2008 hundai sonata doors locked , battery dead , how can i get into car

well kind sir you should charge the battery and see what happens

COULD BE BAD GROUND.

Remove the screws holding it to the roof structure

If the battery is more than 3 years old, replace it

There is no "secret" way. You will need to try and have a locksmith open the door for you.

a bad door latch switch. The hard part is diagnosing which door.

Try pushing on both sides of the fuel door, sometimes they have a hidden lever.

Dear,

this car is equipped with the electronic fuel pump.............
please check the water level of your car battery and get it recharged from the workshop and also check the life cycles of the battery....if the battery is not ok...........then please get it replaced.


hope this solves the problem

thanx

the remote programming may have been erased-with the doors locking automatically it is a feature that should be able to be changed-you will have to check the owners manual on how to change that feature
as far as the remote-you will have to contact a hyundai dealer about reprogramming the remote-it may also just need a battery

take all screws of ,,then take screws of actuator and cables then remove it ,,put in new one put everything back together