Installed when I installed new tires on my WK Jeep Grand Cherokee, the light went out but still came on sometimes. Thought it might be a while before it all goes down. But every day at least once a light went on with the inscription Service tire pressure monitoring system. Bought so this never happens again. Then I took a trip and hit the interstate at 75 mph, losing all but one of the gauges. See image. I think when you travel at high speed they stop reading. Very disappointed with it. Spend the money on the ones the dealer has and don't look at the cheap ones now I have to spend $90 absolutely free. waist money. And they don't read properly. When the dealer uses a scanner to read gauges, it reads 10psi higher than when using a real gauge. I want my $$$ back, this is a scam. garbage seller