1999 Lexus SC 400 Owners Manual - Page 265
1999 Lexus SC 400 Manual
Page 265 highlights
STARTING AND DRIVING You can turn off the traction control system by pushing the "TRAC OFF" switch. The "TRAC OFF" indicator/ warning light will then come on. Pushing the "TRAC OFF" switch a second time turns the system back on and extinguishes the "TRAC OFF" indicator/warning light. You may hear a slight clicking noise in the engine compartment when the engine is started. This means that the traction control system is in the self-check mode, and does not indicate malfunction. When the traction control system is operating, you may feel vibration of your vehicle, caused by operation of the brakes. This indicates the system is functioning properly. When getting the vehicle out of mud or new snow, etc. the traction control system will help operate to prevent the wheels from spinning. 247
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