How to Replace the Remote Battery for Lexus?
2 Answers
Here are the steps to replace the battery in a Lexus remote key: 1. The remote key contains a mechanical key; remove the mechanical key first. 2. After removing the mechanical key, there is a small groove in the middle of the plastic casing. Insert the mechanical key into the groove and gently pry it open. 3. Once opened, you can proceed to replace the battery. Additional information: The battery model for the Lexus remote key is: CR2032, a 3V coin cell. Lexus also offers a card key. Replacing the battery in the card key is also straightforward. Simply hold the card key firmly, grip the small tab securely with your other hand, and pull it outward with force to open it. The battery model for the card key is: ultra-thin CR2412.
When I noticed my Lexus remote wasn't working well, I figured out how to change the battery myself, and it turned out to be quite simple. Generally, car key batteries are CR2032 coin cells. First, locate the small gap on the side of the key and gently pry it open with a small screwdriver or coin. Don't use too much force to avoid scratching the plastic casing. Once open, you'll see the old battery—usually a small round disc. Make sure to install the new battery with the positive side facing up; if it's reversed, it won't work. After replacing, align the cover and press it back into place, then test the door unlock function. I find DIY battery replacement convenient—typically needed every two years or so. Buying batteries online is cheaper; just choose a reputable brand. Take your time during the process—safety first. If unsure, check the manual or ask a car-savvy friend for help.
