How Many TPMS Sensors can a 2009 H3/H3T Monitor?

[Portager]

I would like to switch to a 5 wheel tire rotation so that my spare has the same tread life as the other four tires, but that means that I would need to move one of the 4 TPMS sensors from the wheel that I'm making the spare to the one that was the spare every time I rotate my tires. This is a lot of additional effort when your running the Hutchinson Double Bead Locks. So, I was contemplating getting a fifth TPMS sensor so I would have one in each wheel. I know that GM had 5 TPMS sensors for awhile and somewhere they switched to four but I'm not sure when they made that change or if the eliminated the ability to monitor five sensors. Can a 2009 H3/H3T monitor all five TPMS sensors or would I need to reprogram the system to monitor the four that are on the ground?

BTW: Anybody want to sell a TPMS sensor?

 

[Peep]

I have 5 on my 2006 I5. If you rotate the tires, you must reset the TPM which is something that has me pissed right now. My emergency brake cable needs to be replaced. You can not reset the TPM with out having the emergency brake engaged.

So waiting for the part to be shipped to Belize.

 

[alrock]

4 sensors on 08 and up. PCM for all years can only monitor 4 so when you do a five tire rotation you have to do the relearn, aka the horn hokey pokey

 

[Bigunit]

...or take your rig to Discount Tire and they will use their magic handheld gizmo and "relearn" them for you for free in seconds.

 

[SuperBuickGuy]

or pay attention to your tires and when its low fill it with air then go get the leak fixed? just sayin'

I still don't get why you'd have to relearn for 5. The sensors emit a signal when the tire is low (also, if you air down a bunch, you'll get to buy new sensors more often). If the tire isn't low, it gets a bounce-back signal when it does it's computer check, but it doesn't differentiate which tire is which (like Jeeps)... no need to relearn.

 

[alrock]

You'll get the SERV TPM message on your dash if you don't do the relearn as it will only get three signals since it won't recognize the fourth sensor.

 

[ReconH3]

What everyone said. You have to relearn every time you rotate tires. It only relearns the 4 that are functional. It does not need to relearn the spare, but the spare does need a sensor if you plan to use it in the rotation.


"Ex Umbris Venimus"