The message Key Battery Low is appearing every time I use the car, regardless of which key I'm using. I have had the batteries changed by a reputable car mechanic, this worked for a few days and then the message returned. The batteries that are currently in the fobs are in full working order. My mechanic rang the local Ford dealer and was told If the passive vehicle key is inoperative because of a flat key battery or a fault, the vehicle can be started as follows: Place your key in the position indicated in your owners manual - this is usually in the centre console or by the steering column. On vehicles with an automatic transmission, make sure that the transmission is in P (Park) or With only one (1) fob near the vehicle, start the engine. With the engine running, press the Lock or Unlock button on the key fob one time. Repeat this procedure with all additional affected key fobs. When the vehicle properly samples the new key battery level the message will no longer be present. *The FordPass App, compatible with select smartphone platforms, is available through a free download. Message and data rates may apply. ** FordPass Connect (optional on select vehicles), the FordPass App, and Complimentary Connected Services are required for remote features (see FordPass Terms for details). Order Ford CMax Battery online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store. . According to a $140 diagnosis from my Ford dealer, the dash cam was draining power even when the car was off. Sure enough, when I stopped using it for a few weeks I never had another problem. Solved I guess! However, my other car (Toyota) has a dash cam always plugged in, has never died in ~10 years (C-Max was dying within a month). Ford Ranger key battery replacement Ford Transit key battery replacement Ford Focus key battery replacement Ford Mondeo key battery replacement Ford C-Max ke Presentation Title. Locate the make and model of your vehicle. The battery type and quantity (listed in parenthesis) are listed for the years 2014-2021. Please refer to your owner’s manual for advice on how to change your keyless remote battery. If you cannot locate your make and model, locate the FCC ID# for your keyless entry on the back of #fordkey #batterychange #geekstretHow to replace a battery on a Ford Key Fob / Remote Key Fob.This tutorial shows how to replace a battery on a Ford Key Fob For instructions on how to replace the coin-type three-volt lithium battery in your key fob, refer to your Owner's Manual under "Keys and Remote Control." Notes: Do not wipe off any grease on the battery terminals or on the back surface of the circuit board.

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