Mercedes-Benz recalls 2021 C43 models with faulty seat position switches that may prevent airbags and seat belts from deploying properly in crashes. Owners must contact MBUSA for free replacement.
“Mercedes-Benz 2021 C43 Seats Recall: Airbag Malfunction Risk.” GovInfoNow, updated August 18, 2026. https://govinfonow.com/recall/80582-mercedes-benz-2021-c43-seats-recall-airbag-malfunction-risk. Based on NHTSA recall #21V230000 (https://www.nhtsa.gov/recalls?nhtsaId=21V230000).
NHTSA announced on Jan. 4, 2021, that Mercedes-Benz USA is recalling certain 2021 C-Class, E-Class, GLC, CLS, AMG GT and G-Class vehicles because faulty seat position switches may prevent air bags and seat belts from activating properly in a crash. Owners should have dealers replace the switches free of charge.
How to tell if you have it
Mercedes-Benz C300, 2021
Mercedes-Benz CLS450, 2021
Mercedes-Benz E350, 2021
Mercedes-Benz E450, 2021
Mercedes-Benz G550, 2021
Mercedes-Benz GLC300, 2021
Mercedes-Benz AMG C43, 2021
Mercedes-Benz AMG C63, 2021
Mercedes-Benz AMG C63 S, 2021
Mercedes-Benz AMG CLS53, 2021
Mercedes-Benz AMG E53, 2021
Mercedes-Benz AMG G63, 2021
Mercedes-Benz AMG GLC43, 2021
Mercedes-Benz AMG GLC63, 2021
Mercedes-Benz AMG GLC63 S, 2021
Mercedes-Benz AMG GT43, 2021
Mercedes-Benz AMG GT53, 2021
Mercedes-Benz AMG GT63, 2021
Mercedes-Benz AMG GT63S, 2021
What to do
MBUSA will notify owners, and dealers will replace the seat position switches, free of charge. Owner letters were mailed May 21, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
The hazard
A faulty electrical contact within the seat position switch may prevent the driver and passenger air bags and seat belt force limiters from properly activating during a crash, increasing the risk of injury.
Context
GovInfoNow's records show Mercedes-Benz USA, LLC has 66 other recalls on record since 2016-05-17. Other recent recalls include a 2026-10-02 Mercedes S-Class recall for front brake hose leak risk and a 2026-07-24 Mercedes-Benz AMG GLA 35 recall for vehicle rollaway risk. Similar recent recalls of air bag systems include a 2026-06-02 Mercedes-Benz Metris 2023 recall and a 2025-12-18 Chrysler 2025 RAM 5500 recall.
How to tell if you have this one
Check if your vehicle is a 2021 Mercedes-Benz C43 model. The recall covers specific vehicle models listed in MBUSA's recall report.
Brand
Mercedes-Benz
Category
Vehicle
Based on the official NHTSA remedy
What to do — step by step
Contact MBUSA
Call 1-800-367-6372 to schedule a free seat position switch replacement.
Official remedy
What NHTSA says to do
MBUSA will notify owners, and dealers will replace the seat position switches, free of charge. Owner letters were mailed May 21, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021040016.
How this recall unfolded
Recall timeline
Owners were mailed letters 5 months after NHTSA received the defect report.
1NHTSA received the defect report
2Owner letters mailed
Dates from the agency record only; steps without a date are left out.
Take action
Contact Mercedes-Benz
We’ve drafted a message you can send Mercedes-Benz to request your refund or repair — edit it as you like.
Subject: Recall 21V230000 — Mercedes-Benz 2021 C43 Seats Recall: Airbag Malfunction Risk
Hello,
I own a Mercedes-Benz 2021 C43 Seats Recall: Airbag Malfunction Risk that is covered by recall 21V230000 from Mercedes-Benz.
The official recall notice states: MBUSA will notify owners, and dealers will replace the seat position switches, free of charge. Owner letters were mailed May 21, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021040016.
I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this?
Thank you.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Plain-language summary written by qwen3:4b on August 18, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.