Key fob battery keeps dying

[touchton]

Just noticed the fob battery warning this morning. The new battery has been in 65 days. I'm going to see how long it lasts before it's no longer operational.

As of this morning the key fob is no longer detected. So, 11 days post first low battery warning. My battery lasted a total of 76 days.

 

[Kandiru]

Same here in my 2015, got a 315MHz $60 fob off Ebay, service center programmed it for free.
Be careful with which one to get, there are at least three versions, and EU are different.

 

[krsgio]

Been burning through batteries for my fob (2015 MS). Replaced battery in Sept and this morning had low battery notification. Fob battery life seems to be getting worse and worse. At one point my battery seemed to last at least a year now its barely getting a few months. Might try switching to something beside the Energizer batteries.