Mercedes-Benz Gls 450 Recalls

The Mercedes-Benz GLS 450 has 25 recalls covering 2018 through 2023, with the most serious being a steering coupling locking screw on 2022 models that can loosen and detach from the steering gear, causing complete loss of steering control.

On 2022 and 2023 models, the fuel pump can shut down without warning, cutting drive power while the vehicle is in motion. A separate fire risk affects 2019 through 2023 vehicles: a 48-volt ground connection under the front passenger seat can overheat if not properly secured, raising the risk of a cabin fire. The transmission software on 2020 through 2023 models can fail to complete a downshift in certain conditions, stalling the engine.

The 2020 model year carries the heaviest concentration of issues. Incorrectly installed air conditioner drain hoses on 2020 vehicles can allow water to pool in the front foot wells, where it can corrode or short-circuit electrical components and start a fire. A related wiring concern affects 2020 through 2022 models, where a loose ground cable bolt under the passenger seat can overheat the cable for the same reason. The rear crossmember on 2020 models may have insufficient welds at its seams, and towing stress can crack and eventually detach it, turning it into a road hazard. A fuel injector seal on 2020 models can leak near hot engine or exhaust components, creating a fire risk. The electronic stability control software on 2020 models can apply torque to a front wheel during an evasive maneuver, pulling the vehicle sideways unexpectedly. Front struts and rear shock absorbers on 2020 models can lose their seal and wear prematurely, degrading handling. On 2020 models equipped with the optional illuminated front grille star, a wiring conflict can disable power steering, the wiper motor, or the left headlight. The front airbag wiring harness on 2020 GLS 450 models may be routed incorrectly, preventing proper airbag deployment in a crash. The dashboard surface on 2020 models may not bond properly to its base, which can interfere with passenger airbag inflation. Third-row seatback locks on 2020 through 2022 models can fail in a crash, leaving rear occupants without proper restraint. Seats on 2020 models may have been assembled incorrectly and can fail to hold an occupant during a crash. Rear door window trim bars on 2020 through 2023 models can detach while driving and become road debris.

Going back to 2018, the braking system on that model year can deliver reduced stopping performance. The 2018 through 2022 model years have an eCall system that may fail to connect to emergency services or may report the wrong location after a crash. The 2020 model year also has a rearview camera that can display a black screen or fail to start up, removing rear visibility when reversing.