Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 1 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Fuel/propulsion System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports1 injury reports
What owners actually said
1 reports
1,000 miles · Jan 15, 2020
Fuel/propulsion SystemInjury
TL* THE CONTACT OWNS A 2020 MERCEDES-BENZ GLS450. THE CONTACT STATED SHE NOTICED A FUEL ODOR COMING FROM THE VEHICLE WHEN THE WINDOWS WERE OPEN. THE CONTACT SOUGHT MEDICAL ATTENTION DUE TO BREATHING PROBLEMS. THE VEHICLE WAS TAKEN TO LOCAL DEALER ED HICKS IMPORTS LOCATED AT 3102 S PADRE ISLAND DR, CORPUS CHRISTI, TX 78415 (361) …
Read full complaint
TL* THE CONTACT OWNS A 2020 MERCEDES-BENZ GLS450. THE CONTACT STATED SHE NOTICED A FUEL ODOR COMING FROM THE VEHICLE WHEN THE WINDOWS WERE OPEN. THE CONTACT SOUGHT MEDICAL ATTENTION DUE TO BREATHING PROBLEMS. THE VEHICLE WAS TAKEN TO LOCAL DEALER ED HICKS IMPORTS LOCATED AT 3102 S PADRE ISLAND DR, CORPUS CHRISTI, TX 78415 (361) 854-1955, WHERE IT WAS DIAGNOSED THE FIRST TIME WITH A MELTING STICKER ON THE CADILLAC AND IT NEEDING TO BE REMOVED. THE VEHICLE WAS REPAIRED BUT CONTINUE TO EXPERIENCE THE FAILURE. THE CONTACT STATED ON 12/21/2019, WHILE DRIVING 7 MPH, WHEN SHE HEARD MULTIPLE LOUD ABNORMAL NOISES (EXPLOSIONS). THE VEHICLE WAS TAKEN BACK TO THE SAME DEALER, WHERE IT WAS DIAGNOSED THAT THE CADILLAC CONVERTER AND TURBO NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED AS OF YET. THE MANUFACTURER HAD NOT BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS 1,000.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 CLA250, CLA250 4MATIC and CLA35 AMG 4MATIC, 2020-2021 GLE350, GLE350 4MATIC, GLE450 4MATIC, GLS450 4MATIC and GLS580 4MATIC and 2021 GLE53 AMG Coupe, GLE63S AMG 4MATIC, GLS63 AMG 4MATIC and Maybach GLS600 4MATIC vehicles. The instrument cluster software may deactivate the illumination of certain interior switches (switch bar, overhead control unit, steering wheel) if the hazard lights are turned on and the ignition switch is in the 'off' position. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 101, "Control and Displays."
Consequence & remedy
Consequence: If the interior switches are not illuminated, they may be more difficult to find and operate, increasing the risk of a crash.
Remedy: MBUSA will notify owners, and dealers will update the instrument cluster software, free of charge. The recall began March 31, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020030019.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE350, GLE350 4MATIC, GLE450 4MATIC, GLS450 4MATIC, and GLS580 4MATIC vehicles. The rear door window trim may detach.
Consequence & remedy
Consequence: The detached trim can become a road hazard, increasing the risk of a crash.
Remedy: MBUSA will notify owners, and dealers will inspect and fasten the rear door window trim, as necessary, free of charge. The recall began November 8, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019100011.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2020 MERCEDES-BENZ GLS450 Problems, Complaints & Recalls | Skip That Year
Illustration