Ensure parking brake lever is completely in off position. If it is and Parking Brake warning lamp is still illuminated then the parking brake sensor is faulty, attached to parking brake lever.
The traction issue is an intermittent problem and is extremely difficult the exact cause of such a problem. The best thing you could do is to wait for the trac light and engine light to come on again, then have a repair shop use a diagnostic scanner on the vehicle to retrieve the trouble codes stored by the vehicle's computer. You can then start troubleshooting where the codes lead to.
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Thursday, April 9th, 2009 AT 5:57 PM