The problem
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2021 S500, S580, and Maybach S580 vehicles. The air bag control unit software may deactivate the occupant recognition control unit, resulting in a deactivated front passenger air bag.
The risk
A deactivated passenger air bag increases the risk of injury during a crash.
The fix
Dealers will update the air bag control unit software, free of charge. Owner notification letters were mailed December 1, 2021. MBUSA's number for this recall is 2021100010. Owners may contact MBUSA customer service at 1-800-367-6372.
Recall details
| NHTSA campaign | 21V-789 (21V789000) |
|---|---|
| Manufacturer number | 2021100010 |
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Air bags › Sensor › Occupant classification › Front passenger |
| Report date | October 11, 2021 |
| Owners notified | December 1, 2021 |
| Vehicles affected | 1,311 |
| Initiated by | Manufacturer |
Vehicles covered
Frequently asked questions
Is the recall 21V-789 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: Dealers will update the air bag control unit software, free of charge. Owner notification letters were mailed December 1, 2021. MBUSA's number for this recall is 2021100010. Owners may contact MBUSA customer service at 1-800-367-6372.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 1,311 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.