on with no drivability concerns. Cause Signal timing error. Remedy 167: SW has been released. Update the FSAM to the latest SW version. 465, 290, 118, 243, 2…11034506
PSL-NCU Return Parts 6/19Jun 19, 2026ENGINE, VISIBILITY/WIPERDear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadlin…11034064
LI00.20-P-080703Jun 12, 2026ELECTRICAL SYSTEMComplaint Service code B1 displayed in the customer menu does not match the workshop code displayed in the workshop menu, e.g., 505 or 550A, which includes a service A. Cause Th…11033855
LI82.85-P-080507May 26, 2026ELECTRICAL SYSTEMComplaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the instrume…11033185
All 2023 GLB records at NHTSA

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Build Your GLB Repair File

  • Dated repair orders with mileage and diagnosis
  • Whether the same symptom returned after the repair
  • Days unavailable, rental bills and dealer correspondence
  • Purchase or lease contract and warranty documents

Does My Mercedes-Benz GLB Qualify?

A model's recall history cannot answer that question. Your repair attempts, when the problem was first reported and the vehicle-coverage rules in Maryland or D.C. matter. A lawyer can review those facts rather than relying on a model-wide rating.

If Lemon Law does not cover your circumstances, federal warranty or other consumer claims may be worth discussing. No remedy is guaranteed.

Maryland Lemon Law guide D.C. Lemon Law guide Do I Qualify?

Other GLB Model Years

2026 GLB2025 GLB2024 GLB2022 GLB
All Mercedes-Benz GLB model years

Still Going Back to the Shop?

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