Mercedes-Benz Air Bags: Software

Mercedes-Benz is recalling about 1,311 vehicles over a problem with the air bags. A deactivated passenger air bag increases the risk of injury during a crash.

Campaign
21V789000
Manufacturer
Mercedes-Benz USA, LLC
Reported
11 October 2021
Vehicles
1,311
Built between
Not published
Models
2
Recall type
Vehicle
Initiated by
Manufacturer
Owners notified
1 December 2021
Repaired
96%
Unrepaired
51

Does this affect my vehicle?

The manufacturer did not publish a build-date range for this recall, so the model and year list below is the only way to tell whether your vehicle is covered.

  • 2021 Mercedes-Benz S 500
  • 2021 Mercedes-Benz S 580

Repair progress

51 of 1,311 vehicles in this recall had still not been repaired as of Q3 2023.

96% repaired — 1,260 of 1,311 reported

Manufacturers file these figures with NHTSA each quarter. Vehicles the manufacturer could not trace, or that have been scrapped or exported, are counted separately and are not included in the unrepaired figure.

What the defect is

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.

What could happen

A deactivated passenger air bag increases the risk of injury during a crash.

What gets fixed

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.

Parts involved

  • Software AirbagA2239023717Software Airbag
  • Software AirbagA2239029513Software Airbag
  • Software AirbagA2239029613Software Airbag
  • Software AirbagA2239029617Software Airbag
  • Software AirbagA2239029713Software Airbag
  • Software AirbagA2239029813Software Airbag

Part numbers are as filed by the manufacturer and are listed for reference. Your dealer will confirm the correct part for your vehicle.

Timeline

  1. Recall reported to NHTSA11 October 2021
  2. Owners notified1 December 2021
  3. Latest repair reportQ3 2023 — 96% repaired

Your rights

A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.

That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 11 October 2021.

To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.

Manufacturer contact

Owners may contact MBUSA customer service at 1-800-367-6372.

Official source

Manufacturer's recall number
2021100010
Recalling manufacturer
Mercedes-Benz USA, LLC
Recall initiated by
MFR

Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.

Additional notes

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 your own vehicle

This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.

A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.

Same component

Same brand