2017 Mercedes-Benz Gls-Class recalls & complaints
Source: NHTSA, updated daily. Last checked 2026-10-19. Recalls apply to specific VINs — run your VIN to confirm.
Recalls: check by VIN
Useful for owners
- OBD2 code reader — see what the car's computer is reporting
- Compact car fire extinguisher
- 2017 Mercedes-Benz Gls-Class owner's manual
Owner complaints filed with NHTSA
Most complained-about parts: Unknown Or Other (10), Engine (9), Electrical system (8), Fuel system (7), Lights (6).
Complaints are unverified reports from owners. A pattern (many complaints about the same part) matters more than any single one.
Read recent complaints (8)
08/30/2026 · Engine · fire
On 8/20/2026 I had a vacuum leak from the intake manifold and crankcase hoses repaired at a Vic's Bimmer Shop in the city of Lancaster California. This included the replacement of the oil separator breather on the engine. I drove my Mercedes Benz 2017 GLS450 less than 100 miles and the engine lost power and suddenly turned off. I was able to pull off onto t…
07/02/2026 · Seats
I was driving around and my [XXX] daughter was complaining that the seat was getting super hot . I told her to stop playing with the seat warmer she then replied she was not . I kept driving and then she again told me it was burning her so i pulled over and saw that her leg was super red and i saw the seat was pretty melted . I called mercedes care center…
01/24/2026 · Forward Collision Avoidance · crash
Car did not brake when going about 5-7mph and crashed into another car.
01/14/2026 · Electrical system
The contact owns a 2017 Mercedes-Benz GLS450. The contact heard an abnormal humming sound when the vehicle was started, and the humming sound grew louder over time. The contact believed that the humming sound was coming from the driver's side headlamp. The contact stated that the headlamp was equipped with a small internal fan to dissipate heat. Additionall…
10/24/2025 · Transmission / drivetrain
My 2017 Mercedes-Benz GLS 450 is experiencing serious and unpredictable transmission behavior related to the valve body and shifting mechanism. The transmission sometimes fails to engage Park, shifts on its own without driver input or attempts to engage Reverse unexpectedly. On multiple occasions the vehicle has moved or rolled after being placed in Park an…
10/13/2025 · Engine · fire
On July 23, 2025, I drove my Mercedes-Benz GLS 450 to a medical appointment. After arriving, I parked near the valet station, turned off the car, and went inside to check in at LabCorp. Within two minutes, witnesses reported black smoke from the hood — followed by a violent explosion that shook the office building and triggered a multi-unit response from lo…
08/05/2025 · Fuel system
Feel unsafe fuel rails and more where recalled in April 2022 Not all gls550 were recalled at the time due to no reason Drive to Florida with my wife and kids and car gave up on the side of a bridge hwy over the ocean We were stuck car smelt like gas and wouldn’t turn on we had nowhere to get out on a 25ft bridge with no ac no emergency lanes with 5 kids…
06/14/2025 · Unknown Or Other
Vehicle Information: Make: Mercedes-Benz Model: GLS 450 Year: 2017 Component: Visibility/Sunroof/Panoramic Glass Roof VIN: [XXX] Incident Date: [XXX] Complaint Summary: I am filing this complaint regarding a serious and dangerous safety defect in my 2017 Mercedes-Benz GLS 450. Without warning and while driving, the panoramic glass sunroof suddenly shattere…