Forward collision avoidance: sensing system: radar (Mercedes-Benz)
Vehicle recall 19V-540. NHTSA received Mercedes-Benz USA, LLC.’s report on Jul 19, 2019.
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The short answer
NHTSA received Mercedes-Benz USA, LLC.’s report on Jul 19, 2019. Copied from NHTSA on Oct 19, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
An impaired Active Brake Assist may not automatically apply partial or full braking as expected, increasing the risk of a crash.
Mercedes-Benz USA, LLC.
(MBUSA) is recalling certain 2019 C300 Cabrio, C300A Cabrio 4MATIC, C300 Coupe, C300 Coupe 4MATIC, C300, C300 4MATIC, C43 AMG Cabrio 4MATIC, C43 AMG Coupe 4MATIC, C43 AMG 4MATIC, C63 AMG Cabrio, C63S AMG Cabrio, C63 AMG Coupe, C63S AMG Coupe, C63 AMG, C63S AMG, CLS450, CLS450 4MATIC, CLS53 AMG 4MATIC, E300, E300 4MATIC, E450 Cabrio, E450 Cabrio 4MATIC, E450 Coupe, E450 Coupe 4MATIC, E450 Wagon 4MATIC, E450 4MATIC, E53 AMG Cabrio 4MATIC, E53 AMG Coupe 4MATIC, E53 AMG 4MATIC, E63S AMG 4MATIC, E63S AMG Wagon 4MATIC, S450, S450 4MATIC, S560 Cabrio, S560 Coupe 4MATIC, S560, S560 4MATIC, S560 4MATIC Maybach, S63 AMG Cabrio 4MATIC, S63 AMG Coupe 4MATIC, S63 AMG 4MATIC, S65 AMG Cabrio, S65 AMG, and AMG GT53 Coupe 4MATIC vehicles, and 2020 GLC300 Coupe 4MATIC, GLE350 4MATIC, and GLE450 4MATIC vehicles equipped with the Driver Assistance Package.
A software error in the radar sensor control unit may impair the functionality of the Active Brake Assist.
NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.
- NHTSA’s part: Forward collision avoidance: sensing system: radar.
What should you do?
MBUSA will notify owners, and dealers will update the radar sensor control unit software, free of charge. The recall began September 13, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA’s number for this recall is 2019080008.
NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.
- How to reach the firm: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 1,957 vehicles potentially involved, across everything this recall names.
Each model year opens its own page: every recall naming it, its owner complaints and its crash ratings.
NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.
- Mercedes-Benz CLS 4502019
- Mercedes-Benz C 3002019
- Mercedes-Benz E 4502019
- Mercedes-Benz E 3002019
- Mercedes-Benz S 4502019
- Mercedes-Benz AMG E63S2019
- Mercedes-Benz AMG C432019
- Mercedes-Benz AMG CLS532019
- Mercedes-Benz AMG E532019
- Mercedes-Benz S5602019
- Mercedes-Benz AMG S632019
- Mercedes-Benz AMG S652019
- Mercedes-Benz AMG C632019
- Mercedes-Benz GLE 3502020
- Mercedes-Benz GLE 4502020
- Mercedes-Benz AMG GT532019
- Mercedes-Benz GLC 3002020
Who is recalling it?
- Made by Mercedes-Benz USA, LLC..
NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt. Owners’ complaints are counted on each vehicle’s page.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).
Released Oct 19, 2026 and checked Oct 19, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 19, 2026.