How to Replace the Key Battery for Envision?
3 Answers
To replace the key battery for Envision, follow these steps: 1. Use a screwdriver to pry open the gap on the side of the key; 2. Bend the back cover toward the closed end to remove it; 3. Take out the old battery and replace it with a new one of the same model; 4. Reassemble the key in the reverse order of disassembly. Taking the Envision 2021 model as an example, it is a 5-door, 5-seat MPV under the Buick brand, with body dimensions of 4694mm in length, 1839mm in width, and 1686mm in height, a wheelbase of 2750mm, a fuel tank capacity of 66 liters, and a curb weight of 1610kg.
I also encountered a dead key fob battery when driving my Envision before, and changing the battery myself went smoothly. Find a small screwdriver or thin tool, gently pry open the small gap on the back of the key fob—there’s usually a small notch designed there. Don’t use too much force to avoid scratching the casing. Inside, you’ll see a coin cell battery, typically a CR2032 model. Before removing the old battery, note the positive and negative polarity to avoid reversing it. Just insert the new battery the same way. When closing the key fob, press the clips firmly and test the buttons a few times to ensure they unlock the car door properly. The whole process takes less than five minutes, and the battery costs just a few dollars at a supermarket or online—it’s good to keep a spare handy. I also recommend regularly checking the key fob’s waterproof seal and battery life. The Envision’s key fob is well-designed, but with prolonged use, the battery drains quickly. Doing it yourself saves the cost of a dealership visit.
As a long-time owner, I've mastered the quick and precise process of replacing the Envision key fob battery. First, prepare a replacement CR2032 battery and a flathead screwdriver. There's a subtle gap on the side of the key fob - gently pry it open without applying too much force to avoid damaging internal components. After opening, note the old battery's positive side facing up, then remove it using a fingernail or small tweezers. Insert the new battery in the same orientation. When closing, listen for the click to ensure proper fastening, then test the buttons to confirm functionality. Avoid dropping the key during the process to prevent circuit board damage. I've found the battery lasts about two years, so keeping spares at home prevents midnight emergencies. Never use cheap batteries as unstable voltage can fry the key's chip - this simple maintenance task is worth doing right.
