Marsflex TPMS Sensor, 13598772 for GM 315Mhz, Tire Pressure Monitoring Sensor Compatible with Buick Chevy Cadillac GMC, Tire Pressure Sensor Replacement 13586335,13598771 4 Pack

The price is excellent, I was quoted $100 a piece for TPMS Sensors, and another $150 to install all four of them, So I was looking at a $550 bill to get my Tire monitoring back to working order. I was also told that you have to replace all four at the same time because they work together as a set. All UNTRUE. I took one of these Sensors out of the Box and laid it on top of my rear tire that wouldn't respond when I tried to do the Relearn Process to set the Correct tire to the Correct Wheel for the Cars Monitoring System. When I came to the tire with the with the bad TPM sensor with the new TPM Sensor laying on top of the tire, The New TMPS responded and I was able to Successfully complete the Relearn Process. So you really only need to change the bad TMP Sensor and Not all Four. Now I know that When I break the Tire Down and remove the old Sensor and put the New One In and seal it back up, It will respond with the correct tire pressure and Everything will be working as Designed. This whole fix cost me $25 not $550.Hope this helps all of you that got the same dishonest story at the local garage. This was a Great Win for the DIY crowd.GOD Bless you all and Our Country,tim--

**Update to say that the customer service is fantastic. We have an 2016 Malibu and even though Amazon says they will work it doesn’t. Wee have came to the conclusion that there are multiple frequencies for that year.After these were installed they went bad. They registered and worked when we left the tire shop, but after about 15 miles of driving, they stopped working.

Waiting for the fourth one to fail. Battery connection in these units disconnects randomly, stopping them from working. This makes my anti-lock brakes and stabili-track system on my truck disable itself & the dash lights up with all kinds of warnings. So far, after paying the shop to install them when I installed new tires, I have had to go back to the shop and have them replaced one at a time, three additional trips @ $75.00 each... $225.00 total... one more to go. I do not recommend these sensors, they are junk.

Simple to program, and easy to use

This is my 2nd set that I've purchased. Last purchase was for my 2012 Camaro, these were for my 2014 Malibu. I just noticed the valve stem caps have little gaskets.The only reason that I left 4 instead of 5 stars is due to the fact that installing only one of these tpms sensors made it impossible to relearn my other 3 factory/oem sensors.My right rear 10 year old oem sensor stopped working. I wanted to replace only one as a test to see how it worked. When I did, I couldn't get my front left tire to activate the relearn process.I have previously "relearned" my factory sensors when rotating my tires, so I know they worked.I walked around to each tire and only the new sensor would "honk" the horn. Not sure if the signal is too strong, but it actually honked the horn when I placed the relearn tool near the box of remaining 3 new sensors.I tried various things, then finally gave in and replaced the remaining 3 sensors. The relearn process worked great having all 4 new sensors.I did this myself on my 2013 Camaro SS using a (reinforced/ modified) Harbor Freight tire changer to break the bead around the sensor. I didn't completely remove the tire from the wheel.(Those 275 20's are hard on my manual tire machine)Once the bead was broken around the valve stem area, i used tire clamps (purchased on amazon) to hold the tire down and give me room to work.The hardest part of this whole process was removing the old valve stem from the wheel.I separated the sensor from the factory valve stem with a T10 torx tool and tried 4 different methods to remove the old valve stem: cutting it, breaking it & drilling out the broken middle brass piece, cutting the rubber with an exacto blade, pushing and pulling it. It might have been easier to do if I had the tire completely off, but my rear tires are hard to replace at home, so I didn't do completely remove them.Installing was easy. Lubed the rubber protion of the new valve stem with soapy tire lube, removed the valve stem cap. Pushed it up into the hole. Threaded on a valve stem thread chaser tool to use as a "T" handle and pulled it until it popped into place.No cuss word used during the whole process, which was surprising if you know me.

These were already programmed for my car and they worked great. I tried putting the one that was bad in and it worked, but the other three had to be put in to make the dash light go out.

Worked well for about a year, but now two of the sensors do not work. I installed in 12/23

I'm a GM dealer tech and these are just as good as OEM. I've used a bunch of these on my own cars.