On Mon, 24 Jul 2017 13:43:58 -0400, Tekkie® wrote:

On my cars one cannot lock the transponder in the car. It does not have a
conventional metal key. I don't know how to handle it.

I had an issue with the sensor for the rear hatch always sensing "door
open" even when it was closed AND locked. Any attempt to lock a different
door would result in the computer unlocking all the doors to 'remind' you
that a door is open. Presumably this is to help prevent someone from
accidentally locking the keys in the car.

In order to lock all doors, I needed to either:

(1) Roll down the driver window, and enter the code to lock all doors.

(2) Turn everything off by removing the key from the switch, then pressing
the interior 'lock all doors' button.


In your case, since you need to be outside of the car after it is locked, I
would opt for (1), except put the window up first.

If that does not work, try wrapping aluminum foil around the transponder.
(It is not clear if having a transponder in the car causes your problem.)