The traction control on the PT senses when one wheel is spinning and pulses the brake to that wheel. It is certain not as effective a system as a limited slip differential. It does help somewhat on sand or gravel or wet pavement. It is tied into the anti-lock brake system and monitors the opposite characteristic (the anti-lock brake system determines when a wheel has stopped turning and pulses the brake on that wheel).
Since I have never driven my PT in snow, I will defer to others that have.
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2003 Almond GT AutoStick, body colored rear splash guards and hood struts, chrome gear shift, AC & vent knobs, billet steering wheel spokes and pedals, AMX1397 Turbo-Intake Pipe.
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