Campaign 24V-520

Certain dashboard area bolts may have been insufficiently tightened, potentially causing improper air bag deployment or parts separation during a…

Defect summary

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.

Consequence

An improper air bag deployment increases the risk of injury in a crash. Overheated wiring can increase the risk of a fire.

Remedy

Dealers will inspect and tighten the bolts as necessary, free of charge. Owner notification letters were August 23, 2024. Owner may contact MBUSA customer service at 1-877-496-3691.

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.

Source: NHTSA ODI recalls file, campaign 24V520000. Text as published by NHTSA.

Vehicles covered

One product line is covered

Owner complaints filed with NHTSA about structure on these vehicles: 4, of which 2 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 24V-520
Make	Model	Model years	Complaints on this component
Mercedes-Benz	GLC 300	2023	4

Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.

Investigation

No NHTSA investigation is linked to this recall

Most recalls are started by the manufacturer. This one lists "Manufacturer" as its origin.

Before the recall

9 service bulletins on this component came first

Distinct manufacturer communications on the same component group, make, model and model year in the 24 months before the report date.

Source: NHTSA manufacturer communications file.

Service bulletins

25V-379 Jun 6, 2025
In certain crash scenarios, where the rear occupant's head contacts the C-pillar, the pillar may not absorb an adequate amount of the impact
24V-658 Sep 9, 2024
Integral carrier that supports the engine may fail due to improper welds, which can cause a loss of vehicle control
23V-854 Dec 15, 2023
Front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair,…
23V-741 Nov 3, 2023
Front, rear, and fixed side windows may not be properly secured and can detach
23V-555 Aug 4, 2023
Absorbers in the roof frame may not be secured properly and can detach during window air bag deployment
23V-178 Mar 17, 2023
Rear door window trim bars may detach from the vehicle while driving