While driving my 2018 GS 350 F Sport AWD I got a warning that TMPS was not functioning. I was on my way to mechanic to have radiator flushed and coolant replacement. I had mechanic check system. He said one sensor was bad. It was replaced, but now I get three bars instead of individual PSI when checking tire pressure. Yesterday I took car to dealer for oil change. Dealer wants $200 to reprogram TPMS and $400 to replace all four sensors. Service advisor said sometimes non OEM sensors can't be read by vehicle. Car has 99,700 miles. Any suggestions?

 

You are stuck. First go to Costco/Sams/etc and ask them to check. Their hand-held will check for low bat and gives sensor id too. If so, make sure to write that ID if that might become handy/useful if someone is willing to program for you and will save a step.

I did my own TPMS change out on driveway and used TIS to program. Got Denso from Rockauto. Since the first tire I forgot to write the ID, I did have to press in the rubber to get ID. They work. Check with Discount Tire or other tire shops for both 1 reprogram or replace 4. Choose best price. You will need to have 4 new ones. If they are orig, they last between 5-8 yrs (10 is hopeful). Definitely needs replaced. Sams, Costco, Discount Tires, etc all have this service and the replacement price includes programming. One at a time, you will be repeating part+labor for each going forward ... could be a week/month/yr.

... Total BS. The mechanic that replaced the sensor should know and replace one that works for this vehicle, and should/would have programmed it. It should have worked within 90 sec of pressure change or after a short drive... Have that checked. Past that, while it is true that "sometimes" non-OEMs cant be read, most of our replacements are non-OEM (Costco, Discount Tire, RockAuto, etc). OEM and Denso ones might say Pacific.

But it could be that or another on its way out. Or maybe during programming on TIS he could have put a typo. If he used a cloning tool, might have forgot this step. At this point, if on your own, yep $200 or whatever anyone want to charge that are willing to do the work. This is an issue because most like to only program their own supplied ones (Costco/Sams will say that) and most used is Dil brand. In your case either an external reader tool would have to display the ID or that place needs to deflate and press in the tire to get the printed sensor ID.

 

surgeon0 is right.

 

I you are experiencing cold climate conditions in your MI locale that can trigger a weak TPMS battery to not send a strong enough signal to the TPMS receiver - and all it takes is just one TPMS with a [too] weak signal and you'll see dashes for all four tires. Oftentimes when the TPMS warms up from driving, or higher ambient temperatures or being exposed to the sun's radiation it will once again transmit a signal strong enough and all four tires will display air pressure again.

If the reason for displaying dashes is a TPMS unit with a weak battery it's a good indication that all four TPMS are experiencing weak batteries and all the TPMS units should be replaced with new ones that have fresh internal batteries. When the car was originally built all four TPMS units are date coded the same from bulk factory inventory on the assembly line, therefore all four TPMS are the same age and have similar weak batteries. Most TPMS units last about ten to 13 years... Your 2013 GS 350 was built 13 years ago in 2012 so the TPMS units originally installed now have weak batteries.