I have 2 keys for my ford edge. one will not start the vehicle

https://www.youtube.com/watch?v=rupDdAd-u8o https://www.youtube.com/watch?v=0G5OuW7ENeY

Driving 4. Start - press the START/STOP button (for any length of time) while applying the brake pedal. Note: The indicator light on the start button will illuminate when the vehicle is in on mode and when the engine is started. There may be areas inside your vehicle where the IA key is not detected. If the message NO KEY DETECTED appears on your message center when you press the START/STOP button, it may be necessary to move your IA key to another area within the vehicle. The IA key may not be detected near the roof (between the driver or passenger sunvisor and the roof, or in the overhead console area) or in the extreme corners of the rear package tray, near your audio speakers. It is not recommended that you stow the IA key in these locations. If you move the IA key to a location where it has been detected before and you still see the NO KEY DETECTED message, your IA key's battery may be low or you may be in an area with excessive radio frequency interference. If this occurs, you can use the back-up method to start your vehicle (see below). Back-up method of starting: Your IA key uses a radio frequency signal to communicate with your vehicle and authorize your vehicle to start when you press the START/STOP button and apply the brake pedal. If excessive radio frequency interference is present in the area, or if the battery in your IA key is low, it may be necessary to start your car by inserting the IA key in the back-up slot, located at the front of the center console storage compartment. Insert the IA key into the slot with buttons facing down and with key ring out. After inserting the IA key into the back-up slot, use the START/STOP button and brake pedal to start your vehicle as usual. The vehicle should respond normally as long as the IA key is in the back-up slot. Once the vehicle is started, the IA key can be removed from the back-up slot, if desired. Fast restart feature: The Fast Restart feature allows you to re-start your vehicle within 20 seconds of switching the vehicle off, if a valid IA key is not present when the vehicle is switched off. When you switch your vehicle off without an IA key in the passenger compartment or 238 2012 Edge (edg) Owners Guide, 1st Printing USA (fus)

Start the vehicle with the key. Also try unlocking the vehicle with the electric locks. Either should fix the problem.

inside your key fop were the battery fits there is three soldered points
just check they are connected properly if not just re-solder the connection i had the same fault on my rover 400 and that sorted it. if you are not sure about the connections being soldered correctly fold a small amount of paper and put it on top of your battery holder and refit your fop and then try it that should work just as well.

I had the same issue on my 2013 Edge. Deleted the password expecting it to let me enter a new one. Since the password is unique to vehicle and not able to be deleted I went into the SYNC computer settings and reset to original settings. This takes a minute. The screen goes black. Opening the door or turning key off is not suggested. Resetting the in dash computer(sync) is the fix for deleting the original door key code.

has the key been programmed?

Hi mate.

Try this.

Lightly lubricate both the key and the ignition.

Now turn it slowly from left to right so you will not break the key.

When you have it moving a little, re-lubricate it again and work it as before.

This should free the working parts inside the ignition switch.

Failing that you will have to invest in a new one.

Ray

dealer only to re programme key into car it can only be done with vehicle, not away from it .Sorry for no easy fix unless you want to disengage the factory immobiliser,which if its a diesel is a fairly simple procedure but not for a petrol engine

buy a universal remote they program alot easier

TRY TO START THE VEHICLE IN NEUTRAL IF IT STARTS YOUR NEUTRAL SAFETY SWITCH HAS MALFUNCTION, OTHERWISE ITS MORE THAN LIKELY THE STARTER, TRY BOTH KEYS ,THE COMPUTER COULD HAVE LOST THE CODE IN THE KEY