Hi there,
Check that the brake fluid level is not a bit low, some cars use the park light as the low brake fluid warning, and if the fluid is a bit low the movement of the car may be just enough to trigger the warning light, if the fluid level is ok, re post this info and I will check out the electric circuit for the switch.
Mark (mhpautos)
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Tuesday, January 15th, 2008 AT 9:50 AM