Failsafe mode
WARNING: This page is about a different car, the 2008 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
Most diagnostic trouble codes are generated as a result of the control module switching off all-wheel drive or the limited slip differential clutch (if fitted) in order to protect the system from damage or aggravated damage. A message is shown in the SID display.