Tpms With Winter Snow Tires

[bridlewood]

I have purchased new rims with snow tires for my 2006 GS300 AWD. For the first 200 kms., there was NO warning light in the dash. Today, the warning lights came on, plus the message plus the red signal.

Help please.

[steviej]

Your title is confusing and your post is leaving out some information.

Did you or did you not install a set TPMS sensors in the new wheels?

If you did install a set:

1. Did you have the codes programmed into the ECU as set B and once programmed, did you put the set selector switch to set B. (this is covered in the owners manaul).

2. If you used the set from your original wheels, did you do a reinitiation of the TPMS system?

3. If you did install them, did the temperature take a dive in you area. The number one reason we get the TPMS sensor lights on a system that is installed properly is because the outside temperature drops. Tires loose 1 lb of air for every 10°F drop in temperature. If you system was initiallized at 29 psi when the outside temperature was 60°F, then the temps drops to 20° degrees, your TPMS lights will come on eventually. The TPMS system is rotational, meaning it can take some miles before the sensors set off the codes.

If you did not install a set:

1. that's why your warning lights went off.

steviej