Summary
The Mercedes-Benz GLS Class has 7 recalls covering 2017 and 2020 model years, with the most serious being a loose 48-volt ground connection bolt under the front passenger seat on 2020 models that can allow wiring to overheat and start a fire.
The remaining 2020 model year recalls cover several distinct issues. A misrouted air conditioning drain hose can allow water to leak onto electrical components inside the cabin, potentially shorting out the door locks, the emergency call system, or the engine management system, which can reduce power or prevent the vehicle from starting. A third-row seat backrest with incorrectly installed locking springs can fail to hold in position, allowing the backrest to shift in a crash and raise the risk of injury to rear occupants. There is also a tire placard error on 2020 models equipped with Michelin Primacy Tour A/S tires, where the label lists a maximum tire pressure of 47 psi instead of the correct 44 psi, though the manufacturer has confirmed the tires themselves can safely handle pressures above both figures. On 2017 models, the panoramic sunroof glass can separate from the vehicle while driving if the bonding between the front glass cover and the rear glass element does not meet specifications, creating a hazard for other traffic.
