How to Replace the Battery in a Buick Remote Key?
2 Answers
Pop open the key, insert a flat-head tool into position A as shown in the diagram, and apply pressure in the direction of the arrow until the retaining clip releases. Insert a flat-head tool into position C as shown in the diagram, and apply pressure in the direction of the arrow until a gap forms at the tail end of the key. Insert a flat-head tool into the gap at the tail end as shown in diagram D, gently pry the battery cover until the two retaining clips at the tail end of the battery cover fully release. Firmly press the button battery and push it forward to remove the battery. Place the new battery into the circular slot, ensuring it is fully inserted into the tail-end slot to guarantee proper and complete contact between the battery and the circuit board.
I found changing the battery in my Buick key fob is a cost-effective DIY task. For my Regal's key, when the signal weakened after prolonged use, I did it myself. First, check the back of the key fob for a thin seam or small groove – I usually use nail clipper tips to gently pry open the cover; in a pinch, a coin works too. Inside, there's a coin cell battery, typically CR2032 for Buicks, which you can buy in bulk online for just a few dollars. Remove the old battery, noting the positive side faces up (marked with a +), then insert the new one carefully to avoid reversing it. Snap the cover back on and test the lock button to see if the light activates. I always opt for name-brand batteries like Panasonic for longer lifespan. Wash hands before handling to prevent oil-induced circuit shorts. If the signal fails, check for reversed battery or wrong model – just realign it. The whole process takes 10 minutes, saves $30 on shop fees, and teaches a handy skill.
