Seat belt locking retractor malfunction/fmvss 208
Defect Summary
Mercedes-benz, llc (mbusa) is recalling certain 2021 g550, amg g63, e350, e450, amg cls53, amg e53, amg gt43, amg gt53, amg gt63, 2021-2022 cls450, and amg e63 vehicles. the rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. as such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard number 208, "occupant crash protection."
Safety Consequence
An unsecured child restraint system can increase the risk of injury during a crash.
Corrective Action
Dealers will inspect, and replace as necessary, the rear seat belt assemblies, free of charge. owners notified of the voluntary recall campaign by an interim letter on august 13, 2021. a final letter was mailed on september 24, 2021. owners may contact mbusa customer service at 1-800-367-6372.
Similar Recalls
Other recalls from Mercedes-benz Usa, Llc or involving Seat Belts.
FAQ: Recall 21V483000
Your rights, the repair process, and what each field on this page means.
What is recall 21V483000?
NHTSA recall 21V483000 was issued by Mercedes-benz Usa, Llc on June 25, 2021. It addresses: Seat belt locking retractor malfunction/fmvss 208. The recall affects approximately 4,917 vehicles, with the defect involving the Seat Belts component.
How do I get this recall repaired?
Contact any authorized Mercedes-benz Usa, Llc dealer and reference NHTSA recall ID 21V483000 or the manufacturer campaign number 2021080021. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.