Electrical system: propulsion system: traction battery thermal: management: software (Mercedes-Benz)
Vehicle recall 23V-309. NHTSA received Mercedes-Benz USA, LLC’s report on May 2, 2023.
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The short answer
NHTSA received Mercedes-Benz USA, LLC’s report on May 2, 2023. Copied from NHTSA on Oct 28, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
A high-voltage battery monitoring system that does not alert the driver of a battery malfunction may increase the risk of an injury.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023 EQE 350, S580e, 2022-2023 EQS 450, EQS 580, 2022 AMG EQS 53, and EQS 450+ vehicles.
The high-voltage battery monitoring system software may not alert the driver of a battery malfunction.
As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 305, “Electric-powered vehicles: Electrolyte Spillage and Electrical Shock Protection.”
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
- NHTSA’s part: Electrical system: propulsion system: traction battery thermal: management: software.
What should you do?
Dealers will update the battery management system software, free of charge. Owner notification letters were mailed beginning August 18, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA’s number for this recall is 2023070013.
NHTSA, Recalls flat file. Released Oct 28, 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.nhtsa.gov.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 3,828 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 28, 2026. Updated daily.
Who is recalling it?
- Made by Mercedes-Benz USA, LLC.
NHTSA, Recalls flat file. Released Oct 28, 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 28, 2026 and checked Oct 28, 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 28, 2026.