TPMS notes and easy DIY

[ryanCA]

Need some TPMS help:

2008 LC. Got some new tires this week.

Before getting new tires I had TPMS light on with “one tire” checking and not reading.

After getting tires, all lights are off. Drove 100 miles. All tire was reading fine.

4 days later, again “one tire” is not registering

Tire store says they cant help “as we always have issues with Toyota/Lexus products”

 

[gaijin]

Need some TPMS help:

2008 LC. Got some new tires this week.

Before getting new tires I had TPMS light on with “one tire” checking and not reading.

After getting tires, all lights are off. Drove 100 miles. All tire was reading fine.

4 days later, again “one tire” is not registering

Tire store says they cant help “as we always have issues with Toyota/Lexus products”

View attachment 3430128

Here are a couple of question to help troubleshoot:

1. Was it the same tire position (i.e. in the middle of the display as shown in your picture) that showed as "CHECKING" before and after new tires?

2. If you manually check your tire pressures with a tire pressure gauge, do you get pressures that accurately reflect what is shown in the display?

HTH

 

[lx200inAR]

Need some TPMS help:

2008 LC. Got some new tires this week.

Before getting new tires I had TPMS light on with “one tire” checking and not reading.

After getting tires, all lights are off. Drove 100 miles. All tire was reading fine.

4 days later, again “one tire” is not registering

Tire store says they cant help “as we always have issues with Toyota/Lexus products”

View attachment 3430128

Techstream, and possibly better scanning tools will tell you the battery voltage of your sensors. Possibly you have one that is weak and going in and out. Before I swapped mine a few years ago, i had one sensor that would go out periodically on longer drives. I assume it's the same one that is going into "checking" state. I believe that after it sits in the checking state for a while, then you will get the TPMS light and you won't be able to see any of the sensor values, only a TPMS error.

 

[pcut]

You can move your sensors into the BBS wheels and not need programming. The 21 tundra TPMS may not be compatible with your LX anyway. IF they are (I don’t think so), yes you’ll need the codes. A shop can either split one bead on each tire/rim and take a look, or use their scan tool (if they can get it to work) to find the codes and program your car for them.

Personally, if your sensors aren’t very old I’d use those. If they are originals I’d find the correct model of denso/pacific industry sensor and install those then program your LX to start from zero.

I wasn't clear- the wheels already have new Michelin LTX tires so I am hoping there is some way I can reprogram the existing sensors so they will work on my '14 LX or will I have to buy new ones that are compatible with the LX and have someone install them?

 

[ryanCA]

Here are a couple of question to help troubleshoot:

1. Was it the same tire position (i.e. in the middle of the display as shown in your picture) that showed as "CHECKING" before and after new tires?

2. If you manually check your tire pressures with a tire pressure gauge, do you get pressures that accurately reflect what is shown in the display?

HTH

1. Before the tire change, 2 of them would be checking (position 3 and position 5). Once tire shop put new tires, all 5 were showing. Now 4/5 are showing, with position 3 constantly checking.

2. Tire pressures are accurate at 35psi when cold, as it shows in the monitors.

 

[ryanCA]

Techstream, and possibly better scanning tools will tell you the battery voltage of your sensors. Possibly you have one that is weak and going in and out. Before I swapped mine a few years ago, i had one sensor that would go out periodically on longer drives. I assume it's the same one that is going into "checking" state. I believe that after it sits in the checking state for a while, then you will get the TPMS light and you won't be able to see any of the sensor values, only a TPMS error.

That is what is really happening. Are there tire stores who are familiar with this? Or is it a dealer thing?

 

[lx200inAR]

That is what is really happening. Are there tire stores who are familiar with this? Or is it a dealer thing?

Any good tire shop should be able to deal with it. Just need to figure out which sensor is having trouble. You can air up/down tires individually to find it. And then probably replace that sensor. Either using OEM or whatever the tire shop or you prefer to use. OEM probably last the longest, but not sure how much that matters compared to getting it working. I should add, I assume you did t leave your spare in the garage or something?that one counts to.

I use Carista to program the sensors to the truck. For the earlier 200s programming through the OBDII is only option if you need to change the codes stored in the ECU. A 2nd option is to get a cloneable sensor replacement, then the sensor can mirror the code of your failing sensor, that way you don’t need to change anything in the truck ECU.

 

[ryanCA]

Any good tire shop should be able to deal with it. Just need to figure out which sensor is having trouble. You can air up/down tires individually to find it. And then probably replace that sensor. Either using OEM or whatever the tire shop or you prefer to use. OEM probably last the longest, but not sure how much that matters compared to getting it working. I should add, I assume you did t leave your spare in the garage or something?that one counts to.

I use Carista to program the sensors to the truck. For the earlier 200s programming through the OBDII is only option if you need to change the codes stored in the ECU. A 2nd option is to get a cloneable sensor replacement, then the sensor can mirror the code of your failing sensor, that way you don’t need to change anything in the truck ECU.

Thank you so much. I will try DiscountTire.

 

[M1911]

I had a tire shop replace all 5 tires and TPMS sensors on my 2013. They didn’t have any problem programming the new sensors. I think you need a better tire shop.

 

[40Man]

Thank you so much. I will try DiscountTire.

FYI-DT sells low grade generic sensors. You may want to buy a Pacific/Denso or two and take with you (can return if not needed). I bought some at Advance Auto recently.

 

[ryanCA]

FYI-DT sells low grade generic sensors. You may want to buy a Pacific/Denso or two and take with you (can return if not needed). I bought some at Advance Auto recently.

if they will do sensors that I bring, I will buy some at advanced auto as you recommended

thanks!

 

[ryanCA]

I had a tire shop replace all 5 tires and TPMS sensors on my 2013. They didn’t have any problem programming the new sensors. I think you need a better tire shop.

this shop - around 40 years is a mom/pop

been taking so many vehicles for 15 years
was suprised they couldn’t

will have to go to a chain

 

[40Man]

if they will do sensors that I bring, I will buy some at advanced auto as you recommended

thanks!

They did for me, but YMMV.

 

[40Man]

this shop - around 40 years is a mom/pop

been taking so many vehicles for 15 years
was suprised they couldn’t

will have to go to a chain

On Discounts sensor programmet, my 16 LC only worked by setting it as an lx570. For my 2011 it programmed no problem selecting the correct year/model.

 

[bloc]

Conversely three different people at two discount tire locations couldn’t get my new OE supplier Pacific Industries sensors working.

I ended up actually reading the directions and doing it myself.

 

[ryanCA]

geez this shouldnt be this hard

 

[40Man]

geez this shouldnt be this hard

That is why I eventually bought my own programmer.

Newer Toyotas self learn new sensors. My 2020 4runner and 23 Tundra both do it. How it should be.

However key programming has become a PITA on newer toyotas...

 

[ryanCA]

That is why I eventually bought my own programmer.

Newer Toyotas self learn new sensors. My 2020 4runner and 23 Tundra both do it. How it should be.

However key programming has become a PITA on newer toyotas...

Yeah we have couple of 2023 Tacomas and a 2023 Tundra on the farm. Some good things some bad things.

 

[timeo]

TMPS woes for me, need help. Had one sensor going out so I bought a complete set of Denso's from Rock Auto for a 2015 LC, part #Denso 5500106. Took them to Discount Tire and they installed them but were unable to sync up w/ LC. Their suggestion was to buy a new set directly from them or go somewhere else. I figured, no problem, I have Techstream and will just change codes at home. Get home in about 15min (5 miles) and hook up TS only to see that the new codes are listed correctly in TS but there are no readings from the new sensors, WTF? Is there something else I need to do to get these sensors working? Tried resetting the TPMS button to no effect. This shouldn't be so hard...

 

[TLC2013]

You may need to “awake” the new sensors. There is a process of rapidly deflating the tire and then inflating it back up that Denso says may need to be performed with their new sensors. I have never needed the do this when swapping wheels/tires but is something they advise. I use Carista to program my TPMS and it works flawlessly. The only issue I have encountered was user induced when I kept putting in the wrong TMPS ID code.