Brake, ABS,VSC, (!) warning lights on - Toyota Prius Forum : Prius Online Toyota Forums
User Tag List

 
LinkBack Thread Tools
post #1 of 8 (permalink) Old 05-19-2013, 12:28 PM Thread Starter
Junior Member
 
Join Date: May 2013
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Default Brake, ABS,VSC, (!) warning lights on

All 4 warning lights came on yesterday when started car 2007 Prius with 125K miles. Brakes working but grabbing with added pedal pressure. Need help on how to diagnose.
emt3 is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 05-19-2013, 05:49 PM
Member
 
Join Date: Apr 2005
Location: Western WA
Posts: 97
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Default

Did the lights turn off, and did the problem happen again the next time you turned on you car? Might be a 12v battery problem. In any case, you should get it checked out as that is a safety issue with the brakes.
fdret44 is offline  
post #3 of 8 (permalink) Old 05-20-2013, 09:38 AM
Senior Member
 
firepa63's Avatar
 
Join Date: Jun 2004
Posts: 2,243
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Default

Get the codes and post them here to help diagnose the problem. If those warning lights stay on DO NOT DRIVE THE CAR!
firepa63 is offline  
 
post #4 of 8 (permalink) Old 05-30-2013, 04:40 AM
Senior Member
 
Join Date: Mar 2003
Location: Phoenix, AZ
Posts: 883
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Default

Lots of unusual problems can pop up when the 12-volt battery goes bad and the voltage drops to 10.5-11 volts or lower. Before spending time and money troubleshooting these problems, if you still have the original 12-volt battery, you might want to check it to verify that the battery is OK. If the voltage is low, most auto parts stores will charge and load test it for free (because they want to sell you a new battery).

I have purchased a couple of batteries from eLearnAid:

http://www.elearnaid.com/priusparts.html

Bernie Littman is very helpful, and his prices are competitive for hard to find Optima batteries.

Otherwise, most auto parts stores will also read the fail codes for free; and those codes will help others on this site to provide more accurate troubleshooting advice.

Good luck!
Phoenix is offline  
post #5 of 8 (permalink) Old 07-31-2013, 08:05 PM
Junior Member
 
Join Date: Jul 2013
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Default

1) R&R 12V battery
2) Check if there is any damaged harnesses.
We have pack rats (yes rats) in Tucson that love to chew on cable insulation. I had an Honda Element that had to be towed and a $300 repair due to this.

If not fixed then get the dealer to test the hybrid battery.
TucsonCamper is offline  
post #6 of 8 (permalink) Old 09-19-2016, 09:26 PM
Junior Member
 
Join Date: Sep 2016
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Unhappy Brake, (!), ABS, VSC Lights Warning Lights Popped On

Almost home when 4 warning lights (Brake, (!), ABS, VSC) came on Friday after driving about 45 minutes from work (around 13-15 miles). 2006 Prius with 133K miles. Brakes working. Found this forum and took car to garage next day. 12 volt battery replaced (garage owner said it was a Toyota brand, could have been the original). No problems driving until today, same symptoms, lights came on again while driving home from work, this time farther from home. If it's not the 12v battery, what else could it be? Will be taking it back to the garage first thing in the morning.
cptjames is offline  
post #7 of 8 (permalink) Old 09-23-2016, 11:52 PM
Junior Member
 
Join Date: Sep 2016
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Default

This could be your Brake Actuator going out. Take it into the deal IMMEDIATELY. My brakes were making a BARKING noise, and I could hear a motor or something cycling on and off every 5 seconds or so. Then all those lights went on!

Turns out that in my 06 that part is under warranty until Dec 31, 2017!! Yeah you read that right, NEXT December. It's a known bad part.

When they look it up, have them look up the ORIGINAL warranty, not the secondary warranty. It's a $2300 repair, you don't want to have to fork that over if you don't need to.

If your actuator goes out, you will lose your brakes (it could happen while you're driving).
Mike Colburn is offline  
post #8 of 8 (permalink) Old 05-22-2017, 01:26 PM
bmt
Junior Member
 
Join Date: May 2017
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Default Thanks

Quote:
Originally Posted by Mike Colburn View Post
This could be your Brake Actuator going out. Take it into the deal IMMEDIATELY. My brakes were making a BARKING noise, and I could hear a motor or something cycling on and off every 5 seconds or so. Then all those lights went on!

Turns out that in my 06 that part is under warranty until Dec 31, 2017!! Yeah you read that right, NEXT December. It's a known bad part.

When they look it up, have them look up the ORIGINAL warranty, not the secondary warranty. It's a $2300 repair, you don't want to have to fork that over if you don't need to.

If your actuator goes out, you will lose your brakes (it could happen while you're driving).
I just want to say thanks to the forum for info about the actuary. Three weeks after paying cash for a 12 year old Prius (2005) my entire dash lit up like a Christmas tree. I was able to tell the dealership that I was under an extended warranty for the break actuary. They made the repair and gave me a rental for 1 week all at no charge. Unfortunately, I'm back to the forums because all my lights have gone off again. I'm hoping it is a bad replacement part...time will tell!
bmt is offline  
Reply

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



  Similar Threads
Thread Thread Starter Forum Replies Last Post
Parking brake, abs and vsc lights on with squeal 2007bns Toyota Prius Technical - Q & A 7 03-12-2016 06:43 AM
VSC, ABS & Brake Orange warning lights continually on Gabohan Toyota Prius Technical - Q & A 0 08-01-2010 09:02 AM
ABS VSC ! and BRAKE Light on fabiendass Toyota Prius Technical - Q & A 2 02-17-2009 01:17 PM
ABS and brake warning lights on Johnny_Fang Toyota Prius Technical - Q & A 4 09-10-2008 06:42 PM
VSC ABS and ! lights plus red (!) a_palych1 Toyota Prius Technical - Q & A 7 06-05-2008 12:21 PM

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