Mercedes-Benz GLE Coupe 2023 Operator's Manual page 416

414 Display messages and warning/indicator lamps
Display messages Possible causes/consequences and
* The tailgate is open.
A
* The seat backrest of the corresponding seat is not engaged.
_
2nd Seat Row, Center Not
Locked
* The left seat backrests on the second row of seats cannot be folded forward.
_
Cannot Fold Forward 2nd
Seat Row, Left Adjust
Front Seat
Solutions
M
& DANGER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust gases such as carbon monoxide. Exhaust gases can enter the vehicle
interior if the tailgate is open when the engine is running, especially if the vehicle is in motion.
Always switch off the engine before opening the tailgate.
#
Never drive with the tailgate open.
#
Close the tailgate.
#
Fold the seat backrest back until it engages.
#
Adjust the corresponding front seat.
#