Fig 1: Replacing Electronic Key Battery

Courtesy of NISSAN MOTOR CO., U.S.A.

Remove the mounting screw on the back side of the electronic key, and insert a slotted screwdriver wrapped with tape into the emergency key slot. Twist the screwdriver to separate the upper body from the lower body. Then take out the electronic key transmitter.
CAUTION: During disassembly, do not impact the transponder on the lower body.
Insert a slotted screwdriver wrapped with tape into the electronic key transmitter (A) and twist the screwdriver to disassemble the transmitter.
Replace the battery fixed on the lower body. Be sure to install new battery properly with the positive side facing the lower case.
CAUTION:
- During disassembly, be careful not to touch the board surface. Visually check the board for color change (bluish) and deposit.
- When replacing the battery, keep the electrode contact clear of foreign materials such as dust and grease.
After replacing the battery, engage the tab on the side of the body while being careful not to pinch the rubber, and assemble the upper and lower bodies.
While being careful of engagement between the upper and lower bodies at the end, assemble the electronic key transmitter, and tighten it with screws.
CAUTION: After replacing the battery, be sure to check that the door locking operates normally using the electronic key.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Electronic Key Battery Replacement: Notes