What happens if I put winter wheels on w/out TPMS ?

Post by **fazool** » 25 Jul 2012, 21:43

My AWD 07S60 has TPMS. I've been thinking of getting junk wheels and winter tires and I found a set for a great price, locally. But I got to wondering what will my TPMS system do when it gets no signal at all from the sensors ?

Post by **fazool** » 26 Jul 2012, 06:32

My thoughts being either :

1) the sensor is normally NOT transmitting and low pressure sends a low pressure signal OR
2) the sensor failsafes and always sends a pressure "good" signal and when it loses the signal it declares low pressure?

Post by **jimmy57** » 26 Jul 2012, 12:02

You'll get a TPMS fail message on DIM screen with the TPMS lamp lit.

Post by **fazool** » 26 Jul 2012, 12:26

jimmy57 wrote:You'll get a TPMS fail message on DIM screen with the TPMS lamp lit.

Arg.....

thanks for info

Post by **jimmy57** » 26 Jul 2012, 12:35

You can thank the people who go left-right-left 90 degrees each way from center when the Firestone tread flies off after being run low for a few hundred miles on a hot day.
The bad part is vehicles with TPMS still go down the road with obviously run low for a long time tires. The lamp isn't enough of a deterrent. When the lamp comes on the accessory circuits need to shut down. No radio, a/c, cell phone charging, GPS, or DVD player for the kids. You know the tires will get aired up or repaired IMMEDIATELY when that happens.

Post by **fazool** » 26 Jul 2012, 14:08

You know, you said that half tongue-in-cheek but there's actually some interesting motivators in that. Several things could be motivated that way. I actually think its a great idea.

Have you ever seen the same car drive around your neighborhood for weeks without brake lights? Why do they do that? Or with a headlight out?