if you use your spare in a tire rotation...do you lose TPMS?

[BenBB]

Curious about this as well, for my Gen1. TPMS isn't perfect but would be nice to know when a tire starts losing air (ideally before trashing a rim); if I add a sensor to my spare, will the system monitor all 5? Can it handle 6? Too bad you can't selectively disable the ones that aren't on the ground, because once one blows the system just tells you "hey there's a flat" and doesn't effectively monitor the four that are turning (so if you CAN run 5, as soon as one loses air, you swap it out, better take it easy on the way home because if another goes the system won't tell you). Not sure if I'd be better off using a tune (or Forscan?) to lower the warning pressure to 10 or 0 psi and just running slime, along with including the spare(s) in tire rotation...lotta pointy shit around here...

 

[HeavyAssault]

Curious about this as well, for my Gen1. TPMS isn't perfect but would be nice to know when a tire starts losing air (ideally before trashing a rim); if I add a sensor to my spare, will the system monitor all 5? Can it handle 6? Too bad you can't selectively disable the ones that aren't on the ground, because once one blows the system just tells you "hey there's a flat" and doesn't effectively monitor the four that are turning (so if you CAN run 5, as soon as one loses air, you swap it out, better take it easy on the way home because if another goes the system won't tell you). Not sure if I'd be better off using a tune (or Forscan?) to lower the warning pressure to 10 or 0 psi and just running slime, along with including the spare(s) in tire rotation...lotta pointy shit around here...

I'd suggest using the TPMS reset tool. Watching the guys at Discount Tire: They put the TPMS into programming mode, walk around to each tire, point the tool at the TPMS sensor, wait till there's an response (usually horn honks), then proceed to the next TPMS until all are done. The TPMS in programming mode requires you to start at the Driver's front, proceed in clock-wise fashion until all sensors are done.

The Ford OEM TPMS tool is under $50 if I recall correctly.

 

[BenBB]

I'd suggest using the TPMS reset tool. Watching the guys at Discount Tire: They put the TPMS into programming mode, walk around to each tire, point the tool at the TPMS sensor, wait till there's an response (usually horn honks), then proceed to the next TPMS until all are done. The TPMS in programming mode requires you to start at the Driver's front, proceed in clock-wise fashion until all sensors are done.

The Ford OEM TPMS tool is under $50 if I recall correctly.

Thanks I'll check it out!!

 

[HeavyAssault]

I forgot to add that the TPMS in the tires are not active until tires are rotating OR activated with the TPMS tool when programming. SO that would suggest tires loaded into the bed as spares (or elsewhere) would not be recognized as active by the TPMS.

I say this as the "Winter Tire Air" dash alert tends to be confusing to some people...LOL Once you adjust the tires to correct cold PSI, the tires will need to be spinning to activate the sensors, providing a new PSI reading to the TPMS and finally clearing the dash alert.

 

[HeavyAssault]

Thanks I'll check it out!!

Pretty easy to test if you have the correct TMPS in a tire. Maybe get a buddy to loan you a couple of wheels/tires.

 

[wheelman55]

Just in case anyone is confused. My experience is with a 2018 Raptor.

1). The vehicle will read whatever TPMS equipped wheel is mounted to any corner.
2). The factory spare does NOT come with a TPMS. You will neeed to install one.
3). I use 6 wheels/tires with TPMS on my 2018. The vehicle reads only the ones that are mounted on the four corners of the vehicle. Meaning that the spare under the truck and the spare in the bed are not read.
4). It seems like the tire pressure gets read as I rotate the tires, without having to drive the truck. I'll check the next time that I rotate.

Hope this helps.

 

[atp160]

Just rotated my spare and no low pressure tire light on my dash

 

[DrewFish11]

If you need to do a relearn procedure with your TPMS sensors, I've found this technique to be useful on my 2018. It doesn't require the use of any additional tools. I forget where I came across this but I saved it in my notes on my phone and have been following this procedure whenever I need to sync up the TPMS sensors. If someone knows the origin of this information please feel free to give that person credit. Not trying to steal anyones ideas, just trying to pass along useful information that has helped me.

1) Make sure your tires are inflated to the recommended psi.

2) Turn ignition to the on position. If you have a push button start, push the start button without pressing the brake pedal.

3) Push the hazard light button 6 times. The horn should honk and you should see "Train left front tire" in the LCD display between the tach and speedo.

4) Release air pressure in the front left tire until you hear the horn honk. The LCD display should now read "Train right front tire".

5) Release air pressure in the right front tire until you hear the horn honk.

6) Repeat for the the right rear tire, and then the left rear tire.

7) You should now see "Training Complete" in the LCD display.

8) Fill your tires back up to the recommended pressure.


This is the tool I use. Cheap and effective. I screw it on the valve and let it release air until the horn honks signifying that wheel is calibrated. After that, it's off to the next wheel. Just makes it so you don't have to sit there and manually depress the Schrader valve.