Louder North

We had the same issue as mtb9153 but with a new battery - just do the fuse pull and reboot the system. That solved our problem.

Do the fuse pull and reboot the audio system - otherwise it will run down the battery - at least that was our experience.

We had a similar experience with our 2013 SEL. Only 'clue' (if it was a clue), was that the radio would not turn on just prior to the apparent dead (but only a few months old) battery. Put it on a charger (6A) for a few hours and it has been good ever since... and the radio starting working normally as well.

We also recently replaced the 12V battery in our 2013 SEL and still had a weird electrical issue a few months later, It appears we had a random parasitic draw and it drew down the battery enough that it wouldn't respond to the FOB and there was nothing on the display when I got the door open with the metal key. Charging it through the posts under the hood for about 5 hours (6A charge) brought it back to normal and we have had no problems since.

Yes, normally 12.1 v should be plenty, but it wasn't in my case. After opening the car with the metal key, there was no display, nothing on the dash. FOB battery is 6 months old. It's weird. After charging the battery again, the radio started working again as normal.

We just had the 12v battery replaced by Ford recently in our 2013. Then, randomly, we noticed the radio would not turn on. After parking it for a few days, it wouldn't unlock/open with the fob (first clue that the battery is dead - now wondering if the radio not turning on was the hint of a random electrical drain). Opened the door with the metal key in the fob, opened the hood, and checked the voltage with my meter. Only 12.1 v (should be at least 12.6 -12.8 v). Hooked up the posts to my battery charger and left it that way for 5 hours (6 A charge). All good since then but will be checking voltage with my meter periodically.

Hey bsinboston, I also have a 2013 SEL. Have had it for 2 years now and running just fine with about 45000 kilometers on it. The original 12v battery died recently and had to be replaced (from Ford dealer), otherwise no issues. I've changed the fob batteries as well. Before getting this car I had Subarus as well (three of them since early 90's). I'm loving the CMax and this is a great forum for getting tips and other information on your car. Enjoy!

Just replaced the battery on our 2013 C Max SEL on the weekend (needed a boost to get it started). It was still the original; we have 45,000 km on the car. Replacement was the BXT 67R ($170 CAN) at the local Ford dealer.

Youtube is your friend. Easy to do yourself.

We get LOTS of snow here in the winter and good winter tires make all the difference (plus all the electronic traction control stuff). No complaints here for my winter driving experience.

We had this issue (radio would not turn off) on Friday night; pulling a couple of fuses (66 and 79 I think) did the trick!

When you remove the key from it's hiding place in the fob, there is a little slot in the fob cavity that fits the tab at the end of the physical key - you can use that to make it easier to turn the key.

The only thing I would want in my next vehicle would be the ability to tow something. AWD is overrated if you have good tires and ETC.

... and there is a corresponding slot in the key cavity to fit the tab at the end of the 'key' so that you can actually turn it.

I also changed batteries in my two fobs without problem (there was a good video how to do this on youtube). I have a couple of questions about the Intelligent Access Key (IAK) and the relationship to 'MyKey': Is a 'MyKey' just a IAK fob but with some restrictions or is it an entirely different fob? To get a MyKey for my daughter, do I have to get another fob and have it programmed for my car and then I can add the restrictions I want? thanks