Most Jeep TPMS sensors last between five and ten years, with the average falling around seven years before the internal battery wears out. Since that battery is sealed inside the sensor, you can't recharge or replace it separately, so once it dies, the whole sensor needs to be swapped for a new one.
The reason these sensors don't last forever comes down to how they're built. Each one contains a small lithium battery that powers a tiny radio transmitter, which constantly sends your tire pressure readings to your Jeep's computer, especially while you're driving. Every signal it sends draws a little bit of battery life, so the more miles you rack up and the more your Jeep sits in stop-and-go traffic, the faster that battery drains. Extreme temperatures play a role too. Michigan's swing from humid summer heat to sub-freezing winter cold puts extra strain on the battery chemistry in these sensors, which can shorten their working life compared to a car that lives in a milder climate year-round.
Age isn't the only factor working against your sensors. Physical damage from potholes, curb strikes, or corrosion around the wheel can cause a sensor to fail well before its battery would have naturally given out. If you've had your Jeep for six or seven years and haven't thought much about your TPMS, it's a reasonable time to have the sensors checked, particularly if you're already noticing the warning light flickering on and off or staying lit longer than it used to.
A practical way to think about it is tying TPMS sensor checks to major milestones you're already tracking, like tire replacement or a seasonal changeover. If your Jeep is due for new tires soon and your current sensors are approaching that five-to seven-year mark, it's worth asking your technician to inspect them while the wheels are already off. That way, you're not paying for a separate visit down the road when one finally quits.
If your Jeep's tire pressure light has become a regular annoyance or you're just not sure how old your sensors are, Hoover Street Auto Repair in Ann Arbor can check them for you and let you know exactly where things stand. Their experience with Jeep TPMS systems means you'll get a straight answer instead of a guess.