How to Open and Replace the Battery in a Nissan Sylphy Remote Key?
2 Answers
First, remove the mechanical key, then use a flat-head screwdriver to pry open a small gap from the side seam of the key. Continue prying along the opening to separate the seams. Insert your fingernail into the middle seam of the remote, gently squeeze, and apply slight outward force to open the key's outer shell. Use a flat-head screwdriver to remove the old battery and insert the new one. Then reinstall the circuit board into place, align the key cover properly, and snap the outer shell back together.
I just replaced the battery in my Nissan Sylphy remote key a few days ago, and the whole process was quite simple. Generally, you'll need to prepare a new button battery, usually the CR2032 model, and confirm the size matches the old one. There's a small gap along the edge of the key casing – gently pry it open with a thin plastic tool or your fingernail, being careful not to use too much force to avoid breaking the plastic clips. Once the casing is open, you'll see the battery compartment. Carefully remove the old battery, insert the new one (pay attention to the polarity to avoid reversing it), then snap the casing back together. Test the buttons to ensure proper functionality. These batteries typically need replacement every 2-3 years – prolonged use degrades remote range, so I recommend periodic checks to avoid embarrassing situations when heading out. Also, perform the replacement in a dry environment with steady hands, and guard against static electricity to prevent short circuits.
