Power-Transmission And Running-Gear Control Systems - Porsche Cayenne 2009 Owner's Manual

Power-Transmission and Running-Gear Control Systems

A complex interconnection of all control systems acting in power transmission and in the running gear has been realized in your Porsche.
All control systems have been linked with the aim of combining the best possible driving performance with maximum safety.
The following systems are involved:
System/designation
PTM
Porsche Traction Management
PTM Plus
Porsche Traction Management
PSM
Porsche Stability Management
Air suspension
with level control and height adjustment
PASM
Porsche Active Suspension Management
PDCC
Porsche Dynamic Chassis Control
Scope
– Full-time all-wheel drive
– Electronically controlled center differential lock
– Automatic brake differential (ABD)
– Traction control system (TCS)
– Reduction gear/Low Range
In addition to the PTM features, PTM Plus also includes:
– Electronically controlled rear differential lock
– Stability management system
– Anti-lock brake system (ABS)
– Brake system prefilling
– Brake booster
– Traction control system (TCS)
– Automatic brake differential (ABD)
– Engine drag torque control (MSR)
– Fully load bearing air spring struts with integral shock absorbers
– Air supply system with pressure accumulator
– Shock absorber system with adaptive, continuous shock absorber control
– Active chassis control system to stabilize roll tendency of vehicle body when driving
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Driving and Driving Safety