2012 Prius Won't Start Until ... - Toyota Nation Forum : Toyota Car and Truck Forums
Prius 3rd Gen - Hybrid (2010-2015) Toyota Prius Hybrid discussion for years 2010-2015.

 1Likes
  • 1 Post By kamesama980
 
LinkBack Thread Tools Display Modes
post #1 of 3 Old 03-06-2019, 06:35 PM Thread Starter
New TN User
 
Join Date: Mar 2019
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
3rd Generation 2012 Prius Won't Start Until ...

I've looked at other forum posts with similar problem and have not found any discussion of my problem. My Prius has 107,000 plus miles and I haven't had any significant problems with it until now. Here's my problem. Yesterday afternoon I was at a local Walmart and had no problems finding a parking space. When I got out of the car and tried to lock it, I didn't get the two (2) beeps that I usually get when I lock the car with my key fob. This happened once before about a week ago. I didn't think anything about it either time but it may be related to the serious problem I had after doing my shopping. I went in and did my shopping coming back out about a half hour later. When I got into the car, there were no lights on the dashboard. There's usually a few red security lights on the right hand side of the dashboard when I get into the car. This time nothing. When I put my foot on the brake, the green light came on my starter button. When I pressed the starter button, however, nothing happened. I called AAA to get a tow to the nearest service center. After finding out I'd about a two (2) hour wait, I decided to go back inside of the Walmart. When I opened the driver's side door, the dash lights came on and I was able to start the car. I was able to drive it home and waited until today to take it in for service. When I tried to start it this morning, a similar thing happened (i.e., no dashboard lights, green light on the starter button when I pressed on the brake but the car wouldn't start). This time, opening and closing the driver's side door did nothing. I tried opening and closing all of the doors . This time, it came to life when I closed the back hatch. I took it to the local Toyota dealership to get it fixed, but they found nothing wrong. Everything checked out on the electrical system, including the batteries and there were no codes decipherable from car's computer system that might explain the problem I have. They did, however, complete the recall service (J0V - 2012/2014 Model Year Prius V Hybrid System Software Update). In looking up this safety recall, I found that it didn't specifically address my problem. As a result, I'm not very confident that the actual problem has been found / resolved and I'm reticent to drive it any significant distance from home as it might not start next time no matter how many doors I open and close. From the symptoms, it appears that the starter system is looking for some permissive involving the car doors before it will enable the starting system. Anyone have any ideas what is causing this and what I can do about it?


It happened again this afternoon. Apparently, the dealer didn't resolve the problem. This time, all I had to do was push down on the hatchback and the car came to life. There must be some kind of interlock that prevents me from stating the car if the back hatch does not show up as closed. Of course, it was closed but I had to push down on it to get the car to let me start it. Of course I'll have the battery checked as suggested but does this new information give anyone any other ideas?

Last edited by buckibooster; 03-07-2019 at 05:29 PM. Reason: It happened again.
buckibooster is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old 03-07-2019, 05:16 PM
Moderator
 
ukrkoz's Avatar
 
Join Date: Jun 2010
Location: Pac NW
Posts: 5,168
Mentioned: 19 Post(s)
Tagged: 1 Thread(s)
Quoted: 802 Post(s)
Thanks: 39
Thanked 436 Times in 383 Posts
Lifetime Supreme Member
Garage
iTrader Score: 0 reviews
For what it is, it sounds like bad 12V battery to me...

Reason you had no lights and then they came back might be simple - 12V is charged off hybrid battery. It might just have charged it while you were doing what you were doing.
Yes, I read dealer checked batteries. It simply sounds like 12V problem. Maybe as simple as dirty cable terminals...poor ground on one of them. They checked battery but didn't check that...



ukrkoz is offline  
post #3 of 3 Old 05-15-2019, 09:05 AM
Cressida nut
 
kamesama980's Avatar
 
Join Date: Jan 2006
Location: Columbus, IN
Posts: 4,568
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 70 Post(s)
Thanks: 2
Thanked 307 Times in 291 Posts
Garage
iTrader Score: 0 reviews
Sounds like a bad connection to the 12v battery. loose cable or broken wires.
connection bad = no 12v to turn on the hv
close the hatch, bump the car, wiggle the connectors, they make contact...
connection good = runs fine

One nice thing about the dual voltage system is when jumping it, you only need enough of a jump to turn on the 12v computers to connect the hv system. all the heavy loads, including charging the 12v battery, come from the hv system and the hv system can stay fully charged even if the 12v is dead. found that out the hard way a few months ago.
ukrkoz likes this.

-Russell
"You don't get to judge me for how I fix what you break"
'15 Toyota Prius
'05 Subaru Baja Turbo
'95 Toyota Previa
'70 VW Bug
kamesama980 is offline  
Sponsored Links
Advertisement
 
Reply

  Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Hybrid Forum > Prius Forum > Prius 3rd Gen - Hybrid (2010-2015)

Bookmarks

Tags
electrical , prius v , starter

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome