Posted 01 December 2017 - 10:15 AM
This is a constant issue. Have a 2016 with 12k and replaced the batteries twice and the last (3rd) time the dealer supposedly reprogrammed something and replaced the batteries. That lasted 4 months then the message started again. Took the batteries out rubbed them and problem solved (for at least the last 4 days). Think this will be an ongoing issue.
How close to the vehicle are you storing the fob when you're not driving the vehicle?
I'm guessing the fob is a transceiver since the little red light turns green to indicate a successful remote start. As someone who rarely drives their MKX I have to wonder whether the fob has some sort of sleep mode if it's not used in a while to save battery life.
Current: 2016 MKX 2.7 AWD, Reserve, Ingot Silver on Cappuccino, 21s, Luxury, Climate, Driver Assistance, Technology, Cargo Utility, Multi-contour, Adaptive Steering
Previous: 2016 MKX 2.7 AWD Reserve, Luxe on Ebony and 2013 MKX AWD, Elite, Ingot Silver on Light Stone