had snow tires mounted inflation light?

gone2green · 12-21-2007, 05:54 PM

I had snow tires mounted on the stock rims today, the question is should not have the underinflation light come on?

they did not reset anything.

how to check if the warning system is working?
thanks in advance

JHSmith · 12-21-2007, 09:01 PM

Quote:

Originally Posted by gone2green

I had snow tires mounted on the stock rims today, the question is should not have the underinflation light come on?

they did not reset anything.

how to check if the warning system is working?
thanks in advance

If you originally had your TPMS set for 40 psi and they filled your replacement tires to more than 30 psi, then there would be NO alarm. (Assuming the TPMS sensors stayed on the tires.)

To check the system:

1) Measure your present tire pressure,
2) Reset your TPMS system,
3) Lower your pressure by at least 25 % (original: 40, lower it to less than 30 psi -- 1/4 of 40).
4) Check your system. You may need to drive a little before the light comes on.

Be SURE to REFILL your tires after you're through.

This works in my TCH, but YPMV (Your Prius May Vary), however, in this case, I doubt it.

p10leadman · 12-27-2007, 03:19 PM

I too, just bought a set or snow tires on rism all mounted, do not know if there is a TPMS sensor insdie or not.....will this harm anything? Other than Toyota, where can I buy the sensors?

12-21-2007, 05:54 PM	#1
gone2green Junior Member Join Date: Mar 2007 Posts: 25 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	had snow tires mounted inflation light? I had snow tires mounted on the stock rims today, the question is should not have the underinflation light come on? they did not reset anything. how to check if the warning system is working? thanks in advance

12-27-2007, 03:19 PM	#3
p10leadman Junior Member Join Date: Dec 2007 Location: Maine, USA Posts: 3 My Car: 2007 Prius Model: Package: N/A Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Re: had snow tires mounted inflation light? I too, just bought a set or snow tires on rism all mounted, do not know if there is a TPMS sensor insdie or not.....will this harm anything? Other than Toyota, where can I buy the sensors?