How To Unlock A Smart Car With A Dead Battery. I cant unlock the Toyota door manually. Posted on Jan 21 2015.

In the past I was lucky enough that the I simply cant lock the car. Answer 1 of 14. Whether your car battery is dead or the key fob is dead you will need to start the car by pressing the START button with the keyfob.
If you get into your Fortwo turn the key and your car doesnt start you may hear nothing or a clicking sound from the engine bay you have a dead battery and need a jump-start.
24 Mar 8 2012. Happened to me today worked like a charm. The lock in the tailgate is seized since I dont think it has ever been used. In the past I was lucky enough that the I simply cant lock the car.
