Sponsored

One key fob two vehicles?

s10mods

Active member
First Name
joe
Joined
Mar 6, 2026
Threads
11
Messages
33
Reaction score
22
Location
Michigan
Vehicles
2023 Mach E
Occupation
Engineer
I have a Mach E that I purchased an F150 key fob to have the frunk button, I now have a lightning. Could I program one key fob to both vehicles? I don't trust the phone as a key so I always carry the fob and carrying 2 of them and my other keys in my pocket is getting pretty bulky.
Sponsored

 

Maquis

Well-known member
First Name
Dave
Joined
May 20, 2021
Threads
10
Messages
4,414
Reaction score
5,928
Location
Illinois
Vehicles
2021 Mach-E E4-X; 2023 Lightning Lariat ER
I use PAAK for my Mach-E and hide a fob in a Faraday bag inside the car just in case. I’ve never had to dig the fob out.

I don’t think it’s possible to do what you are asking.
 

21st Century Truck

Well-known member
First Name
Martin
Joined
Jul 11, 2024
Threads
20
Messages
1,182
Reaction score
1,518
Location
Virginia
Vehicles
Ford 150 Lightning 2023 XLT ER pkg. 312A
I also had a Mach E. I also bought a fob from a former Mach E member on that blog, because it had four usable buttons instead of the three buttons the Mach E fob had... maybe to use that extra button for the rear hatch? ...just can't remember now.

When I traded the Mach E for my Lightning I easily reprogrammed that extra fob for the Lightning, using the two OEM Lightning fobs (to self-program a fob for free You need two fobs to begin with, plus the new programmable one).

So the point here is that a Mach E fob (or another Ford fob, as my extra fob might have been from a gas Mustang (??) can indeed migrate to a Lightning.

This of course is not a direct answer Your question... and like Maquis above I highly doubt it, as if that were true then fobs could logically be immediately used across a range of Ford cars, without individual programming to a particular car. I do not think Ford Corporate would allow that - think of the liabilities for theft and think about the potential unending mix-ups at any dealership or service shop.
 

Timeless Epoch

Well-known member
First Name
Chad
Joined
Mar 3, 2025
Threads
7
Messages
225
Reaction score
394
Vehicles
2024 F150 Lightning Platinum
Occupation
Professionally: Disaster Recovery - Recreationally: Watchmaker
If you could, wouldn’t you be locking and unlocking ALL the doors when everyone was home?
 

Maquis

Well-known member
First Name
Dave
Joined
May 20, 2021
Threads
10
Messages
4,414
Reaction score
5,928
Location
Illinois
Vehicles
2021 Mach-E E4-X; 2023 Lightning Lariat ER
You can setup PAAK for both vehicles on one phone, though.
 

Sponsored

Maquis

Well-known member
First Name
Dave
Joined
May 20, 2021
Threads
10
Messages
4,414
Reaction score
5,928
Location
Illinois
Vehicles
2021 Mach-E E4-X; 2023 Lightning Lariat ER
If you could, wouldn’t you be locking and unlocking ALL the doors when everyone was home?
The doors don’t unlock until you pull the handle (or push the button, in the Mach-E’s case).
 

irunalot

Active member
Joined
May 29, 2025
Threads
0
Messages
34
Reaction score
41
Location
Michigan
Vehicles
2025 F150 Lightning
Occupation
Engineer
I have a Mach E that I purchased an F150 key fob to have the frunk button, I now have a lightning. Could I program one key fob to both vehicles? I don't trust the phone as a key so I always carry the fob and carrying 2 of them and my other keys in my pocket is getting pretty bulky.
I have done this before... years ago. I vividly remember, when someone hit the panic button on the fob, one vehicle responded and the other didn't. So I pressed the panic button again and guess what, one shut off and the other one started up! It took a minute but I got it under control. 😂
It can get tricky.

I does work though. Go to YouTube and research how to program the fobs. It's not too difficult.
 

Adventureboy

Well-known member
First Name
Jonathan
Joined
Jan 30, 2023
Threads
2
Messages
1,294
Reaction score
1,368
Location
Ontario
Vehicles
2023 F150 Lightning Lariat
I have both on PAAK. Works fine. If I need to shuffle them around in the driveway, I just take a keyfob for one and PAAK set to the other. Works faster than switching PAAK between EVs when you need to move each a couple of times to get sorted.
 

Sponsored

DatOleMan

Well-known member
Joined
Apr 11, 2024
Threads
2
Messages
50
Reaction score
78
Location
Buzzz20!23
Vehicles
2023 Lightning Lariat and 2022 Mach e Premium
I have the same vehicles. I have both on PAAK and I carry the fob for the vehicle I’m driving.
 

chl

Well-known member
First Name
CHRIS
Joined
Dec 16, 2022
Threads
9
Messages
3,886
Reaction score
2,404
Location
alexandria virginia
Vehicles
2023 LIGHTNING PRO, 2012 Nissan Leaf, 2015 Toyota Prius, 2000 HD 883 Sportster
Occupation
Patent Atty / Electrical Engineer
You might be able to get Ford to reprogram one of the vehicles to accept the same code as the other, but I'm doubtful.

Each FOB has a particular frequency they operate at and a particular FCC code number (hidden under the battery cover at the front of the FOB.

It could be the Mach-e and Lightning use the same frequency, they change it between model years sometimes.

With TV sets they make universal remote that can be programmed for a particular TV, VCR, DVD player, and cable/sat box.

But as I understand it, a key FOB can only be programmed to work with one vehicle at a time. One reason is the rolling code feature:

Each time you use the fob, the security code changes. If it is used on a second car, it will go out of sync with the first car.

Maybe there is a FORscan hack that could sync up both vehicles though?
Sponsored

 
 







Top