Accessories and Optional Equipment: Service and Repair

Switching off PSM

Note!
^ The PSM (Porsche Stability Management) is automatically operational/switched on after each engine start!

Switching off PSM
Press the PSM OFF logo of the rocker switch. The PSM switches off after a short delay.

When the PSM is off, the PSM OFF warning light in the instrument panel and the indicator light in the rocker switch are lit.
^ When braking, the vehicle is also stabilized when the PSM is switched off!
^ One-sided wheel spin is also prevented when the PSM is switched off!
^ On Tiptronic vehicles, the function slip upshift is switched off when PSM is switched off! However, this is only as of model year 2002 (2 range).

The PSM should always be switched on for normal driving.

In exceptional cases, it can be advantageous to switch off the PSM temporarily:
- on a loose surface and in deep snow
- when rocking the vehicle free
- when using snow chains.

Switching PSM back on
Press the indicator light in the rocker switch. The PSM switches on after a short delay.

Characteristic features of Tiptronic vehicles (slip upshift)
^ When a maximum permissible speed difference between front and rear axle is exceeded, an integrated slip monitoring shifts into the next highest gear. This increases the driving stability on slippery roads.
^ When the PSM is switched off, the slip monitoring (slip upshift function), as of model year 2002 (2 range), is also switched off. In this way, the Tiptronic enables an active sporty driving style also when the friction coefficient is low as is the case with manual transmission vehicles.