I'm just mad about the whole deal, I have to buy a $600 tool that just resets the TPMS system so I can rotate customers tires (some have specific loctions) and customers dont understand that it takes more time (money) and special tools (more money) so they are iritated that I charge more to rotate their tires.

Whats most likely happening is the spare tire is sending a signal that it is not turning and setting a fault code then turning the light on. You may have to remove the sensor in the spare as this system will not recognize 5 tires.

Ducit Amour Hybridae
Mark Smith
Master Certifited Technician
Tempus non reparabilis fugit
"It isn't pollution that's harming the environment. It's the impurities in our air and water that are doing it."

Best Tank 35.0 MPG