A:AnswerDon’t listen to “BigBoss”. Not sure why he would even answer if he wasn’t for sure. Luckily I didn’t take his word for it. For this exact fob it is CR2016.
A:AnswerMost likely it got ruined with water when the remote works properly it flashes orange then green telling you the car is on or red when the signal is not detected or the vehicle is to far . Replace it with a new one .