2009 Saab 9-3 Owner's Manual - Page 174

93_US_MY09.book Page 174 Tuesday, April 15, 2008 10:30 AM 174 Starting and driving TCS indicator When the ignition switch is turned to the ON position, the lamp is lit for about 4 seconds while the system performs self-diagnosis. The light comes on when the TCS is operative, that is when one of the wheels has lost its grip. The fact that the TCS is operative indicates that the limit for grip has been exceeded and that the driver must exercise greater care. Disengage the system in Settings. 1 Select Settings using the steering wheel buttons, or . 2 Hold the SET button depressed until a chime sounds. 3 Select TCS. 4 Press the SET button. 5 Select ON or OFF. End by pressing the SET-button. Go back/undo using the CLR-button. The advantages of the TCS system are most apparent when road surface friction is so low that a lot of wheelspin can occur rapidly: • When the car is pulling away or accelerating with the front wheels on different surfaces (e.g. one slippery and one dry), the TCS functions like an electronic differential lock, making sure that both wheels rotate at the same speed. The system also functions when the car is reversing. • When cornering, if the inside front wheel rotates faster than the other wheels. Temporarily turning the TCS off The TCS is switched on automatically when the engine is started. It may be necessary to switch off the system if the car has become bogged down, for instance. If a fault is detected in the ABS, the TCS will be switched off automatically. The cruise control system (if active) will automatically be disengaged if the TCS is operative. TCS OFF lights up if: • The system has been switched off manually. It cannot be switched off if the car is travelling faster than 35 mph (60 km/h). • There is a fault in the ABS system • A fault has been detected and the system has therefore been switched off and at the same time the following message is shown on the SID: Traction control failure. Contact service.