In article , The Natural Philosopher
writes
On 01/09/16 09:12, Scott M wrote:
harry wrote:

NOT a good idea on some modern cars.
The on board computer may loose it's program if disconnected.

Is there, literally, anything you're not wrong about?

Well to be fair SOME onboard computers may lose SOME of their
*configurations*


Examples a car radio anti-theft kicking in and needing the code to
be re-entered.

*some* immobilisers kicking in, and the car won't start

*some* other systems losing their marbles. ISTR that sometimes window
warning lights come on until various resets establish where 'window
closed' is..



All of which are detailed in the handbook under the heading "Changing
the battery"
--
bert