See also:

Trailer towing
PARKTRONIC is deactivated for the rear area when you establish an electrical connection between your vehicle and a trailer. Fold in the ball coupling if the trailer tow hitch is not required. ...

Deactivating/activating PARKTRONIC
1 Indicator lamp 2 To deactivate/activate PARKTRONIC If indicator lamp 1 lights up, PARKTRONIC is deactivated. Active Park Assist is then also deactivated. PARKTRONIC is automatically ac ...

Ride & Handling
The GL has a unibody frame — rare among full-size SUVs — and its four-wheel-independent air suspension swaps traditional coil springs for inflatable air bladders. Ride height can be varied to enha ...