Porsche Cayenne Turbo Driver Manual page 310

D - Towing lug cover (left)
E - Emergency release cable
Emergency release for the spare wheel
bracket
If the battery is flat, the only way to open the spare
wheel bracket is by using the mechanical
emergency release.
310
Minor Repairs
Warning!
Danger of injury and risk of accident if the
spare wheel bracket is operated improperly.
f Perform emergency unlocking of the spare
wheel bracket only when the vehicle is on a
level surface.
1. Remove cover of left towing lug D.
2. Pull emergency release cable E in the direction
of the arrow.
The spare wheel bracket is now unlocked and
can be operated.