# Had valve stem replaced on my Prius, now the TPMS light is on? **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** prius, toyota\ **Created:** [October 22, 2022, 12:47am UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014 "2022-10-22T00:47:47Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [October 22, 2022, 8:31pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/21 "2022-10-22T20:31:57Z")
> [@iag360\_141684](#): > > It appears that it’s just a common valve stem so I’ll just have to purchase one and take it to a local mechanic to have it programmed Just because it appears to be just a valve stem does not mean it is . Stop making things difficult . You may need all new Tire pressure monitors as they only last 8 to 10 years . Also if you buy a monitor and have them install and it is not compatible then you will just waste money. ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [October 22, 2022, 8:36pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/22 "2022-10-22T20:36:41Z")
> [@iag360\_141684](#): > > Probably just a rubber stem huh? Please post a picture . . . with the cap OFF, please . . . and we should be able to recognize what it is fyi . . . some tpms valve stems look like a regular valve stem at first glance ---
**Author:** ![sestivers](https://avatars.discourse-cdn.com/v4/letter/s/f6c823/32.png) [@sestivers](https://community.cartalk.com/u/sestivers)\ **Post date:** [October 22, 2022, 10:04pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/23 "2022-10-22T22:04:43Z")
That procedure only tells already paired, working sensors what the benchmark tire pressure should be. It does not make the TPMS computer recognize a new sensor. ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [October 22, 2022, 10:21pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/24 "2022-10-22T22:21:30Z")
I Googled Conrad’s. This is what they advertise: ### STANDARD TIRE INSTALLATION PACKAGE - Tire Mounting - Wheel Balancing - New Rubber Valve Stem - Old Tire Disposal - Lifetime Rotations & Re-balancing - Lifetime Flat Repairs - Reset Tire Pressure Monitoring System - Lifetime Wheel Alignment Inspections - Pro-Rated Tire Replacement Road Hazard Protection How you can get of the above without a receipt… ---
**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\ **Post date:** [October 22, 2022, 10:24pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/25 "2022-10-22T22:24:01Z")
probably because they did not charge him the second time to replace the valve stem. ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [October 22, 2022, 10:34pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/26 "2022-10-22T22:34:51Z")
> [@iag360\_141684](#): > > How much to program a sensor? I’m almost positive Conrad’s didn’t do that > [@iag360\_141684](#): > > 08 Toyota Prius > > Long story short I brought all new tires. But one tire had a slow leak. I take it back and they say it’s the valve stem and they replaced it no charge. > > I get in my car and the TPMS light is on > [@iag360\_141684](#): > > they didn’t give me a receipt or anything Unclear if the no receipt is for the valve stem replacement or for the set of tires. Original receipt would show if all sensors were replaced. OP has not answered that question. ---
**Author:** ![iag360\_141684](https://avatars.discourse-cdn.com/v4/letter/i/df705f/32.png) [@iag360\_141684](https://community.cartalk.com/u/iag360_141684)\ **Post date:** [October 23, 2022, 4:27am UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/27 "2022-10-23T04:27:52Z")
![735bad1ae965e3f300949716c0daacef.0](https://global.discourse-cdn.com/cartalk/original/3X/4/e/4e89b3438e1b83dc41882a2be865f253a917c421.jpeg) This is what my 3 stems look like ![dfba64c6a234f273b84f73d6ea3e259f.0](https://global.discourse-cdn.com/cartalk/original/3X/3/7/3714220d72f51fa463044ba2f328c0794a26cf5d.jpeg) And this is what my new stem looks like. That why I told Volvo that I’d find the culprit first… because it seems the warranty with Conrad’s just includes a regular Valve stem and not a whole TPMS sensor. So I’m glad I did the research first. It appears they installed a regular Valve stem so I guess now I have to find a Normal tpms for my car and have that installed @Purebred ---
**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 23, 2022, 5:00am UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/28 "2022-10-23T05:00:13Z")
I have seen this a number of times, a customer has new tires and one or more missing tire pressure sensors. They repaired the leak but disabled the tire pressure monitor, seems odd they would do this without your consent. The shop should have given you an estimate to replace the leaking sensor. ---
**Author:** ![TwinTurbo](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@TwinTurbo](https://community.cartalk.com/u/TwinTurbo)\ **Post date:** [October 23, 2022, 7:03pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/29 "2022-10-23T19:03:32Z")
I predicted it 😉 My advice would be to let the tire store you decide to use, also supply their preferred TPMS sensor. That way, they will stand behind it if it fails prematurely. Otherwise the onus is on you and if it does fail, you’ll spend all the savings and more on a better one and the labor to install it. I wouldn’t go back to this store. They did a disservice if they did not explicitly explain to you what they were doing and why. They should have offered to do the job correctly and charge accordingly. Putting in a simple stem for free wasn’t a good deal in the end… ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [October 23, 2022, 9:26pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/30 "2022-10-23T21:26:30Z")
If non-compliant valve stem was used, that might conceivably be a federal emissions violation. IIRC tire pressure monitoring was championed under the presumption it would improve mpg, and therefore lower emissions. ---
**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\ **Post date:** [October 23, 2022, 9:55pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/31 "2022-10-23T21:55:13Z")
> [@George\_San\_Jose1](#): > > If non-compliant valve stem was used, that might conceivably be a federal emissions violation. IIRC tire pressure monitoring was championed under the presumption it would improve mpg, and therefore lower emissions. No way this is an emissions violation. ---
**Author:** ![PvtPublic](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/pvtpublic/32/13089_2.png) [@PvtPublic](https://community.cartalk.com/u/PvtPublic)\ **Post date:** [October 23, 2022, 10:17pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/32 "2022-10-23T22:17:33Z")
> [@George\_San\_Jose1](#): > > IIRC tire pressure monitoring was championed under the presumption it would improve mpg, and therefore lower emissions. I think it was a “safety” requirement, not an emissions requirement. The gov’t trying to protect us from ourselves 🤣 ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [October 23, 2022, 10:22pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/33 "2022-10-23T22:22:50Z")
From what I can tell the smog testing folks don’t care if the tpms light is flashing. Smog test will pass irrespective of TPMS warning light. So it seems definitely plausible a purposely mis-configured tpms system wouldn’t be an emissions violation. I couldn’t find any info via Google that confirms this theory however. I’m quite certain a major reason cited for the introduction of the TPMS system was to improve mpg. ---
**Author:** ![iag360\_141684](https://avatars.discourse-cdn.com/v4/letter/i/df705f/32.png) [@iag360\_141684](https://community.cartalk.com/u/iag360_141684)\ **Post date:** [October 23, 2022, 11:17pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/34 "2022-10-23T23:17:14Z")
![IMG_20221022_161220_911](https://global.discourse-cdn.com/cartalk/original/3X/1/6/1635d2b2e547084da08ca79f59f9444027d8a98c.jpeg) Here’s my receipt for the new tires I bought Idk why they didn’t give me the opportunity to get a new tpms sensor instead of just a regular Valve stem. Not to mention as to why they acted dumb as to why my light was on after they installed it ![fc3308d1df3a45730f6ce9f85f6be7c3.0](https://global.discourse-cdn.com/cartalk/original/3X/6/0/6092f3d90f9caf40f230d75615546152a22fb587.jpeg) ---
**Author:** ![iag360\_141684](https://avatars.discourse-cdn.com/v4/letter/i/df705f/32.png) [@iag360\_141684](https://community.cartalk.com/u/iag360_141684)\ **Post date:** [October 23, 2022, 11:20pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/35 "2022-10-23T23:20:14Z")
Also Volv your insight and contentious attitude has been garbage since the 4 years I’ve been on this thread. I found the problem and didn’t need to take it to a shop to find it. Quit telling people to let other people handle something when people are capable of doing it themselves ---
**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\ **Post date:** [October 23, 2022, 11:31pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/36 "2022-10-23T23:31:40Z")
It says "new rubber valve stem **(where applicable).** It wasn’t applicable in your case. I would still take the car back to them to hear their explanation, if nothing else. Some aftermarket sensors do have rubber stems. ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [October 24, 2022, 1:47am UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/37 "2022-10-24T01:47:10Z")
![image](https://global.discourse-cdn.com/cartalk/original/3X/6/d/6d9303c942d2deb5ab8a62c03dd75cc16cd79734.jpeg) Some tpms valve stems look like this . . . which at first glance appear to be plain jane rubber valve stems I clearly asked you to post a picture of YOUR valve stem . . . and with the cap off . . . and that’s not exactly what you did ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [October 24, 2022, 11:09am UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/38 "2022-10-24T11:09:29Z")
My understanding TPMS came about after a series of Ford Explorer accidents with under inflated Firestone tires. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/48514_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [October 24, 2022, 7:12pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/39 "2022-10-24T19:12:01Z")
> [@George\_San\_Jose1](#): > > IIRC tire pressure monitoring was championed under the presumption it would improve mpg, and therefore lower emissions. No, it was done in the wake of the Ford Explorer/Firestone tires disaster, in order to give drivers an early warning of low tire pressure. Whoops! Purebred beat me to it… hours ago. 😔 ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [October 24, 2022, 8:05pm UTC](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014/40 "2022-10-24T20:05:30Z")
It is a poor tire shop that put a regular valve stem on a wheel when the vehicle has a TPMS system. Even worse when the customer complains about the TPMS not resetting and they can’t find the cause. [Previous page](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014.md?page=1) [Next page](https://community.cartalk.com/t/had-valve-stem-replaced-on-my-prius-now-the-tpms-light-is-on/187014.md?page=3)