The truck only stores info on 4 sensors so it will have to be re-programmed when you swap from winter to summer and back to winter. Most tire shops can do this so you don't need to go to the dealer. IIRC, the programmer is too expensive to be practical to buy for your own use.
I'm receiving conflicting information between this thread (and others) and my selling dealership, from which I am scheduled to take delivery of a Trail Edition on 5/18/12.
I've already ordered an extra matching TE-style wheel to facilitate a five wheel (tire) rotation. My dealer tells me that the spare wheel/tire that comes with the vehicle has a TPMS that I can transfer to the new matching wheel that I just purchased (and still sits in the dealership's parts department). This thread indicates otherwise.
So my first question is, does the spare wheel/tire come with a TPMS as my dealer has indicated?
My second question is, can this TPMS be transfered to and used on the TE-style wheel that I just orderred?
My third question is, will my truck be able to read all five TPMS' and if so, will I be able to perform a five tire rotation without having to have my truck re-programmed each time that all five tires are rotated?
Immediately after taking delivery on Friday I am scheduled to have a nearby Belle Tire swap out my five stock Dunlops for five Firestone Destination ATs. One of the new Destination ATs would be installed on the extra TE wheel that I will take with me. It would be helpful to know in advance if I will need to pre-purchase and have on hand an additional TPMS.
Can anyone clarify this for me? This is all rather confusing.
Edit: A fifth TPMS is not needed. The spare steel wheel/tire or, in my case, a matching fifth TE wheel/tire can be used in a five tire rotation without causing the TPMS light on the dash to engage, because, the ECU will still read the original four sensors regardless of where they are located on the vehicle (assuming that the tires are properly inflated) Nothing to reprogram. Rotate away...