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2023 Mercedes-Benz GLB-Class problems, recalls and owner complaints
What the 2023 Mercedes-Benz GLB-Class has been recalled for and what owners report, from official government data. Updated October 25, 2026.
- 1safety recall
- 14owner complaints
- 0crash reports
- 0fire reports
- 0injuries reported
14 complaints, against an average of 15 for the other 6 Mercedes-Benz GLB-Class model years.
Every Mercedes-Benz GLB-Class model year with its number of owner complaints. Pick a year to compare.
What goes wrong with the 2023 Mercedes-Benz GLB-Class?
The components named most often in the 14 owner complaints. One complaint can name several, so the shares can add up to more than 100%.
Has the 2023 Mercedes-Benz GLB-Class been recalled?
1 U.S. safety recall. Repairs are free at a franchised dealer; some are done over the air.
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.
Risk: A vehicle rollaway increases the risk of a crash or injury.
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.
Is the 2023 Mercedes-Benz GLB-Class recalled in the UK or Europe?
Recalls issued by the UK's DVSA and through the EU's Safety Gate system that cover this model and build period. European models can differ from U.S. ones, and "years estimated" means the recall gave no build dates, so confirm your own car with your registration or VIN.
UK DVSASRPC2404 – Backup function of steering software
Risk: On affected vehicles the backup function of the steering software might not meet specifications. As a result the steering power support might be impaired and a loss of steerability cannot be ruled out.
Fix: Update the software of the electric steering on the affected vehicles.
EU Safety GateThe steering software may not correctly activate the fallback level in the event of a hardware failure.This could affect the power steering assistance and lead to the loss of steering capacity, increasing the risk of an accident.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Update of the electric steering software; Date of entry into force: Unknown; Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
What do 2023 Mercedes-Benz GLB-Class owners report?
12 of the 14 complaints, the most recent for the most-reported components, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.
My 2023 Mercedes-Benz GLB 250 4MATIC, with approximately 70,000 miles, developed an intermittent Check Engine warning and began running rough and shaking during operation. The vehicle was taken to an authorized Mercedes-Benz dealership for diagnosis. The dealer confirmed a major engine problem and determined that the cylinder head assembly requires replacement. I am concerned that the failure of a major internal engine component on a vehicle of this age and mileage could create a safety risk, particularly because the vehicle was running rough and shaking while being driven and the Check Engine…
NHTSA Recall 26V481 (Mercedes-Benz recall no. 2026070007). Interim owner notification letter dated September 18, 2026, titled "Replace Driver Door Lock." The micro-switch in the driver door lock may corrode and fail to detect an open driver door, which can prevent the electronic parking brake or "Auto-Park" feature from engaging automatically. This may result in a vehicle rollaway, increasing the risk of a crash or injury. Mercedes-Benz states in the interim letter that the remedy is not yet available and provides no date for when parts will arrive, leaving owners driving or parking a vehicle…
Safety Risk - Twice I was almost hit because my car didn't take off. O'REILLY Veri Scan Results - Free Emissions Status: Red Primary DTC: Mixture Formation (Cylinder 4) is irregular P219F: Fuel injectors measure and atomize fuel mixed with incoming air and sent to combustion chambers. Cylinder 4 PSI at 40 Mercedes Benz of San Juan $300 diagnostic Cylinder head needs to be replaced. Safety Risk - Twice I was almost hit because my car didn't take off. Problem has been confirmed by dealer. Not inspected by manufacturer, etc. Prior to failure there were no signs. Check Engine light came on and…
My 2023 Mercedes-Benz GLB 250 is experiencing engine misfires and fault codes consistent with a known cylinder head defect that is the subject of a recall affecting 2022 and earlier models. A certified mechanic has confirmed the issue aligns with the recall defect. Despite identical symptoms and engine configuration, my VIN is excluded. The condition results in loss of power and creates a potential safety hazard while driving. The following codes are referenced in the Mercedes recall and by recorded by the auto repair shop that provided an estimate for the repair: P1CEF85 - Injector injection…
Reporting because I see reports on other searches of this happening on other Mercedes Benz various years and models, the front stationary roof panel has shattered, cracked. I was lucky, my vehicle is only cracked (leaving my windshield components open to the weather , ie rain in Washington). Others report shattering while driving and having injuries from blowing glass. This appears to be an ongoing problem with Mercedes, they want over $2000 to fix a common problem with their vehicles.
On December 19, 2025, the vehicle showed lights that a sparkplug had misfired. The dealer notified me that in less than two full years of having the 2023 vehicle, it required a complete engine rebuild. This is the third major engine problem I have had with the vehicle with more than $20K in fees. The services performed in December 2025 repairs included Cylinder Head Assembly to Replace Engine Cylinder Head Assemble due to multiple cylinder head fault codes, including misfire, injector injection, and mixture formation code. Cylinder 2 is leaking out of the exhaust valve. Camshaft replacement…
Cylinder repair dealership said it's a known issue but Mercedes Benz said they will not cover the repair.
I was driving on Highway on May 19th and the Panoramic Sunroof suddenly shattered
Graco Turn2Me car seat is loosening over time when installed with the vehicle seatbelt and the SnugLock Lock-Off. The vehicle seat belt was also switched to a locked mode after proper installation and did not make a difference over time. The car seat continues to loosen over time to the point where it is moving more than an inch side to side at the belt path. This can cause injury to a child during a crash. Car seat has been installed with the assistance of certified Child Passenger Safety Technicians and Instructors on multiple occasions.
The contact owns a 2023 Mercedes-Benz GLB250. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power with the transmission warning light illuminated. The vehicle was towed to the dealer but was not diagnosed or repaired. Additionally, the contact stated that while driving at an undisclosed speed, the vehicle shuddered abnormally. There was no warning light illuminated. The manufacturer was made aware of the failure. The approximate failure mileage was 18,000.
The front brakes making noise when slow stop , Merced dealer service repair 3 time and replace rotor and brakes, but the problem still making noise. they said nothing he can do. want me to report NHTSA. thanks
The contact owned a 2023 Mercedes-Benz GLB35 AMG. The contact stated that while driving at an undisclosed speed, the brakes were inoperable. The contact stated that while depressing the brake pedal, the vehicle was not braking smoothly. Additionally, the vehicle failed to accelerate as intended. The contact stated that the transmission malfunction warning light was illuminated. The contact stated that the vehicle had been taken to the dealer four times. The contact stated that the first visit with the dealer regarding the brakes, the dealer applied lubricant to the brake pedal. The contact…
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2023 Mercedes-Benz GLB-Class: questions owners ask
Is the 2023 Mercedes-Benz GLB-Class reliable?
NHTSA data alone cannot rate reliability, but it shows what owners reported. Owners filed 14 complaints with NHTSA about the 2023 Mercedes-Benz GLB-Class; the most common categories were engine (5, 35.7%), power train (3, 21.4%), service brakes (3, 21.4%). There is 1 safety recall.
What are the most common problems with the 2023 Mercedes-Benz GLB-Class?
Across 14 owner complaints filed with NHTSA, the categories mentioned most often are engine (35.7% of complaints), power train (21.4% of complaints), service brakes (21.4% of complaints), base (7.1% of complaints), carry handle (7.1% of complaints). One complaint can name several components.
Does the 2023 Mercedes-Benz GLB-Class have any recalls?
Yes. NHTSA lists 1 recall for the 2023 Mercedes-Benz GLB-Class; the most recent (campaign 26V481000, 2026-07-24) concerns Latches/Locks/Linkages: Doors: Lock. Recall repairs are free at a franchised dealer; check your VIN at nhtsa.gov/recalls.
Check your own GLB-Class
Counts are a starting point, not a verdict: popular models collect more complaints because more of them are on the road, and NHTSA does not verify individual reports. To see whether a recall is still open on your car, enter your VIN at nhtsa.gov/recalls (U.S.) or your registration at check-vehicle-recalls.service.gov.uk (UK). Had a safety problem? Report it to NHTSA; complaints are what trigger investigations and recalls.
Data: NHTSA Office of Defects Investigation recall and complaint databases (public domain), DVSA vehicle recalls (Open Government Licence v3.0), EU Safety Gate alerts (© European Union), retrieved October 25, 2026. Model year 2023 only; combines NHTSA's entries for GLB 250 4MATIC and GLB-CLASS.