I purchased a new 2018 Mazda 3 in Aug 2018. It had 18 miles on it. In late November, the TPMS went off. I took it to the dealer's service department and they found 1 tire low on air but no nail. They said it could be from the vehicle sitting on uneven pavement in the lot. Two weeks later, the TPMS went off again. Took it to the same service department. They found all tires at 35 lbs/sq ft. Nothing wrong with the vehicle. They said, in the morning reset the TPMS. I did that. Two weeks later (yesterday), TPMS goes off again. Anyone have experienced this? Can I ask for a new vehicle?

 

Haven't heard of that issue; as for asking for a new car, you can always ask, however, the odds are like 99.9 to 0.1 against getting a car.

 

You can ask for anything.

I would insist that they figure out the problem and fix it. Asking for a new car could help you get them to fix it.