Vacuum Electric Pump comes on every time i touch brake

[xdarox]

I can start the truck with remote start and its not coming on, but as soon ill touch the brake pump comes on for like 6-8 seconds . What could be the problem ?

 

[HSKR R/T]

I can start the truck with remote start and its not coming on, but as soon ill touch the brake pump comes on for like 6-8 seconds . What could be the problem ?

It's a vacuum assist pump for the brakes, so makes sense