I got an awesome deal on some 20” takeoffs from a 2020 gmc truck and I put them on my 2008 Tahoe. They look awesome and fit good, but the tire pressure sensors will not mate up to it’s computer. I’ve tried the procedure for the 2008 and that didn’t work. I also tried using the TPS tool and had no luck. Don’t want to break down new tires and wheels, so do I have any more options ?
2020 snowflakes on 2008, tire pressure sensors
- Thread starter captain63
- Start date
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gooffeyguy
Tom
Get one of those TPMS delete boxes that's talked about in another thread a while back. I think it costs about $100, plugs into 12v for power and gives a fake TPMS signal so you don't need the actual sensors in the wheels.
Edit:
User Jolly Roger talks about it in the post "antennas sticking out of my tires"
https://r.tapatalk.com/shareLink/to...&share_fid=17772&share_type=t&link_source=app
2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18
Edit:
User Jolly Roger talks about it in the post "antennas sticking out of my tires"
https://r.tapatalk.com/shareLink/to...&share_fid=17772&share_type=t&link_source=app
2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18
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ivin74
05 NBS Nali
gooffeyguy
Tom
Nope, can't turn the TPMS system off, it's like a federally mandated safety device.
Here's a link to that emulator site
Www.tpmsdelete.com
2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18
Can’t turn it off but any tire store can install new sensors by just letting the air out and breaking the beads.
Edit: or you can do it yourself. Put your tire under the back bumper and use your jack to break the bead.
Edit: or you can do it yourself. Put your tire under the back bumper and use your jack to break the bead.
adventurenali92
Full Access Member
The reason the tire pressure sensors are not mating up is because the sensors on the 2020 wheels are on a different transmitting frequency than what your 2008 uses. You need the sensors for the 2008 model year for them to properly link up to your truck.
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This^^^^^
So I got the TPMS sensors alarm turned off and it didn’t cost a dime. I pulled out in the driveway and pulled my 2012 Sierra out there with the Tahoe. I put the Tahoe in tire learning mode and pulled the Sierra next to Tahoe and started letting air out of Sierra tires one at a time ( moving the Sierra around to different tire locations letting air out at each tire) and what do you know IT WORKED. Now the light is off and will never come on because the pressure was read from the Sierra and the 2020 sensors will not send signal to 2008 computer...
It checks for a signal from time to time and if it doesn’t get one, guess what? The light comes back on. It’s the same as the batteries in your sensors going dead.
BADRIDES
Full Access Member
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You are correct
iamdub
Full Access Member
The light will come on and start flashing again in about 25 miles. There's no way around it- the computer wants to see a valid signal indicating an expected range of pressure. Either have the sensors swapped out or get that emulator box.
What’s odd is, a friend had a relearn tool, he brought it over one day last week and I programmed the driver front tire one time and would not read any other tires. That was before I learned that the sensors were different frequencies. I wonder why it read that one tire.
iamdub
Full Access Member
Were there any other GM vehicles nearby? Mine picks up tires from 20'+ away.
Got in my ride and light was off, had psi on all four corners. After several miles light came back on and psi was dash lines on all four corners. Light stayed on for three or four days and today it was back off with tire psi on all corners.
It’s probably going back to the last learned pressure. I’d be willing to bet that if you let air out of a tire the readings wouldn’t change. It will eventually fail completely imo.
I agree with this.
Either get the proper sensors put in the wheels or just ignore the dash lights and readings.
The new sensors are just not compatible with the older vehicles.
iamdub
Full Access Member
This is what mine does. On a brighter note, I just scooped up four brand new Schrader sensors for $25 because a guy couldn't get them programmed to his Jeep and ended up getting OEM ones from the dealer. They're universal and need to be programmed to work on whichever frequency the car uses (433MHz or 315MHz). His Jeep is only a couple years old so it's 433MHz. I'm hoping they're set for 315MHz and will work as-is for my Tahoe.
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