How do i get into a locked 2014 GMC Sierra Keys are locked in vehicle.?

To unlock a 2014 GMC Sierra with the keys inside, you can try using a slim jim or a long reach tool to manipulate the door lock mechanism, but this can be tricky and may damage the vehicle. Alternatively, you can call a locksmith or roadside assistance for professional help. If you have access to a spare key, you could also consider using a smartphone app if your vehicle is equipped with remote access features. Always ensure that you have the owner's permission before attempting to unlock a vehicle.