How to Replace the Battery in a Nissan Sylphy Key Fob?
3 Answers
Nissan Sylphy's key fob battery replacement method is as follows: Step 1: Remove the mechanical key. Step 2: Use a flat-head screwdriver to pry open a small gap from the side seam of the key fob, then continue prying along the opening. Insert your fingernail into the middle seam of the remote, slowly squeeze it, and gently pry outward with some force. Step 3: Use the flat-head screwdriver to remove the old battery and insert the new one. Note that the positive (+) side of the battery should face downward. Step 4: Reinstall the circuit board into position, align the key fob cover properly, and press firmly to secure it.
I just replaced the key battery for my Nissan Sylphy last month, and it was actually quite simple. First, you need to buy the correct battery model. Most Sylphys use a CR2032 coin battery, which you can find at supermarkets or online. There’s usually a clip on the side of the key, and you can pry open the shell with your fingernail or a thin plastic piece—avoid using metal tools, as they can easily scratch or damage the plastic clips. Once opened, you’ll see the battery slot. Gently lift out the old battery, paying attention to the positive and negative orientation. The new battery should be inserted with the + side facing up. After installation, test the lock button first. If it works normally, snap the back cover back on. The whole process takes just two minutes—no need to waste money at the dealership.
I've helped my neighbor replace the battery in their Nissan Sylphy key fob a few times. The key is to be bold yet meticulous. All you need is a plastic card as thick as a bank card, and the battery is usually a standard CR2032, available at hardware stores for about 3-4 yuan. The key fob is designed quite user-friendly, with hidden latches on the side of the casing. Just insert the plastic card into the gap and apply a bit of force to pop it open. Avoid touching the circuit board inside; simply locate the silver battery holder, pry it out with your fingernail, and replace the battery. After replacement, test the remote's range with your car. If it doesn't work, the battery might be inserted backward—just reopen and reinstall it. This task looks complicated but is actually very easy, saving both money and time by doing it yourself.
