ArizonaEnergi Posted February 2, 2016 Report Share Posted February 2, 2016 I'm coming up on 3 years and noticed the handle unlock feature is requiring us to have the fob within a few inches of the door. I'm guessing the battery is getting low. How long do they last, or what else might be causing this problem. Three more weeks of warranty! Quote Link to comment Share on other sites More sharing options...
plus 3 golfer Posted February 2, 2016 Report Share Posted February 2, 2016 Same issue with my 2008 Rogue (nearly 8 years old). It was getting so bad that several times I had to put the transponder near the door and more importantly by the ignition switch to start. So, I went to Battery Plus several months ago to get the battery replaced in the Rogue. While there I had them check the C-Max battery as many time I couldn't unlock the door unless I turned my right side towards the door (FOB in right pants pocket). The FOB had to be maybe within a foot or so to work consistently. Battery Plus checked it and suggested I replace it also which I did. No more issues with opening the C-Max door. :) My C-Max was out of the B2B warranty (over 36k miles). So, I got just shy of 3 years life out of the C-Max FOB battery. My wife's C-Max FOB still seems okay at 37 months. IIRC, the cost was around $5 / $6 or so per battery at Battery Plus. I could have probably gone to Walmart and found a pack of 2 for the same price as one at Battery Plus but then I'd have to open both FOBs up. Quote Link to comment Share on other sites More sharing options...
C-MaxSea Posted February 3, 2016 Report Share Posted February 3, 2016 (edited) Noticed a couple non-recognition dash notes on start-up a few days ago. Dropped $5.99 and changed the batteries on both of our key fobs - belt & suspenders .......... They were presumably about 3.5 years old. Warranty ? Not worth a trip, for sure. Nick Edited February 4, 2016 by C-MaxSea Quote Link to comment Share on other sites More sharing options...
ArizonaEnergi Posted February 3, 2016 Author Report Share Posted February 3, 2016 (edited) Thanks all. I'll be Amazon Priming (5 for $5.99) these today: C-Max manual pg 60: "The remote control uses one coin-type three-volt lithium battery CR2032 or equivalent." Edited February 3, 2016 by ArizonaEnergi Quote Link to comment Share on other sites More sharing options...
cwstnsko Posted February 3, 2016 Report Share Posted February 3, 2016 If you have an IKEA in your area, they have these batteries in an 8 pack for $1.99 http://www.ikea.com/us/en/catalog/products/80291156/ Quote Link to comment Share on other sites More sharing options...
scottwood2 Posted February 5, 2016 Report Share Posted February 5, 2016 Mine lasted about 10 months. I think it should last longer. We will see on battery #2. Other key is still going after 16 months. Quote Link to comment Share on other sites More sharing options...
ptjones Posted February 5, 2016 Report Share Posted February 5, 2016 Mine hasn't been working that for awhile so I went ahead replaced it. It was 2.90vlts and the new one 3.13volts and cleaned it up too. I was lucky I had a bunch of the batteries. :) Paul Quote Link to comment Share on other sites More sharing options...
ptjones Posted February 7, 2016 Report Share Posted February 7, 2016 Well my fob isn't working very well at all now so I took it to FORD but they said they need both of my FOBs to fix it. I checked my spare fob and it works great so back to FORD next week. ;) Paul Quote Link to comment Share on other sites More sharing options...
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