The problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2026 AMG GLC43 4MATIC, GLC 300 4MATIC, GLC 300, and GLC 300 4MATIC Coupe vehicles. The center rear seat belts may have been installed without the child seat protection function and fail to lock a child restraint properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection," and FMVSS number 209, "Seat Belt Assemblies."
The risk
In the event of a crash, an insufficiently restrained child has an increased risk of injury.
The fix
Dealers will inspect and replace the center rear seat belt assembly as necessary, free of charge. Owner notification letters were mailed May 15, 2026. Owners may contact MBUSA customer service at 1-800-367-6372. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning March 27, 2026.
Recall details
| NHTSA campaign | 26V-172 (26V172000) |
|---|---|
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Seat belts › Rear/other |
| Report date | March 20, 2026 |
| Owners notified | May 15, 2026 |
| Vehicles affected | 20 |
| Initiated by | Manufacturer |
Vehicles covered
Frequently asked questions
Is the recall 26V-172 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: Dealers will inspect and replace the center rear seat belt assembly as necessary, free of charge. Owner notification letters were mailed May 15, 2026. Owners may contact MBUSA customer service at 1-800-367-6372.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 20 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.