Ford C-Max 2013-2019 Key Programming Procedure
The following are the key programming procedures for the year 2013, 2014, 2015, 2016, 2017, 2018 and 2019 Ford C-Max.
ADD KEY (Must have two working original keys):
1. Insert the first previously programmed coded keys into the ignition.
2. Turn the ignition from the 1 (LOCK) position to the 3 (RUN) position. Keep the ignition in the 3 (RUN) position for at least 3 seconds, but no more than 10 seconds.
3. Turn the ignition to the 1 (LOCK) position and remove the first coded key from the ignition.
4. Within 10 seconds of turning the ignition to the 1 (LOCK) position, insert the second previously coded key into the ignition.
5. Turn the ignition from the 1 (LOCK) position to the 3 (RUN) position. Keep the ignition in the 3 (RUN) position for at least 3 seconds, but no more than 10 seconds.
6. Turn the ignition to the 1 (LOCK) position and remove the second coded key from the ignition.
7. Within 20 seconds of turning the ignition to the 1 (LOCK) position and removing the previously programmed coded key, insert the new un-programmed key (new key/valet key) into the ignition.
8. Turn the ignition from the 1 (LOCK) position to the 3 (RUN) position. Keep the ignition in the 3(RUN) position for at least 6 seconds.
9. Remove the newly programmed coded key from the ignition.
If the key has been successfully programmed, it will start the vehicle’s engine and will operate the remote entry system (if the new key is an Integrated Keyhead Transmitter). The theft indicator light will illuminate for 3 seconds and then go out to indicate successful programming. If the key was not successfully programmed, it will not start your vehicle’s engine and/or will not operate the remote entry features. The theft indicator light may flash on and off. Wait 20 seconds and you may repeat Steps 1 through 8. If the failure repeats, bring your vehicle to your authorized dealer to have the new key(s) programmed.
To program additional new un-programmed key(s), wait 20 seconds and then repeat this procedure from Step 1.
About Ford C-Max
Motor Trend revealed in December 2012 that Consumer Reports and Green Car Reports discovered that the 2013 Ford C-Max Hybrid and 2013 Ford Fusion Hybrid, which share the same powertrain, do not achieve the EPA’s triple 47 mpg US (5.0 L/100 km; 56 mpgimp) rating in real-world driving. Consumer Reports determined that the C-Max hybrid averaged 37 mpg US (6.4 L/100 km; 44 mpgimp) in combined driving, with 35 mpg US (6.7 L/100 km; 42 mpgimp) in city driving and 38 mpg US (6.2 L/100 km; 46 mpgimp) on the highway.  According to Green Car Reports, the C-Max achieved 37 mpg US (6.4 L/100 km; 44 mpgimp) over 50 miles (80 km) of mixed freeway and urban driving and 40 mpg US (5.9 L/100 km; 48 mpgimp) over 240 miles (390 km) of predominantly highway driving.
Consumer Reports assessed that the C-Max Hybrid’s overall fuel economy is wrong by 10 miles per gallon, or nearly 20%. According to the consumer magazine, their total fuel economy findings are typically close to the EPA’s combined-mpg estimate, and more than 80% of contemporary cars tested fall within a 2-mpg margin. The magazine previously discovered a disparity of 7 and 6 miles per gallon for the Toyota Prius C and Prius hatchback, respectively. Ford issued a statement in response, stating that “Customers who purchased the C-MAX Hybrid and Fusion Hybrid early on have praised the vehicles and reported a range of fuel economy results, including some exceeding 47 mpg. This demonstrates how driving styles, driving circumstances, and other variables can affect mileage.”
Several days later, the Environmental Protection Agency (EPA) said that it will investigate reports that two new Ford hybrid vehicles did not achieve the stated 47 miles per gallon. Linc Wehrly, Director of the Light-duty Vehicle Center’s Compliance Division at the EPA’s National Vehicle and Fuel Emissions Laboratory in Ann Arbor, Michigan, stated that hybrids’ miles per gallon range was significantly greater than that of conventional automobiles. All vehicles are subjected to the same EPA fuel-efficiency test, although the EPA does not administer the test; rather, automakers administer it, and the EPA frequently conducts reviews. The real-world gas mileage of the majority of automobiles is less than the EPA sticker rating, and is frequently 20% less depending on speed, temperature, and other factors. The EPA said that the margin was substantially wider with hybrids, reaching up to 30%.