If you are speaking of the rear hatch on a targa top vette, theres no keys for the back. Inside the center console glove box, theres a little yellow button that will pop it open. Those sometimes break, in that case there is little black slide buttons on the side of each door.
remove rear seat and insulation
with the button on the drivers door? How do you get in the car without keys though?
There is a button on back underneath the spoiler.
Sounds like a job for a locksmith
Contact a GM dealer and see if they can make you a copy of the keys from the VIN. Otherwise you may have to call a professional locksmith.
locked keys in truck of 2000 alero. how to open?
If the 94 LeSabre trunk does not have a remote release, check the rear sear to see if the back is removable, to gain access to the trunk. If there is no access, then either a locksmith will need to pick the trunk or you will have to drill the trunk.
how do i open the trunk of my 2007 mustang if the keys are locked inside
Remove the rear seat, and use a really long extention to unbolt the latch from inside of the trunk.
in the trunk! but you have to get in the trunk with your keys though!
A torch
The year, make and model info would be useful but with some vehicles you can gain access to the trunk by removing the back seat.