How should the doors lock?

[mr. fix it]

My 66 Polara has to be manually locked...
I think this was a way to keep a person from locking their keys in their car...

 

[Triple Pickle]

My 66 Polara has to be manually locked...
I think this was a way to keep a person from locking their keys in their car...

Exactly. Simply put, the door can’t be locked unless it it closed.

 

[rapidtrans]

The first year for keyless door locking is 1971.

Agree.
How do I know? I locked the keys in Dad’s 71 Satellite Sebring twice that fall before I figured it out.

 

[Triple Pickle]

Here’s a 72 Dodge sedan that has been coat hanger unlocked. Maybe more than once! Note the chipped paint and destroyed rubber around the door.