acc mode?

senectus · 03-02-2005, 04:31 PM

First the back story..:P
Many many moons ago when i owned a Valiant charger (large heavy inline 6 ) I was told that you should not leave a car in ACC mode for too long, because you run the risk of the coils overheating and even melting..

Now sometimes I can wait for up to an hour in the car park while i wait for my partner to finish work.
While I'm waiting I like to listen to the radio.. and to do that I need to put the Prius in ACC mode.
Is this old wives tale still relevant?
Or can I sit in the car for many an hour or more in ACC mode while i wait?
Thanks.

rick57 · 03-02-2005, 04:36 PM

I did a test in another post,about leaving the Prius in the ACC postion(green light on). I had a new one last night I put in this state with the drivers door open and the radio on. All dome lights were off. After approximately 1 hour the system shut down. I believe it says that in your owners manual also.So if your lunch is for 1 hour you should be ok. If longer,maybe hum to the music in your head when it shuts down

senectus · 03-02-2005, 04:41 PM

Thanks Rick57 :-)

So it will shut it off on it's own..? hmmm.. I wonder if thats to stop it from draining the battery or another reason..

KTPhil · 03-02-2005, 05:27 PM

Most conventional ignition (coil/points) cars added a ballast resistor for this reason. Not sure if the Valiant/Dart slant six had it. No modern electronic ignition car has the problem.

xevious · 03-02-2005, 07:13 PM

The only thing that you should worry about is draining the diminuative 12v battery.

rick57 · 03-02-2005, 09:53 PM

<div class='quotetop'>QUOTE(senectus\";p=\"68800)</div>

Quote:

Thanks Rick57 :-)

So it will shut it off on it's own..? hmmm.. I wonder if thats to stop it from draining the battery or another reason..[/b]

<div class='quotetop'>QUOTE(xevious\";p=\"68859)</div>

Quote:

The only thing that you should worry about is draining the diminuative 12v battery.
[/b]

Yes I would agree it probably is to save the 12 volt battery. But I would think it could last longer then 1 hour. Maybe Toyota picked 1 hour just in case you had left it on in the garage

**Tideland Prius** · 03-02-2005, 10:25 PM

Well the radio won't suck up much juice unless you've blasted it to Vol 62 (or is 63?) and added a thumping wooder :P. My scenerio was the rear dome light on, all doors except hatch locked and the radio on in ACC mode. So I guess regardless of what's on, it'll shut off after an hour

rick57 · 03-02-2005, 10:41 PM

<div class='quotetop'>QUOTE(Tideland Prius\";p=\"68918)</div>

Quote:

Well the radio won't suck up much juice unless you've blasted it to Vol 62 (or is 63?) and added a thumping wooder :P. My scenerio was the rear dome light on, all doors except hatch locked and the radio on in ACC mode. So I guess regardless of what's on, it'll shut off after an hour[/b]

With your test also, I would believe that maybe it is on some kind of timer,which starts when you put it in ACC mode. This seems to make sense

**Tideland Prius** · 03-03-2005, 12:50 AM

mmhmm... so judging from mine and yours, can we conclude that it's approximately one hour (until someone can prove otherwise)?

rick57 · 03-03-2005, 08:27 AM

<div class='quotetop'>QUOTE(Tideland Prius\";p=\"68969)</div>

Quote:

mmhmm... so judging from mine and yours, can we conclude that it's approximately one hour (until someone can prove otherwise)?[/b]

Yes I would say so. Unless someone proves us wrong

03-02-2005, 04:31 PM	#1
senectus Join Date: Feb 2005 Location: Perth, Western Australia Posts: 111 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	acc mode? First the back story..:P Many many moons ago when i owned a Valiant charger (large heavy inline 6 ) I was told that you should not leave a car in ACC mode for too long, because you run the risk of the coils overheating and even melting.. Now sometimes I can wait for up to an hour in the car park while i wait for my partner to finish work. While I'm waiting I like to listen to the radio.. and to do that I need to put the Prius in ACC mode. Is this old wives tale still relevant? Or can I sit in the car for many an hour or more in ACC mode while i wait? Thanks.

03-02-2005, 04:36 PM	#2
rick57 Senior Member Join Date: Feb 2005 Location: Circleville, Ohio Posts: 565 My Car: Other Non-Hybrid Package: N/A Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 1	Re: acc mode? I did a test in another post,about leaving the Prius in the ACC postion(green light on). I had a new one last night I put in this state with the drivers door open and the radio on. All dome lights were off. After approximately 1 hour the system shut down. I believe it says that in your owners manual also.So if your lunch is for 1 hour you should be ok. If longer,maybe hum to the music in your head when it shuts down

03-02-2005, 04:41 PM	#3
senectus Join Date: Feb 2005 Location: Perth, Western Australia Posts: 111 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Re: acc mode? Thanks Rick57 :-) So it will shut it off on it's own..? hmmm.. I wonder if thats to stop it from draining the battery or another reason..

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03-02-2005, 05:27 PM	#4
KTPhil Senior Member Join Date: Jan 2005 Posts: 1,213 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Most conventional ignition (coil/points) cars added a ballast resistor for this reason. Not sure if the Valiant/Dart slant six had it. No modern electronic ignition car has the problem.

03-02-2005, 07:13 PM	#5
xevious Join Date: Jan 2004 Location: Oregon Posts: 187 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	The only thing that you should worry about is draining the diminuative 12v battery.

03-02-2005, 10:25 PM	#7
Tideland Prius Super Moderator Join Date: Oct 2004 Location: Canada Posts: 13,920 My Car: 2005 Prius Package: B Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 11	Well the radio won't suck up much juice unless you've blasted it to Vol 62 (or is 63?) and added a thumping wooder :P. My scenerio was the rear dome light on, all doors except hatch locked and the radio on in ACC mode. So I guess regardless of what's on, it'll shut off after an hour

03-03-2005, 12:50 AM	#9
Tideland Prius Super Moderator Join Date: Oct 2004 Location: Canada Posts: 13,920 My Car: 2005 Prius Package: B Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 11	mmhmm... so judging from mine and yours, can we conclude that it's approximately one hour (until someone can prove otherwise)?