How to Replace the Battery in a Nissan Teana Key?
2 Answers
Method for replacing the battery in a Nissan Teana key: 1. Prepare the necessary tools, including a screwdriver and a new battery; 2. Press the button on the back of the key fob; 3. Remove the mechanical key; 4. Use the prepared tool to open the key fob; 5. Replace the battery and reassemble the key. The Teana is a sedan under the NISSAN brand, with exterior dimensions of 4901mm in length, 1850mm in width, and 1450mm in height, a wheelbase of 2825mm, and a body structure of a 4-door, 5-seater sedan. It is equipped with a 2.0L 156 horsepower L4 engine, delivering a maximum power of 115 kW and a maximum torque of 197 N·m.
Previously, my Nissan Teana key fob stopped working, so I found a DIY video and learned to replace the battery myself—it was super easy. There's a small notch on the back plastic cover of the key; you can gently pry it open with a fingernail or a screwdriver, but don't use too much force to avoid damage. Inside, there's a round coin battery, model CR2025, which costs just a few bucks at a battery store. When removing the old battery, be careful not to drop it. When installing the new one, make sure the positive side faces up, or it won't work. After reassembling, press the cover gently to secure it, then immediately test the key to see if it responds normally when locking/unlocking the doors. Doing it yourself saves dozens of dollars in shop fees and is quicker. I recommend buying a few spare batteries for next time. Key fob batteries drain faster with prolonged use, so checking and replacing them regularly can prevent the awkward situation of getting stranded halfway.
