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2023 Mercedes-Benz GLS-Class problems, recalls and owner complaints
What the 2023 Mercedes-Benz GLS-Class has been recalled for and what owners report, from official government data. Updated October 25, 2026.
- 0safety recalls
- 10owner complaints
- 0crash reports
- 0fire reports
- 0injuries reported
10 complaints, against an average of 26 for the other 8 Mercedes-Benz GLS-Class model years.
Every Mercedes-Benz GLS-Class model year with its number of owner complaints. Pick a year to compare.
What goes wrong with the 2023 Mercedes-Benz GLS-Class?
The components named most often in the 10 owner complaints. One complaint can name several, so the shares can add up to more than 100%.
What symptoms do 2023 Mercedes-Benz GLS-Class owners describe?
Found by reading the text of all 10 owner complaints. Tap a symptom for the answer, a real owner quote and any related recall.
Has the 2023 Mercedes-Benz GLS-Class been recalled?
NHTSA lists no safety recalls for the 2023 Mercedes-Benz GLS-Class as of October 25, 2026. Recalls can be issued at any time, so check your VIN before you rely on this.
Is the 2023 Mercedes-Benz GLS-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 DVSASRPC2405 - Bolting of 48V ground connectionBolting of 48V ground connection
Risk: On affected vehicles the 48V ground connection under the passenger seat might have come loose.
Fix: Check the bolting of the ground connection and correct it if necessary.
UK DVSASRPC 2402 - Downshift operation transmission software
Risk: On certain vehicles the software of the transmission control unit might not meet specifications.
Fix: Update the transmission control unit software on the affected vehicles.
UK DVSAOn affected vehicles the fuel pump impeller might not meet specifications and may deform.
Risk: On affected vehicles the fuel pump impeller might not meet specifications and may deform.
Fix: Replace the fuel pump module.
UK DVSAThe fixation of the trim bar at the rear door windows might not meet specifications
Risk: The fixation of the trim bar at the rear door windows might not meet specifications.
Fix: Check the fixation of the trim bars on the rear door windows and rework them if necessary.
EU Safety GateThe 48V ground connection under the passenger seat may have become detached in the assembly process.This can increase electrical transition resistance at the point of connection. This can lead to an overheated ground connection and create a risk of fire.
Measures: Type of economic operator taking notified measure(s): Other; Category of measure(s): other; Date of entry into force: Unknown
EU Safety GateInsufficient fastening of the bolts can cause the steering coupling to come loose from the steering spindle.This affects the steering capacity of the vehicle, creating a the risk of an accident.
Measures: 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
EU Safety GateThe locking mechanism of the third row of seats may malfunction, which increases the risk of injury in the event of an accident.
Measures: 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 GLS-Class owners report?
10 of the 10 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.
AT 0730 on 16 March, 2026 I was traveling northbound on XXX in [XXX] . Temp was 55 degress Farenheight and the wind was in excess of 20 knots. I was going 60 MPH. Suddenly a large "gun shot" sound echoed through the car startling me excessively. I thought the engine had blown up or all the vehicle tires exploded. I was able to gain control of the car and pull into the emergency lane where I quickly deteremined the Panoranmic Sun Roof had exploded and shards of glass where everywhere. There was no warning and this event was tramatic. Could have caused a serious accident. INFORMATION REDACTED…
The car recently underwent a software update at the dealership for a backup camera issue. When I was driving home on the highway, the car suddenly braked and the seat belts automatically tightened up. This happened 3 additional times on the highway about 5 days later. I had turned off the automatic braking system and it seemed to go away. Then, with the system off, we experienced this again yesterday while on the highway at 70mph. The braking lasts for 1-3 seconds. There is no audible alert or dashboard display. IT renders the car quite unstable as it feels as though the rear brakes are being…
Rear door window trim on driver's side detached from vehicle while traveling at highway speed.
There have been 3 incidents where the car responded to unknown stimuli by braking hard. 3 months ago it happened while making a left turn through an intersection, driving about 10 mph the brakes unexpectedly locked up, luckily the person behind me took evasive action and didn't hit me; 2 weeks later it happened again, I was driving on I-45 attempting to pass slower drivers, the brakes dramatically engaged while I was driving over a slight hill, today it happened again when it mistook a vehicle in a different lane of traffic, and performed a hard brake evasive measure even though there was no…
when coming to a stop and applying the break, the transmission stalled. a warning was issued around lane keeping assist and a second warning. Then the transmission light was on. It was not at risk in the moment because no one was behind me and I was coming to a stop sign. If it prevented me from stopping I might have gone through the stop sign It is at the dealership today to service. no warning lamps, messages or other symptoms.
The contact owns a 2023 Mercedes-Benz GLS450. The contact received notification of NHTSA Campaign Number: 23V880000 (Fuel System Gasoline) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact stated while driving approximately 10 MPH and making a left turn, the vehicle stalled. The contact stated that an unknown warning was illuminated; however, when the vehicle was restarted, the warning light was off. The vehicle was taken to…
Car just stopped abruptly on highway. We tried to shut off and restart. Nothing worked. All emergency signs showed up on dashboard. Highway road assistance guy tried to put it in neutral..it did nit work. We were scared to death siting on i 278 with trucks,buses coming behind us. Car just abruptly stopped
Twice the vehicle has stalled while driving. I see that there is a recall on my model for a faulty fuel pump which causes this problem, but my dealer claims my vehicle is not part of the recall even though it is having the same issue.
I have a new GLS450 and on two separate occasions the car has shut down at a stop with no warning. First time was approximately mid July of 2023 with about 1,700miles. While at a stop the instrument panel displayed a text box with the words “Malfunction” across the screen, and proceeded to shut down. After a minute we were able to restart the car. Took it back to the dealership and they were not able to get any codes or reason why it happened. Now 3 weeks later it happened again, and back at the same dealership from where I purchased it. Again, same story that they are not able to get any…
This is [XXX], a Mercedes customer who purchased a brand new 2023 GLS 450 (VIN:[XXX] ) in April 2023 from the Mercedes dealer in White Plains NY. I am contacting you about the Mercedes rusting claim. On May 22, 2023, less than a month after the purchase, a sheer of orange powdery rust was discovered (video available) on all steel frames of the four wheels. I contacted the sales person ([XXX]) , who referred to a manager ([XXX]) who told me that it was “normal because every car in our parking lot has the same thing.” I was very unhappy and disappointed with the response. The rusting obviously…
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2023 Mercedes-Benz GLS-Class: questions owners ask
Is the 2023 Mercedes-Benz GLS-Class reliable?
NHTSA data alone cannot rate reliability, but it shows what owners reported. Owners filed 10 complaints with NHTSA about the 2023 Mercedes-Benz GLS-Class; the most common categories were engine (4, 40%), service brakes (4, 40%), electrical system (2, 20%). There are no safety recalls listed for this model year.
What are the most common problems with the 2023 Mercedes-Benz GLS-Class?
Across 10 owner complaints filed with NHTSA, the categories mentioned most often are engine (40% of complaints), service brakes (40% of complaints), electrical system (20% of complaints), forward collision avoidance (20% of complaints), fuel system (10% of complaints). One complaint can name several components.
Does the 2023 Mercedes-Benz GLS-Class have any recalls?
As of October 2026, NHTSA lists no safety recalls for the 2023 Mercedes-Benz GLS-Class. Recalls can be issued at any time, so check your VIN at nhtsa.gov/recalls.
Why does my 2023 Mercedes-Benz GLS-Class stall, lose power or shut off while driving?
3 of the 10 owner complaints NHTSA has on file for the 2023 Mercedes-Benz GLS-Class (30%) describe the engine stalling, losing power or shutting off while driving. One owner wrote: "when coming to a stop and applying the break, the transmission stalled. a warning was issued around lane keeping assist and a second warning. Then the transmission light was on." (NHTSA complaint 11609931, August 2024). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Check your own GLS-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.