My 2006 Prius HV battery recently died after 144,000 miles. I got a new battery. To my surprise my mileage has dropped from 45 to 37 mpg. I contacted the dealer repair shop and they told me that the computer system needs to "re-learn" how to optimize the synchronization between gas engine and electric motor. The process can take 2 to 5 thousand miles.
View 11 RepliesI tried to turn on my car this morning, but the "Ready" sign didn't go on. The whole display is black. "Check Engine" sign blinked briefly. Battery display shows the battery is "green". Everything else works - cd/radio/bluetooth, etc. As I tried to start it, the screen showed that the engine briefly charged the Prius battery, then it was all quite. I tried to wait and restart a few times, but still the display was all black and no "ready" sign. I WAS able to still move the car, but I didn't chance to drive it out of the garage. I just had it serviced (oil/fluid change). Small battery was replaced in July.
View 19 RepliesI have a 2004 Prius, the Red triangle came on intermittently and went off so I changed the 12V battery last night, after changing it the red warning light went off and everything seemed okay. Today while driving, the warning light came back on. I checked the battery voltage via diagnostic mode on the cars computer and the specs are what they should be. I noticed the following error codes in the computer:
01-D5, Sub-code: 190-30-8
01-DC, Sub-code: 190-B7-8
01-DC, Sub-code: 1C6-4D-F
Not sure if these are what is causing the problem.
I've been having an issue with my 2008 for the last several months and was wondering if this is a common problem, or unique to my vehicle.
View 17 RepliesJust returned from a mechanic who tested my 2004 Prius with 134,000. It indicated there is a problem with the main battery. I was trying to avoid the dealer but it looks like it is a must. He suggested I ask the dealer to remove the battery and bring it to a place in Clearwater Florida to have them refurbish it. If I try to trade in this car I won't get anything for it with the engine light on, right? What should I do? I replaced the 12V two months ago.
View 8 RepliesIf Prius has to constantly spin the ICE when over 42 mph, even when only running on battery power, it must waste a lot of energy overcoming ICE compression all the time. Or is there some kind of system to reduce compression in this situation – just curious....
View 10 RepliesMy inverter over heated. Looked at reservoir for motion of water saw none. Took car to toyota for pump recall. When I got it back I heard the pump. Never heard it before. I don't think it ever worked. & water is flowing in reservor now. Now I am thinking about the HV bat. fan because I never never ever heard it working. When does it come on and how could I test it?
View 10 RepliesI have got Prius 2004. I have got a problem. With MFD. It's showing the screen where it should show that the battery is charging but it's not showing the charging at all. Car is running fine and starts as normal. I have changed the 12V battery but it's still not showing the charging.
View 6 RepliesYesterday morning, my sweetie went out to go to work, and the Prius wouldn't start, (or anything else). Jump starting remedied that, but I decided that the 12v battery was probably toast ( I had problems with it last winter). I bought a new battery, and then endeavored to put it in. The process was a pain (particularly since I was doing it outside in blowing snow), but I finally got the battery all exposed, only to discover that the battery was frozen into 1.5" of ice (of some sort). Three hours of hair dryer later, I had extracted the battery and all the ice, and installed the new battery. What a pain.
View 1 Replies2005 Prius was dead this morning. I had left a light on a couple of days ago and had to jump it. It started right up. I only drove short distances in the next couple of days, so I thought battery hadn't charged fully. But when I tried to jump it this am it was to no avail. Took battery out and had it charged at parts store, reinstalled and still nothing..
I pushed start button twice without foot on brake;it just flashed some symbol quickly, nothing more.
Last 2 weeks my 2006 HV battery seems to be showing the SOC very erratically. Going up and down fairly rapidly, sometimes staying at 4 bars for a good 20 minute drive on the highway. This weekend after driving 7 hours in 110 degree heat, the battery fan came on. It was blowing on high for about 15 minutes and then it quieted down.
I believe these are signs of it's potential upcoming failure. The car has only 127k miles so I'm still in warranty. So fingers crossed that I'll be close to home when I see all the warning lights pop up.
So it looks like the battery in my Key Fob has died. I've had some trouble replacing it, so for the past week or so I've been forced to use the physical key every single time. It's getting pretty annoying now, so I've decided to figure this out once and for all. From what I gather, the replacement should be battery number 2032.
View 4 RepliesSo I met my wife after work. I was killing some time with my son. We drove across the street, then to a neighboring shopping center. I changed the display to see the more accurate instant MPG and noticed my battery was at 2 bars. This is the first time that's happened, that I'm aware of. During normal operation, it stays at 2 bars above the halfway mark, or above.
View 6 RepliesP0138 was the code. Seems to much of a coincidence that this comes on an hour after a new battery is put in..
View 7 RepliesJust bought a 2006 Prius, ironically only has 31,000 km on it.
Recently, mostly today, i noticed the battery has been draining quite fast. I was at 2 bars from full(or 3? whatever is pre "green") and probably 5-10min later i was 2 bars and the gas engine was running. Whatever seemed odd, maybe the traffic was a little slower today.
However i started driving 80kph and it took over 5 minutes for the car , without battery running, to bump from 5 bars up to 6. The electric motor was literally not driving the whole time, it was strictly gas the whole 5 min.
I was also considering taking this car for an inspection at the dealer just to ensure everything is okay before winter hits.
So, I noticed after the week long heatwave (using Priidash and the Prius display) that during normal driving (under 65mph and slow accel) that my prius is NOT keeping the battery at 60% SOC....It is staying in the low 50's or as low as 39.5%....If I go above 70mph, I see the battery being drained and not recharged at all....I reset the battery (twice) the first time it made no difference but the second time the car turned on and said I had 60% SOC when in reality before the ECU reset I was at 49.5%. I know my battery is good because I have stress tested it many times. Its in great shape. The only thing I've done differently these past few weeks is I left the car in Park with the AC on 75 auto for about 5hrs on 4 different days....Its a 2004 Prius.
View 7 RepliesRecently we went on trip requiring a 3 hour ferry ride. Decided to keep it in READY to listen to the stereo and maintain a minimal level of heat. I noticed the engine kicking on and no arrows from or to anywhere. The HV battery gauge was mostly down to 2-3 bars but still no arrows. There were times that it kicked on and the arrows showed the batteries being charged too. Was the engine kicking on without charging just to maintain the engine coolant temp to provide heat for the cabin, or what?
View 4 RepliesI started having a problem last week when my 2007 Prius was setting for two days while I was using my pickup truck. Found the 12 volt battery dead so I disconnected it and tested it with a battery load tester. And it showed it was bad. Well Ok, that figures, since it was an OEM battery and ~6-7 years old.
I have another 2007 Prius here for body repairs so I took the aftermarket (newer) battery out of it and topped the charge off in it. The battery load test indicated it was still a serviceable battery.
Put it in the car and cleared the red triangle, etc.. Everything was fine.
Since I was still going to be short one battery, I contacted Battery Systems, my shops battery dealer and ask them to drop off a new Yellow Top Optima that fits the Prius (FYI my shop price is $159.96). I would be a couple days til their deliver truck would be here and again I left the car sit for a couple days and drove my truck. On the day of the delivery, I had an appointment and drove the Prius, about 15 miles. No problem. Left it at in a street parking space for about 2 hours. Came out and all systems were dead. Nothing. Dome light was the only indication that the battery was so low that it was very dim. Head light were off and I hadn't used them while driving.
I called for road service and got a jump start and the systems came up and I was able to clear the Read Triangle when I got home by turning the car off and back on again.
The new Yellow Top Optima arrived shortly there after and I installed it. Drove the car for 6 days and this morning everything was fine when I drove to church and left it, head lites off (never had used them), came out 2 hours later and when I started the car, I got the Red Triangle and Ready but continued home. I turn it off and on again but this time I got no Ready but the Triangle and the whole sting of check light. Could only get it from park into neutral. Nothing else. Wouldn't clear.
Using my Torque Pro program, tried to read the ECU and it indicate no codes stored, Several tries, no codes or history. Called friend who has reader that will read the CAN Bus and he managed to find an odd P0503 code having to do with a speed sensor. Cleared that and the Triangle went out.
In the end I went and checked the voltage of the new battery and it was only 12.01 volts. I put the load tester on it and the condition is fine. Just the charge voltage is low.
I have a fairly low mileage 2005 Prius I purchased private sale about 6 months ago... so still getting used to a few things. The previous owners had to replace the hybrid battery at about 45,000 mi. From what I understand, that's pretty unheard of. The reason that was given that the battery died was that the Prius was in their garage un-driven for a couple weeks while they were on vacation and the car had been pinging the key fob (close by in the house) the whole time. The associated details were a little fuzzy, but the owner has a note written in the manual about a certain combo of buttons to hit if you'll be away from the car for awhile, but the fob will still be physically close to the car. This combo turns off the hybrid battery (??)
Ok, so my question... How common is this? How long is 'long' that I should be concerned about leaving the car? Is it really best practice to keep your keep fob more than so-many feet from the car to reduce the chance of this happening?
I have a 2004 prius that had a HV batyery problem. HV battery was rebuilt. After that car started ran but after shut down it will not start. It will only show red triangle, abs, vcs, yellow tire. Basically all yellow lights on dash board except check engine. Also on the MFD it shows the red car with exclamation symbol. I scanned it but shows no DTC codes.
View 16 RepliesI have a 2008 Prius and have been thinking I should be changing the auxilliary battery soon as a preventative measure. I've changed plenty of batteries in other vehicles before but I was wondering if there's anything that's much different in these cars that I should be aware of?
View 9 Replies