I have a 2004 so my car is about 10 - 11 years old. I was telling my friend the other day that I was expecting my batteries in the sensors to start failing. Next day my TPMS light came on. Checked all the tires and they were all at 29, so I assume battery failure. Wouldn't you know I just replaced all the tires 3 months ago, I should have realized I would be having this problem and replaced the sensors at that time.