How may I unlock all four doors with a SINGLE push of the keyless entry button?!

Is there a way that I can change the keyless entry system to unlock
all four doors with the push of the button once, rather than twice on
my 2003 Accord EX?

 

Not without modifying something on the car. Every keyless entry
system I've used is like this. It's a safety feature.

 

Yes, but unless you are an electronic engineer, you will need to hire
an engineering company to modify the computer in your Honda that
controls this function. Might cost more than the car. Just push it
again and save the big bucks.

 

No.

 

Stops kids playing with it and accidental unlocking by accidental contact.
Jusr pretend you have to arm it to set it. First click listen second click
unlock. Youl'l get over it...

 

I have personally installed two after-market systems that can be
programmed to either unlock all doors on first press or unlock only
driver's door on first press. Your question is not at all as ridiculous
as some other poster make it out to be. That particular after-market
system is $40, and you don't need to be an electrical engineer to make
it work.

OK, I am done ranting now. Thanks for bearing with me.

It would not surprise me if you can turn this feature off or on on the
factory system. If you ask your dealer, he may or may not know about it.

Barring that, a fairly simple re-wire will also accomplish what you
want. The door lock control module has 3 outputs for the lock actuators:
One "lock" output common to all 4 doors, one "unlock" output for the
driver's door and one "unlock" output common to the remaining three
doors. At the module, you can snip the wire for "unlock remaining doors"
and connect it together with the "unlock driver's door" output. It will
cost you a $0.50 splice tap and an hour of your time.