2021 Mercedes-Benz S 500, 2021 Mercedes-Benz S 580 Recall: Air bag control unit software may deactivate the occupant recognition…
NHTSA campaign 21V789000 · Air Bags · filed Oct 11, 2021 · verified Jul 30, 2026
The defect
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.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
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.
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.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Mercedes-Benz | S 500 | 2021 |
| Mercedes-Benz | S 580 | 2021 |
Related recalls
More Mercedes-Benz S 500 recalls
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Other campaigns involving Mercedes-Benz vehicles
- 2026 Mercedes-Benz AMG GLE53 4MATIC+ and 13 other models — Bolts for the rear seat belts may not be tightened properly
- 2026 Mercedes-Benz CLA 250+ (ev) and 1 other model — Front passenger seat belt retractor may have been…
- 2025–2026 Mercedes-Benz AMG C43 4MATIC and 34 other models — Infotainment control unit may reset while the vehicle is in…
All Mercedes-Benz S 500 recalls → · All Mercedes-Benz recalls →
Source: NHTSA recall database, campaign 21V789000 (manufacturer number 2021100010). Data last verified Jul 30, 2026.