car won't lock just beeps

micro switch in the hatch lock sticking? open and close the hatch firmly.

 

Could be 12V battery. Most of us will always recommend to get it load tested to eliminate an easy source of electronic troubles. When you close all the doors does the dome light eventually go out? Check for this with the key fob at least 15 feet away from the vehicle. If not, a door sensor isn't working correctly. Or certainly the hatch switch as mentioned above. Only other thing I can think of is trying to lock the doors with the Prius still made READY, as in still on. Not turned off. But I think that is just one long steady beep.

 

any chance you have another key fob inside?
the car will not lock with the keys inside... at least mine wont.
are you sure all doors and hatch are closed tightly?

 

Also check the hatch latch itself to make sure nothing is jamming or obstructing it.

 

You didn't say how many beeps. They are pretty well covered, I think, in my wife's 2007 manual.

 

that's exactly how toyota mechanics fix things.

 

Good fix, and it didn't cost a dime. Wanted to ask about your avatar picture. That looks a whole lot like Chanute AFB in Rantoul, IL. Spent some time there twice, maybe three times.

 

did you ever check the 12v? or maybe the slamming temporarily dislodged the hatch latch. or is it lodged?
have you tried the other toyota mechanics trick, sledgehammer?

 

Lets see, I was there for weather observer training July-December 1977 and again in June-October 1982 for the weather forecaster course. I remember the washout rate for that course was close to 75%. Tough! The picture might show that shiny B-58 Hustler they had there on static display.

 

I had the same issue! I was charging a flashlight battery in the cigarette lighter and when the car turned off, this continued charging. Unplugged it and the problem went away! It was NOT the door actuator like a lot of people say on this forum.

My experience of the problem was as followed:
When I turned the car off and opened the door, the car would beep steadily as if I had clicked the power button once without pressing the brake, like it was in Accessory mode but no lights were on. Locking the doors resulted in an immediate unlock. I should have noticed something strange when the cigarette lighter was still working with the vehicle off. Unplug anything from the cigarette lighter and see if this fixes the issue before you go through Any mechanical issues