How to Replace the Battery in a 2017 Lexus RX 350 Key Fob
If your Lexus keyless entry remote is no longer working perfectly, the battery probably needs to be changed. In this article, we demonstrate how to disassembly your car key fob and replace a dead or weak battery DIY. If you decide to do it at home near RX 350, use this instruction, but first make sure you have tools and materials required before you start.
What size battery does 2017 Lexus RX 350 remote key fob requiredPrior to disassembly remote key fob check all that you need: flat head screwdriver and CR2032 battery.
- flat head screwdriver
- 1xCR2032 battery
Step by step guide
A small coin battery installed inside the your key fob. Move the key out of the way if it is in the key fob.
Carefully try to disassemble your fob with pry tools. Change one CR2032 battery with flat head screwdriver.
Change old battery with new one CR2032. Battery must be installed with the same polarity as was a previous. Your keyless entry remote will not work if you by mistake put battery wrong way.
Before assembling keyless entry fob's case, verify that all working fine by testing buttons on circuit board.
The last thing to do is put your cover back on fob. Carefully try to put the two halves together by hands from top to bottom. If your key shell firmly closed, we done. If not, repeat the last step.
How to change the battery video instruction
DIY - LEXUS How to change SmartKey Key fob Battery on Lexus RX350 ES350 RX450
Still not working? Buy new one