How to replace the battery of the Southeast DX7 key?
2 Answers
Southeast DX7 key battery replacement method: First remove the mechanical key, then pry open the chrome decoration of the smart key, split it from the middle, remove the old battery, and install the new battery. It is recommended that the owner confirms the battery model when purchasing to avoid buying incompatible batteries. The Southeast DX7 has a body size of 4354mm in length, 1840mm in width, and 1670mm in height, with a wheelbase of 2610mm. The Southeast DX7 is equipped with two engines: a 1.5-liter turbocharged engine and a 1.8-liter turbocharged engine.
I often replace the battery for my Soueast DX7 key fob myself—it's simple and cost-effective. The key is usually a plastic-backed remote type, using a CR2032 battery that can be bought for a few dollars at supermarkets or online. Before starting, find a quiet spot like your dining table at home, with good lighting and a calm mood. Gently pry open the back cover using a fingernail or small screwdriver along the seam, being careful not to apply too much force to avoid breaking the clips. Inside, you'll see the old battery slot—note its polarity, typically with the negative side facing outward. Remove the old battery, clean the contacts with a cotton swab to prevent poor connection, and insert the new battery in the same orientation, pressing it in lightly without forcing it. When closing the cover, a 'click' sound confirms it's secured. Immediately test the remote by pressing a button to check if the red light turns on. Try unlocking your car in the garage to ensure it works. A battery usually lasts about two years, but frequent remote-start usage drains it faster. A tip: avoid leaving the key in hot places like a sun-exposed dashboard, as heat speeds up battery degradation. Keep a spare mechanical key in your wallet for emergencies if the battery dies. I check my key's responsiveness quarterly—it's a habit that saves hassle.
