- Vehicles
- 7
- Built between
- Mar 2023 – May 2023
- Models
- 1
- Recall type
- Vehicle
- Initiated by
- Manufacturer
- Owners notified
- 23 August 2024
- Repaired
- 100%
- Unrepaired
- 0
Does this affect my vehicle?
This recall covers vehicles built between March 2023 and May 2023. If yours was built outside that window, it is not part of this recall.
- 2023 Mercedes-Benz GLC 300Built March 2023 to May 2023
Repair progress
The manufacturer reports every reachable vehicle in this recall has been repaired, as of Q4 2025.
100% repaired — 7 of 7 reported
Manufacturers file these figures with NHTSA each quarter. Vehicles the manufacturer could not trace, or that have been scrapped or exported, are counted separately and are not included in the unrepaired figure.
What the defect is
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023 GLC 300 4MATIC vehicles. Certain dashboard area bolts may have been insufficiently tightened, potentially causing improper air bag deployment or parts separation during a crash. In addition, the 12-Volt electric auxiliary heater connections may be loose, possibly causing the electrical wiring to overheat.
What could happen
An improper air bag deployment increases the risk of injury in a crash. Overheated wiring can increase the risk of a fire.
What gets fixed
Dealers will inspect and tighten the bolts as necessary, free of charge. Owner notification letters were August 23, 2024.
Parts involved
- Hexagon NutA0039905351Hexagon Nut
Part numbers are as filed by the manufacturer and are listed for reference. Your dealer will confirm the correct part for your vehicle.
Timeline
- Vehicles builtMarch 2023 to May 2023
- Recall reported to NHTSA8 July 2024
- Owners notified23 August 2024
- Latest repair reportQ4 2025 — 100% repaired
Your rights
A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.
That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 8 July 2024.
To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.
Manufacturer contact
Owner may contact MBUSA customer service at 1-877-496-3691.
Official source
- Recalling manufacturer
- Mercedes-Benz USA, LLC
- Recall initiated by
- MFR
Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.
Additional 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.safercar.gov.
Check your own vehicle
This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.
A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.