Given the poor track record of TPMS in general, both as to accuracy and reliability, why would you want to?

 

Perhaps I misunderstand, I thought all 2008 vehicles must have TPMS, no choice. The current valves are definitely TPMS, and I have a set of blank rims for winter treads. If the vehicle does not have TPMS, great, I think the system is a waste. If it does, I must live with it.

 

Are you wanting to add TPMS to the winter rims? If so, I believe that you can clone the existing TPMS on your Sienna. There are numerous threads on here explaining how to do that.

 

OK. I will research.

-- edit-- findings

• Vehicle:
• The vehicle system knows 4 (or 5 for a spare) sensor id codes
• Very new Toyotas (2018 and later?) can find new sensors and learn the codes without any help
• Others,
  • either the codes must be manually entered into the vehicle through the ODB2 port,
  • OR some year vehicles can be put into "relearn mode", a multistep process (turn this, open that n times) similar to reprogramming a key fob
• Sensors:
• Sensors either have fixed ID codes OR clever sensors are writeable
• fixed ID sensors must have their new codes entered or learned by the vehicle
• writable sensors can be programmed with the EXISTING sensor code, eliminating the need to teach the vehicle

Except for the self-learning vehicles, you need an electronic TPMS tool for the process, $125 and up in 2021
Sometimes dealer software can register 2 sets of sensors for your summer and winter wheels.

Please correct or criticize any part of this.

 

$150 is way too much. It's $60 at my local America's Tire, Discount Tire in other states.

As far as I know the systems that can read the sensor IDs independently are easy, you just need to find compatible sensors/the right frequency.

The system on your model year requires programming or cloning.

@fibber2 I believe is the resident expert on these TPMS sensors...

Sent from my moto g(7) power using Tapatalk

 

Costco members can have TPMS installed on their vehicles for a reasonable cost. FYI

 

Costco members can have TPMS installed on their vehicles a a reasonable cost. FYI

Just wanted to update this -
I had one sensor replaced today at my local Costco, it was Dill's Redi-Sensor 7002A, $44.99 for the sensor, $14.00 to install. Costco stocks a number sensors on hand.

 

$60 at Discount Tires as jzchen said. Also comes with 5 year warranty.

 

TRW is the OEM supplier for Toyota. This system was only used on the Sienna and a few trucks. Most Toyota vehicles use a system made by Pacific Industries.

Fortunately, the TRW sensors are relatively cheap. Here's a set of 4, complete with installation hardware for $40 ($10 a piece). My record for low cost was $7 each for winter wheels, so this is darn close to as cheap as you'll find them.

Set of 4 OEM 42607-0C070 TPMS Tire Pressure Monitor Sensors For Toyota | eBay

Find many great new & used options and get the best deals for Set of 4 OEM 42607-0C070 TPMS Tire Pressure Monitor Sensors For Toyota at the best online prices at eBay! Free shipping for many products!

www.ebay.com

The downside is that you'll need an ATEQ Quickset or Autel TS-508 to register the set of 4 each season, or pay someone to do the upload.

Alternative is to go with "cloned" sensors that match the ID of your existing sensors. Expect to buy 4 sensors programmed for around $150 to $200 one-time charge.

 

TRW is the OEM supplier for Toyota. This system was only used on the Sienna and a few trucks. Most Toyota vehicles use a system made by Pacific Industries.

Fortunately, the TRW sensors are relatively cheap. Here's a set of 4, complete with installation hardware for $40 ($10 a piece). hr0nKdRdxgt-dQgfNkXPP9AYme6Hx3fD673h38udO1-WeJFMxn4lwaAj5BEALw_wcB[/URL]

The downside is that you'll need an ATEQ Quickset or Autel TS-508 to register the set of 4 each season, or pay someone to do the upload.

Alternative is to go with "cloned" sensors that match the ID of your existing sensors. Expect to buy 4 sensors programmed for around $150 to $200 one-time charge.

Good information, thank you. I will follow up on one of those options.
The TRW brand may be a little more, and the cloned a little less, OK. I really do not want to buy and learn one more tool, I'll probably buy some type of sensors and pay the mechanic to program.

 

Call it an investment, as chances are you will be purchasing additional vehicles over the coming years that have TPMS systems. This is the current tool of choice:

AUTEL TS508 TPMS DIAGNOSTIC SERVICE TOOL WITH OBDII CONNECTOR W/CASE | eBay

WILL SCAN ANY SENSOR OUT THERE INCLUDES OBDII CONNECTOR. DOES NOT INCLUDE SENSORS! INCLUDES CASE.

www.ebay.com

This guy sold hundreds of these (several to members here) for $120, so it looks like they went up $10 recently. Still a bargain, as I paid over $200 when I purchased mine two years ago. Do this with the $40 TRW sensor pack above and use the tool seasonally to update your onboard system, or buy a $110 pack of 4 programmable AUTEL MX1 sensors and make clones for a tool-free seasonal change. Either way you can't beat the total price.

And no, I have no vested interest in selling you on a solution....

 

Call it an investment, as chances are you will be purchasing additional vehicles over the coming years that have TPMS systems. This is the current tool of choice:

AUTEL TS508 TPMS DIAGNOSTIC SERVICE TOOL WITH OBDII CONNECTOR W/CASE | eBay

WILL SCAN ANY SENSOR OUT THERE INCLUDES OBDII CONNECTOR. DOES NOT INCLUDE SENSORS! INCLUDES CASE.

www.ebay.com

True, other vehicles will need that. I did not think of it. That is the best price by far I have seen for the 508 with ODB connection. I'll get one

 

actually, the batteries on the trws are not that difficult to replace but best price for the batteries i have found are about $13 each. [they are simimlar to key remote batteries but have terminals welded to them at the factory]. you can unsolder your dead battery and solder these in. I sometimse do this and other times jjust put in new sensors

 

If you are going to go to the trouble of depotting (cutting the sensor case open) to replace a battery, you can get mini sockets or tab connection 2032 batteries for a reasonable price on Amazon. Make sure you seal it all back well.

Frankly, I wouldn't even consider attempting to revitalize electronics that have been pounding around in your wheels for the past 15+ years.

 

Just for clarification, a lot of the sensors are potted; however, the oem type TRW sensors are not. You can snap the case apart and there is a small amomut of glue holding the battery into the back of the case. pry up and it is out. you can unsolder the battery leads from the pcb then solder a new one in and press it back into the case and snap the cover on...good to rerinstall.