A Lexus is all about the smooth drive, the luxurious interior, the horsepower. But it’s also about the little conveniences, like the key fob, for example. A simple little battery-operated device that makes your life just a tiny bit easier.
What kind of battery goes in a Lexus key fob?
A common CR2032 3V battery operates the Lexus key fob. These are easy to find, inexpensive, and simple to replace.
Where Can I Find One and What Will it Cost?
CR2032s are among the most common batteries in the world for small devices like key fobs. They’re pretty cheap, and you can find them almost anywhere from grocery stores to gas stations and auto-shops.
That said, prices may vary. You might find one at Wal-Mart for three bucks, or you could buy a ten-pack on Amazon for five. Our advice: Buy the ten-pack. That way you’ll never run out, and you’ll even have a few spares for other devices.
You can find branded CR2032s sold as Lexus key fob batteries, but it’s basically the exact same product you’re getting from Energizer. There’s not much point paying more than a couple bucks a battery.
How to Replace a Lexus Key Fob Battery
If your key fob isn’t working, nine times out of ten that’s due to a dead battery. Luckily, this is one of the easiest fixes possible.
- Use the small button on the key fob to remove your manual emergency key.
- Use a flathead screwdriver to pop the top and bottom halves of the fob apart at the seam.
- Take out the old battery and put the new one in, facing upward.
- Put everything back together.
That’s all there is to it. This fix should take you just a couple of minutes, even if you’re not that handy with electronics. You don’t even have to unscrew anything, you just pop the fob apart, swap the batteries out, and put it back together.
You might want to keep a screwdriver and a few extra batteries in your car to make sure you’re prepared should the battery burn out on you while you’re out and about.
If this doesn’t do the trick, you’ll want to troubleshoot for other problems. You might need a full system reset, which you can do by disconnecting and reconnecting your car battery, or you might have a dead fuse.
It could even be the key fob itself. Thankfully these aren’t too expensive to replace at the Lexus dealer, and may even be covered by your warranty.
