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The traction control system (TCS) on my 1997-2001 Grand Prix doesn seem to work like I think it should. How is it supposed to work?

April 26, 2017CONTROL Grand prix system TCS think traction

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The traction control system (TCS) on my 1997-2001 Grand Prix doesn seem to work like I think it should. How is it supposed to work?

1 Answer

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The ABS kicks in first, and if the ABS is not effectively reducing wheel spin, the PCM reduces engine torque by pulling spark. There are 7 modes of TCS, and as wheelspin continues, additional modes are activated, each with increasing spark reduction. As a last resort, injectors are turned off in a certain pattern. The low traction indicator only comes on when wheel spin occurs and not when the TCS is activated.