1 Keyfob to operate 2 vehicles

[1Stringy]

I just picked up my new to me 2019 Edge ST and my wife has a 2017 Flex.  
Rather than carry around 2 fobs or leave one home and be potentially without when needed.

 

has anyone tried to program 1 fob to 2 vehicles?

 

my rationale....

the fobs are only communicating in one direction, to the vehicle.  So once the vehicle is programmed to work with a fob, it shouldn’t be any issue for it to be programmed to a second vehicle?  No?

 

Anyone see anything wrong with my rationale or point to anything that could go wrong?

[WWWPerfA_ZN0W]

ask Jeff Leeper at https://www.fxbgkeys.com/ .

 

I know he has "universal" fobs that can be programmed to different vehicles, but IDK about multiple vehicles on the same fob.  My remote start tho has 2 vehicle capability, so it is quite possible.

Edited November 22, 2020 by WWWPerfA_ZN0W

[omar302]

9 hours ago, 1Stringy said:

I just picked up my new to me 2019 Edge ST and my wife has a 2017 Flex.  
Rather than carry around 2 fobs or leave one home and be potentially without when needed.

 

has anyone tried to program 1 fob to 2 vehicles?

 

my rationale....

the fobs are only communicating in one direction, to the vehicle.  So once the vehicle is programmed to work with a fob, it shouldn’t be any issue for it to be programmed to a second vehicle?  No?

 

Anyone see anything wrong with my rationale or point to anything that could go wrong?

 

The 2019 ST uses a 2-way remote at 902 MHz (US) frequency while the Flex uses a 1-way remote at 315 MHz (US). Cannot be done with the stock remotes.