Whadaya know about GM TPMS

[rockfan4]

The wife's 2016 Impala has a dead sensor. The car is old enough that it is probably time to just change all 4.

Looking at the place that has all the parts your car will ever need, but is censored here, eBay, Amazon. Anywhere else to look? There's some confusing information out there, some sites list both 315Mhz and 433Mhz sensors for the same car, I'm fairly certain the car uses 315Mhz sensors. There's some sites that say certain sensors only work up to 2015 model year, and 2016 and up are different, others that say all Impalas 2006 to 2020 (last year of the model).

I just tested the snow tires off my 2010 Silverado on the new (to me) 2019 Silverado, and I get the sync up beep for 3 out of 4, I think one has a dead battery. I'm going to try again when the wife gets home. I'll park her car near the truck and see if I can substitute one of hers for mine with the dead battery, and see if they all read.

Anyone else have any knowledge? The sensors in my snow tires are either random ones bought off ebay, or a coworker gave me the sensors from the OEM wheels when he put larger wheels on his Camaro, and then ended up selling it with the new wheels.

[GH85Carrera]

I keep looking for the TPMS display on my El Camino, and I guess it is in the backup camera display next to the lane departure system. I can't find it anywhere.

[asphaltgambler]

Well, unless you have a tpms scan tool, only other way is to visually inspect the sensor on backside - having to remove the tire. The info should be printed on it, the scan tool should display the frequency.

[cockerpunk]

yeah TPMS is a waste of time. pull the bulb or learn to ignore it. system fails far more often than a tire fails, ergo its useless as a warning system.

[pwd72s]

I know Summit Racing sells Mustang sensors...maybe they sell Chevy as well?

[pavulon]

Originally Posted by cockerpunk

yeah TPMS is a waste of time. pull the bulb or learn to ignore it. system fails far more often than a tire fails, ergo its useless as a warning system.

Perhaps for car sorts. But for non-car sorts, it can be the difference between a problem and and a big problem or far worse.

[stevej37]

My Prelude is too old to have tpms...so I ordered this from Amazon...
https://www.amazon.com/gp/product/B085C2HMQP/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&th=1

No need to install it inside the tire...the caps do the job.

[JackDidley]

Originally Posted by cockerpunk

yeah TPMS is a waste of time. pull the bulb or learn to ignore it. system fails far more often than a tire fails, ergo its useless as a warning system.

Ive had no problems with TPMS in the Cayman or the C6 Vette. Only cars I have had with it. Nice to check pressure by looking at the dash.

[fastfredracing]

You could probably get any tire shop to read one for you. How do you plan on learning them to the car ?

[rockfan4]

Originally Posted by pavulon

Perhaps for car sorts. But for non-car sorts, it can be the difference between a problem and and a big problem or far worse.

If you can train her to look at the light. Just after we replaced the tires on her car, about a year ago, I got in her car to drive it, and the light was on. "How long has this been on?" "I don't know." Left rear had about 20 lbs in it. Found a nail, pulled it, plugged the tire. Got in her car again a couple days ago, the light was on again. "How long has this been on?" "I don't know." One dead sensor.

Back to the problem at hand. She's home now, and I was able to sync up two of the 2010 truck's snow tires, and two of the tires on her car to the Silverado. I know the old silverado had 315Mhz sensors, so that would tell me the 2019 uses the 315Mhz sensors, and since I was able to sync up two of the tires on her car, it uses 315Mhz as well.

Originally Posted by fastfredracing

You could probably get any tire shop to read one for you. How do you plan on learning them to the car ?

GM is pretty simple. Turn the key to on, but don't start the car. Go to the tire pressure screen on the dash. Hold down the checkmark button until the horn beeps, and the dash now says "learning mode". Get out, go to the left front tire. The left front turn signal will be lit. hold a magnet or the tire sensor tool by the tire until the horn honks. Then the Right front turn signal lights, do that tire. Then Right Rear, then Left Rear, then the horn honks twice, and the car has learned the 4 new sensors. Piece of cake.

[Brian 162]

Originally Posted by rockfan4

If you can train her to look at the light. Just after we replaced the tires on her car, about a year ago, I got in her car to drive it, and the light was on. "How long has this been on?" "I don't know." Left rear had about 20 lbs in it. Found a nail, pulled it, plugged the tire. Got in her car again a couple days ago, the light was on again. "How long has this been on?" "I don't know." One dead sensor.

Back to the problem at hand. She's home now, and I was able to sync up two of the 2010 truck's snow tires, and two of the tires on her car to the Silverado. I know the old silverado had 315Mhz sensors, so that would tell me the 2019 uses the 315Mhz sensors, and since I was able to sync up two of the tires on her car, it uses 315Mhz as well.


GM is pretty simple. Turn the key to on, but don't start the car. Go to the tire pressure screen on the dash. Hold down the checkmark button until the horn beeps, and the dash now says "learning mode". Get out, go to the left front tire. The left front turn signal will be lit. hold a magnet or the tire sensor tool by the tire until the horn honks. Then the Right front turn signal lights, do that tire. Then Right Rear, then Left Rear, then the horn honks twice, and the car has learned the 4 new sensors. Piece of cake.

You can also add or reduce tire pressure when doing the re-learn on GM vehicles. It takes around 10-15 seconds and the horn should honk for that sensor.
I used to do it that way when switching my summer to winter tires. I finally broke down and bought a TPMS re-set tool

[rockfan4]

Originally Posted by Brian 162

You can also add or reduce tire pressure when doing the re-learn on GM vehicles. It takes around 10-15 seconds and the horn should honk for that sensor.
I used to do it that way when switching my summer to winter tires. I finally broke down and bought a TPMS re-set tool

I did the same with the old truck. It really got to be a pain. Add a little air. Nothing. Add some more. Give up and walk away. "Honk". Really? The tool was only $10 or $15 dollars, money well spent.

[aigel]

Buy 4 new GM OEM Sensors at rock auto or gmpartsdirecr and have a tire shop put them in. The aftermarket stuff is mostly junk. The problem is you can’t get to them without the hep of a tire shop…

[rockfan4]

Originally Posted by aigel

The problem is you can’t get to them without the hep of a tire shop…

Challenge accepted.
The truck has 70 series tires. Wasn't a big deal to pop the bead, hold it down with the bead breaker, and swap the sensor. I might have to look for a T8 allen wrench or something. Ended up holding a bit from a multi-driver with a vice grip.

I'm not going to try with the wife's car. 50 series tires. I'm not sure I could press it down far enough to get in there. I'll have to find a shop.

[aigel]

Haha. I'm impressed!

So what TPMS did you put in? Some Chinese stuff that will need it again in 2 years?

Costco charged me $15 each to install. Low profile tires.

I sure like the passive tire pressure monitoring using the ABS sensor. Yes, you don't get an absolute value, but zero sensors inside the tire to worry about.