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Toyota Prius Engine Problems

54 messages,  Last post on Nov 04, 2009 at 11:24 PM

You are in the Toyota Prius Maintenance & Repair Forum. Your Host is pf_flyer

What is this discussion about? Toyota Prius, Engine, Fuel System


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#4 of 54
It happened to me once by texvegas
Jun 19, 2006 (8:22 am)
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While cleaning the inside windshield I apparently hit the shift stick and when I tried to start the car, I got the same message. I turned off the power, got out of the car, got back in and it started as always. I think you get this message if you try to start the car in neutral.
#5 of 54
patience is required by john1701a
Jun 19, 2006 (8:27 am)
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Pressing the POWER button before the brake is fully depressed will cause a lock up where only neutral is available... hence seeing that message.
 
Simply waiting until your foot has finished moving will prevent the problem.
 
That little bit of patience makes a huge difference, and it is so subtle that most people don't even realize they have jumped the gun... until their awareness is heightened by having done that.
 
JOHN
#6 of 54
and another thing... by acj
Jun 19, 2006 (8:33 am)
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forgot to mention that she phoned Toyota to talk about this problem and they told her that the car was unsafe to drive until this was fixed? Based on what you guys have said so far it doesn't sound unsafe to me......
#7 of 54
starting by evanr1
Oct 10, 2006 (5:05 pm)
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Prius has locked up.
Will not start.
Dash has all items lights on.
Will not return keyless entry key.
#8 of 54
Re: starting [evanr1] by gagrice
Oct 10, 2006 (8:22 pm)
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Replying to: evanr1 (Oct 10, 2006 5:05 pm)

Welcome to the forum. What year is your Prius? Has this happened before?
#9 of 54
Re: starting [gagrice] by evanr1
Oct 11, 2006 (8:50 am)
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Replying to: gagrice (Oct 10, 2006 8:22 pm)

Prius is a 2005.
Owned for 10 months.
First time this has hapened.
Main batries are GOOD, the starter batt. is dead.
#10 of 54
Re: starting [evanr1] by devsienna
Oct 12, 2006 (4:36 pm)
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Replying to: evanr1 (Oct 11, 2006 8:50 am)

Evanr1, pardon the questions, but how exactly did the Prius initially lock up? Also, how is that the "starter" battery is known to be dead but the main battery is known to be good? Generally, if the small 12-volt "starter" battery is dead, then you should get no dash lights and no interior lights. The 12-volt battery is used to "bootup" the computers, which in turn connects the high-voltage main battery to the car (it is isolated via relays when the car is off).
 
It sounds like you ran the 12-volt battery down by accident, either by leaving a door open or an interior light. You should be able to "jump-start" the car to get it working again. The instructions on how to do so are in the manual. You do not have to crawl back into the back of the car to get at the actual 12-volt battery. There is a 12-volt positive terminal inside the main fuse box of the engine compartment specifically for this purpose. Positive goes to this post, negative goes to any unpainted engine part. The manual should indicate a prefered negative connection point to use for jumpstarting. After you make the connections, you should be able to hit the Start button to reboot the computers and hopefully get things working again.
 
I'm curious as to how the keyless key managed to stay stuck in it's slot, and how the dash lights stayed on while the rest of the car appeared to be dead.
#11 of 54
Similar Problem ... Gas Engine won't start by h_2b_a
Jan 29, 2007 (8:56 pm)
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My girlfriend has a similar problem with her 2003 Toyota Prius. We're in Missouri and during winter and especially cold weather (usually when it is below freezing) the electric motor appears to be turning on, but the gas engine will not turn over. She's taken it to a dealer a few times, but they keep telling her that once they reset the computer the problem is fixed. However, once the temperature begins to drop again, the same thing happens.
 
I was wondering if anyone is familar with any sensor or starter/battery problems that would prohibit the gas motor from turning over in cold weather.
#12 of 54
Stalling problems at startup from complete stop by priusrik
Jan 06, 2007 (6:58 am)
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#13 of 54
Stalling problems at startup from complete stop by priusrik
Dec 29, 2006 (8:25 pm)
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I have a Toyota Prius 2005 (which I love) - with 19,000 miles - which has had a "stalling" problem at take off - on three occasions. It happens like this:
I'm stopped at a light. It turns green and I try to take off - but the Prius won't go faster than about 10 miles an hour - and a Yellow "car shaped" icon lit up (just below the temperature light). The last time I went about 1/2 block at 10 miles/hour - when it suddenly took off and accelerated normally - and the yellow light went off. It handled normally until I got home. We then called the Toyota dealer who said to bring it in. We didn't drive the vehicle until the time we took it in. The dealer service dept didn't find any problems - no "obd II codes" set in. They said that it was probably just the "traction control" kicking in (supposedly that was what the yellow "car" icon meant). They surmised that we had hit a patch of ice. I questioned the service manager for several minutes - telling him that there was no ice - I hadn't heard the brakes pulsing - and it went on for about 1 minute (an awfully long patch of ice). There were no codes retrievable.
 
So - any ideas out there? I doubt that it was ice (we do live in Minnesota - but haven't seen that much ice). Was it a software glitch? (I've been a software designer/developer for 35 years and have caused more than my share of bugs). I have read in some of these forums about having to "reboot" - power cycle the vehicle to clear up similar problems. However, - it has cleared up spontaneously for me. Thanks in advance....

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