how to change lexus remote key battery?
Driver School Candidate
Joined: Jan 2002
Posts: 22
Likes: 0
From: FL
I got mine @ Fry's Electronics. They cost $1.49 each.
Everyone can replace the battery. You don't need a screw driver. It's so easy and effortless, you could be 70 years old and arthritis ridden and still do it easily.
1.) Pop the metal key portion out of the keyfob, stick it in that notch that fits and turn it.
2.) Keyfob opens in 2. Replace the battery using skills you picked up in Kindergarten - you remember the skill. Circle goes in circle. Don't go pounding a square block into circle.
3.) The circuit board is idiot-resistant. It's cut in a way so you can only have it fit back in the way it was meant to fit in.
4.) Snap the keyfob back shut and you're done.
Everyone can replace the battery. You don't need a screw driver. It's so easy and effortless, you could be 70 years old and arthritis ridden and still do it easily.
1.) Pop the metal key portion out of the keyfob, stick it in that notch that fits and turn it.
2.) Keyfob opens in 2. Replace the battery using skills you picked up in Kindergarten - you remember the skill. Circle goes in circle. Don't go pounding a square block into circle.
3.) The circuit board is idiot-resistant. It's cut in a way so you can only have it fit back in the way it was meant to fit in.
4.) Snap the keyfob back shut and you're done.
Last edited by dadoody; Feb 17, 2010 at 01:41 PM.
Pole Position
Joined: Oct 2009
Posts: 3,154
Likes: 14
From: Toronto
I think I'll need to replace mine sooner or later... it seems like the detection range is getting worse, but it could be my imagination.
Isn't the car supposed to tell you on the dash display when the fob battery is low?
Isn't the car supposed to tell you on the dash display when the fob battery is low?
Driver
Joined: Jun 2009
Posts: 195
Likes: 0
From: Somewhere in the USA
Driver School Candidate
Joined: May 2011
Posts: 44
Likes: 11
From: Connecticut
Driver School Candidate
Joined: Jan 2008
Posts: 25
Likes: 0
From: Missouri
I thought my dealer replaced mine but it went henky about 2 months later. Had one more start and got the car home. Touching fob to keyless start area and all - kind of gaffed off the car warning me that the key fob battery was low. Found a replacement at Walgreens for a couple of bucks. Bought some on Amazon for about 1-2 dollars each. Easy to replace per the owner's manual.
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