The sensors appear to be mileage based...
100-150k miles is when they go.

Autel is always good... however any Honda scanner that can write the tpms id/serial to the pcm will do.

I have done this with 30 dollar aliexpress tpms readers that get the code from the sensor, and then use a scanner to write the code to the pcm.

alternatively you can get cloneable sensors that you program with the serial / id currently in the pcm and you don't need to program it.

if you buy all the gear to diy it will add up to the cost of paying the dealer for the first time, however not investing in the tools, you will not have the ability to do your other vehicles in the future.

 

Autel may be good, but is the 508 the current best bet, or old hat? Is one of the different $30 units you speak of straight forward to use and worth the money?

Are the clonable sensors of the quality that OE is?

 

Just out of curiosity, what are the pressure measurements of each tire? Have you brought your van to the Costco tire shop? They could balance your tires, rotate them, check for small leaks. Could they also check to see if just one (if any) of the TPMSes have gone sideways.

 

We tend to run the pressures a bit over the spec and have great tire life and zero issues. We checked that first despite seeing only the TPMS indicator and not the low pressure indicator. All were fine.

Thus the need to get real data on which tire has an issue, and then decide upon the investment given that when one goes, likely the other three will as well…

 

Costco TPMS service just means the rubber seal and valve core are replaced. When the battery dies, you replace the sensor. I have the 508 and it worked perfectly on my Civic to confirm it was dead and programmed a new sensor into the PCM.

 

I have Autel cloned sensors which are now 7 years old in my winter tires. I would not hesitate to get them again or recommend them to anyone.