How to Replace the Battery in a Changan Sedan Key?

[DelColton]

Open the button on the car remote key, and the mechanical key will pop out at this time. With the key icon facing upwards, hold both sides of the car key with your left hand, while pressing down with your right thumb and pulling outward with both hands. Apply downward force to the right half of the car key, then use a small knife to place it in the middle of the gap and pry it apart until the car key splits into two parts. Forcefully separate the part without the pattern from the middle gap. Between the two parts is a rubber strip. Use a small knife to pry open the circular lithium battery and replace it with a new one.

[Dennis]

I recently replaced the key battery for my Changan sedan, and it turned out to be quite simple. First, prepare a new battery, usually a CR2032 model, which is cheap and available at supermarkets or online stores. Then, locate the small gap or button on the back or side of the car key. Use a small screwdriver or coin to gently pry open the casing—be careful not to crack the plastic. Once opened, you'll see the battery slot. Remove the old battery, noting that the positive side faces upward. Insert the new battery in the same orientation, with the smooth side facing outward. Close the casing and press firmly until you hear a click. Finally, test the buttons by standing near the car to check if the unlock function responds quickly. The whole process takes just a few minutes, saving you a trip to the dealership and preventing unexpected battery failure. It's a good idea to keep a spare battery at home to avoid being stranded in a critical moment.

[Richard]

As a seasoned driver who has owned a Changan sedan for many years, I've replaced the key battery several times, and the basic steps are always the same. First, confirm that you need a CR2032 coin cell battery—don't get the wrong model. Locate the seam on the key and carefully pry it open using a plastic pry tool or a small tool to avoid scratching the key casing. After opening, remove the old battery, paying attention to the positive and negative orientation. Insert the new battery with the positive side facing up—usually, the labeled side is the negative. Close the cover and test if the functions work properly. If it doesn't work, check the battery orientation or whether the casing is securely closed. The battery typically lasts one to two years, so replacing it in advance saves money and ensures peace of mind. The whole process is simple and safe—just avoid using excessive force to prevent damaging internal components.

[VonDerek]

I have a Changan car, and replacing the key battery is quite easy. Find the small notch on the key and use a hard object like a coin to pry it open. After removing the old battery inside, buy a new one and replace it, making sure the round side faces outward and is placed correctly. Close the cover and press it tightly, then test if the car lights come on by pressing the buttons. If it doesn't work, try reinstalling or seek professional help.

[AvaAnn]

Changing the battery in a Changan key is super easy! Pry open the shell to reveal the CR2032 battery slot, remove the old battery and replace it with the new one facing upwards. Reassemble and test the button response by pressing it when close to the vehicle to see how it reacts. Make sure the battery model is exactly the same, and don't use too much force to avoid damage. DIY it quickly for endless fun.