# Tire pressure sensor **URL:** \ **Category:** General Discussion\ **Created:** [October 18, 2013, 11:32pm UTC](https://community.cartalk.com/t/tire-pressure-sensor/81830 "2013-10-18T23:32:48Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![badbearing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/badbearing/32/10683_2.png) [@badbearing](https://community.cartalk.com/u/badbearing)\ **Post date:** [October 18, 2013, 11:32pm UTC](https://community.cartalk.com/t/tire-pressure-sensor/81830/1 "2013-10-18T23:32:48Z")
2005 rav4 tire pressure light is on. The tires are over size. All are up to pressure (29lbs) It says 29 on the door. I can reset the pressure light but it comes back on. ---
**Author:** ![lion9car](https://avatars.discourse-cdn.com/v4/letter/l/59ef9b/32.png) [@lion9car](https://community.cartalk.com/u/lion9car)\ **Post date:** [October 19, 2013, 12:42am UTC](https://community.cartalk.com/t/tire-pressure-sensor/81830/2 "2013-10-19T00:42:08Z")
Is this one of the cars that has a sensor in the spare tire? If so, check the pressure in that. ---
**Author:** ![badbearing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/badbearing/32/10683_2.png) [@badbearing](https://community.cartalk.com/u/badbearing)\ **Post date:** [October 19, 2013, 1:09am UTC](https://community.cartalk.com/t/tire-pressure-sensor/81830/3 "2013-10-19T01:09:56Z")
I did check the spare. Pressure was good and it’s on a different rim. So I don’t know if it has the sensor. The light comes back on minutes after resetting it. ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [October 19, 2013, 1:25am UTC](https://community.cartalk.com/t/tire-pressure-sensor/81830/4 "2013-10-19T01:25:01Z")
This vehicle has an indirect TPM system, no sensors. The system should be “Re-initialized”. Here is some information from a Toyota bulletin; Determine if the system must be reset or re-initialized. Reset — The system requires “reset” after the light is “ON” and air pressures have been adjusted or a flat repair was performed and the same tire has been reused. (If the tire was replaced, initialization must be performed.) Re-initialization — The system requires “initializing” after tire, wheel or suspension component replacement, after alignment, or after rotating the tires. A. To reset the TPWS (does not require initialization), press the TPWS “SET” button, hold for 1 – 2 seconds until the TPWS light turns off, and then release the button. This resets the tire pressure system monitor. B. To re-initialize the TPWS, such as after rotating or replacing tires, press and hold the TPWS “SET” button until the TPWS light blinks 3 times in 1 second intervals. Release the “SET” button after the light completes 3 blinks. This clears all memorized system data and starts the initialization process. After this procedure has been performed, it will be necessary to drive the vehicle to complete the initialization process. ---
**Author:** ![badbearing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/badbearing/32/10683_2.png) [@badbearing](https://community.cartalk.com/u/badbearing)\ **Post date:** [October 19, 2013, 1:31am UTC](https://community.cartalk.com/t/tire-pressure-sensor/81830/5 "2013-10-19T01:31:08Z")
That sounds like a plan. I will try the 3 blinks thing. Thanks ---
**Author:** ![badbearing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/badbearing/32/10683_2.png) [@badbearing](https://community.cartalk.com/u/badbearing)\ **Post date:** [October 19, 2013, 1:38am UTC](https://community.cartalk.com/t/tire-pressure-sensor/81830/6 "2013-10-19T01:38:08Z")
Pushed reset once It reset but wouldn’t blink Pushed reset again and lt blinked 3 times. Now for test run ---
**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\ **Post date:** [October 19, 2013, 2:31am UTC](https://community.cartalk.com/t/tire-pressure-sensor/81830/7 "2013-10-19T02:31:42Z")
If the warning indicator reappears inflate the tires to 35 psi. ---
**Author:** ![badbearing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/badbearing/32/10683_2.png) [@badbearing](https://community.cartalk.com/u/badbearing)\ **Post date:** [October 19, 2013, 6:55pm UTC](https://community.cartalk.com/t/tire-pressure-sensor/81830/8 "2013-10-19T18:55:46Z")
So far the light has stayed off yall gitn christmas cards 🙂 ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [October 19, 2013, 11:06pm UTC](https://community.cartalk.com/t/tire-pressure-sensor/81830/9 "2013-10-19T23:06:16Z")
Getting a little cold up there in Alaska already? ---
**Author:** ![badbearing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/badbearing/32/10683_2.png) [@badbearing](https://community.cartalk.com/u/badbearing)\ **Post date:** [October 20, 2013, 2:41am UTC](https://community.cartalk.com/t/tire-pressure-sensor/81830/10 "2013-10-20T02:41:35Z")
No Its the longest fall ive seen yet Fall usually last about 3 days Its been in the 40s and low 50s