How to Replace the Battery in a Hyundai Elantra Car Key?

1 Answers
ArianaDella
07/29/25 7:28pm
Here is the method for replacing the battery in a Hyundai Elantra car key: 1. Pull out the mechanical key, locate the gap in the middle of the plastic shell, pry it open with a flat-head screwdriver, remove the old battery, and install the new one, paying attention to the correct polarity. 2. After replacement, firmly press the separated key parts back together. Here are some precautions for replacing the Elantra car key battery: 1. Do not touch the circuit board or battery terminals. 2. The remote is waterproof. However, if it gets wet, dry it immediately. 3. When replacing the battery, ensure the electrode contact areas are free of dirt, grease, or other foreign objects.
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