How To Change Rdx Key Battery. Use the metal key to pry open the fob via the opening the metal key came from. After replacing the battery in the key fob remote you will need to reprogram the remote to the vehicle.
Use the metal key to pry open the fob via the opening the metal key came from. Ensure that the batteries are not installed backward. The key fob will need to be reprogrammed to the vehicle as when the battery was replaced in the key fob the key was reset.
Open the Hood - How to pop the hood and prop it open.
Remove the old battery from the key fob. I had another battery that measured more voltage and tried it and now everything works. Once open you can then remove the battery and put a new one in. I would suggest anyone with a 2014 MDX change the battery soon so you do not have this problem.
