On 25-Sep-17 9:39 AM, Cindy Hamilton wrote:
....

The car locks itself as a security feature. The driver who leaves the
keys in the car is inconvenience him/herself.

And a "feature" can be too clever by half, oftentimes...there are many
valid reasons for not wanting to have to remove the stinkin' keys from
the car immediately that it's more of a nuisance than a help.

As Ed says, if a real thief is after it, it'll be gone in an eyeblink,
lock or no lock; about the only effective technique is one that actually
disables the car totally.

Looking for instances, it appears there is a design that if unlock with
the key fob but don't open door within 30/60 sec, the vehicle will
automagically relock.

I couldn't find a factory instance that conclusively indicated to me it
_should_ lock itself with the key in the ignition when just exiting the
vehicle, but there were many complaints on user forums of such behavior.

Many of those seemed to end up as being various electrical faults in the
locking electrical systems...

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