2021 Mercedes-Benz Gls450 Recalls & Complaints

The 2021 Mercedes-Benz GLS450 has 12 recalls, the most serious being fire and stall risks: an unsecured 48-volt ground connection under the passenger seat can overheat and ignite, and the fuel pump or transmission can cut power while driving.

The fire risks extend further: incorrectly installed air conditioner drain hoses can let water pool in the footwells, where it can corrode wiring or cause electrical shorts. On the structural side, the rear window may not be adequately bonded to the tailgate and can detach while driving, and rear door window trim bars can also come loose, both creating road hazards. Third-row seatback locks may fail in a crash, leaving rear occupants without proper restraint.

Several recalls affect visibility and driver information. The backup camera display can go black or restart on startup, reducing rear visibility when reversing. Interior switches may lose their illumination, making them harder to locate while driving. Two separate recalls cover the emergency call system, which can either fail to connect or send responders to the wrong location after a crash. There is also a software issue where the transmission may not downshift properly, causing the engine to stall.