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Mercedes-Benz seat switch may disable airbags in crash

NHTSA campaign 21V230000 · Reported 2021-04-01 · Mercedes-Benz USA, LLC

high How serious is it? About this label

Air bags and seat belts that do not perform properly in a crash can increase the risk of injury. The notice does not tell owners to stop driving.

What's wrong, in plain English

A small electrical switch that tells the car where the front seat is sitting may have a bad connection inside. If that connection fails, the driver and passenger airbags, and the seat belt parts that soften the belt's pull on your chest, may not work the way they should in a crash. The car drives normally, so you would have no way to notice the fault until a crash happens. Dealers replace the seat position switches at no charge.

What you should do

1. Enter your VIN at nhtsa.gov/recalls to confirm your car is included. 2. Call your Mercedes-Benz dealer, or MBUSA at 1-800-367-6372 (recall 2021040016), and book an appointment. 3. Have the seat position switches replaced — the repair is free.

Affected vehicles (7)

Who to contact

Mercedes-Benz — official Mercedes-Benz recall lookup

Customer service: 1-800-367-6372

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Official notice

Component
SEATS
Summary
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 C-Class, E-Class, E-Class Coupe and Convertible, GLC, CLS, AMG GT 4-door Coupe and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. 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.
Safety risk
Air bags and seat belts that do not perform properly in a crash can increase the risk of injury.
Remedy
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.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.