Side impact crash sensor connectors may loosen
Defect Summary
Mercedes-benz usa, llc (mbusa) is recalling certain 2021 cls450, amg e53, amg cls53, e350, e450, amg gt43, amg gt53, 2020 s450, s560, g550, amg glc63, 2020-2021 glc300, and amg g63 vehicles. the side crash sensor connectors may come loose, which could delay the activation of air bags and seatbelts during a side impact crash.
Safety Consequence
Air bags and seatbelts that don't function as intended can increase the risk of injury during a crash.
Corrective Action
Dealers will inspect and replace as necessary, the side impact crash sensors, free of charge. owner notification letters were mailed on september 3, 2021. owners may contact mbusa customer service at 1-800-367-6372. mbusa's number for this recall is 2021070032/33.
Similar Recalls
Other recalls from Mercedes-benz Usa, Llc or involving Air Bags.
FAQ: Recall 21V527000
Your rights, the repair process, and what each field on this page means.
What is recall 21V527000?
NHTSA recall 21V527000 was issued by Mercedes-benz Usa, Llc on July 12, 2021. It addresses: Side impact crash sensor connectors may loosen. The recall affects approximately 542 vehicles, with the defect involving the Air Bags component.
How do I get this recall repaired?
Contact any authorized Mercedes-benz Usa, Llc dealer and reference NHTSA recall ID 21V527000 or the manufacturer campaign number 2021070032/33. 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.