Posted: Jul 14 2006 at 7:31pm | IP Logged

my low tire pressure light comes on after about 50 to 75 miles of highway driving.I have been to 3 dealers for information or help. The first 2 told me the light would haveto be on before they could locate the problem.The last dealer told me there is a sensor in the spare tire. I checked the pressure and it was 4 pounds lower than the other four. I have not been out on the highway since. I think this will intresting because the spare has a regular rubber valve stem.

Posted: Jul 14 2006 at 7:35pm | IP Logged

the spare tire does NOT have a sensor ...

the system will turn on the light if one or more tires are 29psi or below, otherwise the light shouldnt come on, unless there is a problem with the system, your dealer can run a test with the consult II computer, the light does not need to be on for them to run the test