NHTSA recall 21V483000
A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.
| Published by | NHTSA (United States) |
|---|---|
| Campaign number | 21V483000 |
| Manufacturer's number | 2021080021 |
| Manufacturer | Mercedes-Benz USA, LLC |
| Reported | 2021-06-25 |
| Owners notified | 2021-09-24 |
| Component | SEAT BELTS:REAR/OTHER:RETRACTOR |
| Units potentially affected | 4917 |
| Part numbers | A21386008853D53,A21386008857M89,A21386008857P84,A21386008857P84,A21386024858U14, A21386007853D53,A21386007857P84,A21386007859C94,A21386023859C94, A21386016859C94,A21386034857P84,A21386034858U14,A21386034859C94, A21386016853D53,A21386016857M89,A21386016857P84,A21386016858U14, A46386026019C94, A46386055009C94, A46386056009C94 |
| Report | Annual report 3, for 2025 quarter 3 to 2026 quarter 2 |
|---|---|
| Filed with NHTSA | 2026-07-13 |
| Vehicles in the campaign | 4917 |
| Reported remedied | 4752 (96%) |
| Reported unreachable | 0 |
| Reported removed | 0 |
These are the manufacturer's totals for the whole campaign at the end of 2026 quarter 2, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026-10-19.
What is wrong
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."
What can happen
An unsecured child restraint system can increase the risk of injury during a crash.
The remedy
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.
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.
| 2021 MERCEDES-BENZ AMG CLS53 | |
|---|---|
| 2021 MERCEDES-BENZ AMG E53 | |
| 2021 MERCEDES-BENZ AMG E63 | |
| 2022 MERCEDES-BENZ AMG E63 | |
| 2021 MERCEDES-BENZ AMG G63 | |
| 2021 MERCEDES-BENZ AMG GT43 | Listed as a series or trim of this model. |
| 2021 MERCEDES-BENZ AMG GT53 | Listed as a series or trim of this model. |
| 2021 MERCEDES-BENZ AMG GT63 | Listed as a series or trim of this model. |
| 2021 MERCEDES-BENZ CLS 450 | |
| 2022 MERCEDES-BENZ CLS 450 | |
| 2021 MERCEDES-BENZ E 350 | |
| 2021 MERCEDES-BENZ E 450 | |
| 2021 MERCEDES-BENZ G 550 |
A vehicle with no link is not in this site's catalog, which covers cars, multipurpose vehicles and trucks by model year. The campaign is from data as of 2026-10-19.