2013-2014 Cayenne – Manual

2013-2014 Cayenne – Manual

Page: 203

Driver Responsibility
Despite the advantages of transmission and chassis control systems, it is still the driver's responsibility to adapt his driving style and maneuvers in line with road and weather conditions, as well as the traffic situation.

The increased safety that is provided should not induce you to take greater risks with your safety. The limits set by the physics of driving cannot be overcome.

These systems cannot reduce the risk of accidents due to inappropriate speed.

  • Adapt your driving style, maneuvers and speed to the road and weather conditions, as well as the traffic situation.

Porsche Traction Management (PTM)
Porsche Traction Management (PTM) ensures the best possible power distribution to the four driven wheels on the front and rear axles. The system always controls power distribution in such a way that optimal propulsion is achieved, even on an unfavorable road surface.

PTM is active at all times and, unlike PSM, cannot be switched off.

Advantages of PTM

  1. Clearly perceptible improvement in traction, driving stability and steering ability of the vehicle.
  2. Better control of the vehicle when driven at its performance limits.
  3. Improved straight-ahead tracking and stability.
  4. The above features allow for a sportier chassis setup.
  5. Optimal drive torque distribution on all four wheels, depending on the driving program.

Porsche Torque Vectoring Plus (PTV Plus) (Cayenne, Cayenne S, Cayenne GTS, Cayenne Turbo, Cayenne Turbo S)
PTV Plus is a control system for lateral dynamic braking intervention for sportier and more agile cornering and features an electronically controlled rear differential lock.

PTV Plus improves steering behavior and steering precision with gentle braking interventions - which are not even noticed by the driver - on the inside rear wheel when cornering. The vehicle follows the steering angle of the front wheels more precisely.

Understeering at the stability limit is almost fully prevented. This in turn enhances the lateral-acceleration potential. Higher cornering speeds are then possible.

The electronically controlled rear differential lock continuously checks the driving situation of the vehicle and distributes the drive torque to the rear axle as required. This has the following advantages:

  1. Improved traction
  2. Reduced load change responses when cornering at speed
  3. Improved driving stability at higher speeds
  4. Off-road traction is also significantly improved due to the possibility of locking the rear axle fully.
    Please see the chapter "DRIVING PROGRAMS FOR ON-ROAD AND OFF-ROAD DRIVING" on page 198.

Porsche Stability Management (PSM)
PSM is an active control system for stabilization of the vehicle during extreme driving maneuvers.

Advantages of PSM

  1. Best possible traction and lane-holding ability in all driving situations – even on road surfaces with varying friction.
  2. The system compensates for undesired vehicle reactions (load-alteration effect) when the driver releases the accelerator pedal or brakes on corners. This compensation functions up to the maximum lateral acceleration.
  3. PSM actively stabilizes the vehicle as required during dynamic driving maneuvers (e.g. rapid steering movements, during lane changes or on alternating corners).
  4. Improved braking stability on corners and on different or varying road surfaces.
  5. Improved brake function and shorter stopping distance in the event of emergency braking.

Operational readiness
PSM is switched on automatically every time you start the engine.

Quick Index
View all Videos