Marsflex TPMS Tire Pressure Sensor Compatible with Saturn Pontiac Hummer GMC Chevy Cadillac Buick, Replaces# 13598771, 13598772, 13586335, 4PCS

great value tpms replacement. delivery on time, packaged well and works like oem.

These sometimes fail , the price allowed me to purchase more cheaper than factory by far they appear to be good quality . I did not try to use any warranty I just purchased another set came quickly am on the road again saved me a lot of money and my tire store worked with me on installation price . I purchased Oem that individually cost me for one as both sets cost me . They work.

**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.

Not compatible with my 2017 Chevy volt as confirmed fit stated, the OEM sensors when removed were 433mhz, and not 315mhz. I later found a site that says the car manufacturer used either of the 315 or 433 frequencies for the Chevy volt 2017 model year, to find out which frequency you need to look at the originals.

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.