![]() ![]() Gently pry on the circuit board with a flathead screwdriver and lidt up the circuit board. Now pick up the other half of the key with the circuit board. Step 2Ĭarefully set aside the fob casing with the buttons. The key will come apart in halves as soon as you twist. When you find it, click a flathead screwdriver into the indent and twist. Check for an indentation right across the keyhole. Press the button on the side and pull out the internal valet key. Set the circuit board back into the casing and click the back casing together with the front case.Ĭongrats! You’re done with your Toyota 4runner key fob battery replacement.Ĭheck Price on Amazon How to Replace the Toyota 4Runner “ Rounded Rectangle” Key Fob Battery ( 2010-2021) Now place in the new battery with the positive side(note that the positive side is the part with text) facing up. Insert a flathead screwdriver into the space between the plastic and the battery and gently pop out the old battery. Set aside the back case and carefully lift out the circuit board that houses the battery. The fob key back casing will come off to reveal the dead battery as soon as you twist. Insert a flathead screwdriver into that space and gently twist. ![]() Step 2Ĭheck for a small indentation perpendicular to the valet keyhole. Hold down the button and carefully slide out the fob battery. Turn the key to the side and check for a “push” button. Watch the video below for a step-by-step tutorial on how to change the battery in your key fob. Watch the video below or keep reading for a step-by-step tutorial on Toyota 4runner key fob battery replacement.Ĭheck Price on Amazon How to Replace the Toyota 4Runner “ Tombstone” Key Fob Battery ( 2020, 2021) How to Replace the Toyota 4Runner “ Fixed” Key Fob Battery ( 2020, 2021) Follow this Toyota 4runner key fob battery replacement guide to find your particular key fob and see the corresponding video and text tutorial showing you how to change the battery.įor other Toyota models, see our Toyota key fob battery page. Changing the internal battery in each key fob is easy and can be done at home. It has used seven key fob keys over the years. Assembly is reverse of removal.Did you know that the Toyota 4Runner is known to be one of the brand’s toughest and most reliable vehicles? Not only that, the Toyota 4Runner has a long history dating back to 1983. Then use a paperclip or thin flat-head screwdriver to pry up the battery cover plate, the BLUE arrow is where you can pry from.Ĥ) Swap out the CR2032 battery, the positive (+) side faces the cover panel. If this doesn't easily slide off try using a rubber glove to get additional grip on the FOB.ģ) Remove the 4 screws circled in RED using a philips #0 screwdriver. Precision screwdrivers, Philips #0 at minimumġ) With the FOB buttons facing up, slide the spring-loaded holder to the left ( RED) and while doing this pull the key up and out ( BLUE).Ģ) With the FOB buttons facing down, slide the spring-loaded holder to the right ( RED) and while doing this push the back panel up ( BLUE), it should slide right out.I'd say a 3-5 year lifespan, not too bad. It looks like original batteries are made by Panasonic as that's what has come out of both my '08 and '09 Prii key FOB's. Since there is no mechanical key to start the car you'll want to swap this battery as soon as you notice any signs it's getting weak. ![]() In other words, the car has multiple ways to tell you to replace the FOB battery. ![]() I also noticed the security "key" icon flashing on my dash after shutting off the car. What are those? Well, after shutting off the car it beeps at you, range may be reduced and it may not function at all. This job has been documented before as it's straight out of the Prius Owner's Manual (pg 392 for my 2009) but I wanted to document my take on the job for site completeness especially since my "new" 2009 just started giving me the indications the key battery needs replacement. ![]()
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