I have 2004 prius, 100,400 miles. No problems ever and all of a sudden, driving as usual, vsc, brake, !, and alarm buzzer on the entire time car is running or door opens. Brake seems harder to stop now. Right rear wheel is grinding when brakes are applied. jerks a bit at slow stops.
View 19 RepliesI have found a new issue with my trunk. When I hit the release button the latch unlocks but when I set my alarm and then attempt to open the trunk it is still unlocked even after the alarm has been set!! The worst part is the alarm doesn't ever go off after I open it..
View 1 RepliesHave started seeing an issue on my 2012 about few months already and the dealer could not even diagnose it because it is intermittent.
Sometimes when I arm the alarm, I can hear the actuators/solenoids cycle, but there is no single beep and the driver's door invariably remains unlocked. Repeated press of the arm button on the fob would not change, i.e. vehicle remains unarmed and driver's door remains unlocked. All the other doors are unaffected.
I can cycle through by pressing unlock once or twice, then the next relocking press would work. This is worrisome if I didn't pay attention to the beep and thought the vehicle is locked while in fact it was not, this could also happen when the vehicle is at the dealership as the porter would think pressing the button would have locked the vehicle.
I just purchased a 2006 Prius with 89k miles and it has a problem with the drive train and randomly losing all power on the freeway causing me to make emergency shoulder stops to reset the car.
The symptoms are as follows:
-red triangle on, orange circle with ! on, check engine light on, hybrid monitor green car symbol is red with ! in it
-traction battery fan is always on when car is powered
-the car has never driven under electric power
-shifting problems, sluggish acceleration and all power loss on freeway
-hybrid monitor system lies and shows the battery full one second and empty the next.
Weird problems with my 2006 prius. Car has 54,000 miles.
4 times now over the last year, during abnormal braking conditions (someone swerves over at me on highway and I have to break and swerve suddenly to avoid), I get multiple warning lights, and the warning buzzer. Yesterday this happened, and I got the red triangle, the red brake light, the abs light, and two new lights on the LCD display I've never seen before. I pulled over and began to slow down. The brakes felt stiff, and the vehicle started to loose acceleration power. LCD started resetting itself. I stopped the car, turned it off, and turned it back on to find everything normal. I then drove 200+ miles to my destination without incident.
This is the worst case of this problem yet. My 12v battery was replaced last year after the first of these issues, with similar symptoms, but no loss of acceleration. The tech said the only code in the system was a voltage spike, and thus thought it needed a new battery. In every other case of the problem, I turn the car off and turn it back on, and it's fine. I'm about to drive 2000 miles next week, and want to avoid further issues...
I just bought a prius 2007.
I have a unique situation:
•No passenger: light is "Airbag" - No red flashing seat belt sign
•Passenger with seat belt: light is "Airbag" - No red flashing seat belt sign
•Passenger with no seat belt: light is "Airbag" - No red flashing seat belt sign
I have no other warning lights on the dash.
I tried to check to check if there are any loose wires/connectors under the passenger seat but everthing looks ok.
Is there a blown fuse?
When I get near the driver's door on my 2008 Prius in attempt to unlock the door, nothing happens. However, when I get near the passenger door or the rear hatch, they will both open but the car chirps 5 times. The driver's door remains locked. It's not the battery in the key FOB, because if it was, no doors would open unless I remove the key from the FOB and physically open the door the "traditional" way.
View 19 RepliesMy Prius alarm keeps going off. Only way to turn off is to put fob in car and start. Is there a fuse I can pull or a wire I can cut? I don't have the $ to get the alarm fixed.
View 3 RepliesLast night my alarm (honnking horn, lights flashing) went off when my 07 Prius was sitting in the garage with the garage door closed. The only way to stop the alarm was to start the car and leave it running.
At 4:00 this morning it went off again. The only thing I can find amiss is that the battery icon on the main screen registered very low (two purple bars).
I have an issue, and I don't know if it's kids, animals, or the car itself. Last night it happened at 3am, tonight I'm sitting on the couch at 12.30am and it just went off again....
I don't see anyone out there around the car, not sure I saw anything last night either. Is there a cause for this? I just replaced my 12v battery in March, have a dead FOB smart key in a fire box (it's up on top of everything in the box). My current key was lying flat on the bench, nothing on top of it.
I have a 2004 Prius with 191K miles. When purchased in November of 2008 the 12V battery was replaced (mileage at the time was 70K). Over the last 2 weeks my alarm has been going off daytime, nightime with no regularity.
I have replaced the battery in the FOB (I only have one) and did this yesterday. Last night the alarm went off 4 times between 11pm and 1am until I disconnected the 12V battery.
Just woken up for the 8th time to the sound of my Prius alarm system sounding. It's an EU prius with the default alarm in it and every time it goes in for a service I tell them about the problem. They tell me they have lowered the activation threshold. I never notice any improvement.
A few questions
1. Is there any adjustable 'activation threshold' on the prius alarm system or are they just fobbing me off?
2. I have pro-tem half solved the problem by removing the fuse that leads to the horn. However a second siren still sounds despite the horn not souding. Where is this siren speaker located as I intend to disconnect that too.
A few observations.
1. It is almost impossible to get the alarm to go off deliberty, such as by waving hands around inside the veh, trying door handles, rocking the veh, hitting the glass, etc. For that reason, I am not sure I believe therefore that it is an intermittent sensor issue as I have "banged every door" so-to-speak.
2. I have checked the battery level and while all the readings are a bit on the low side, ultimately all the results are within the recommended thresholds as defined elsewehre on this site. With that said the car is 4 years old, could the battery be malfunctioning in other ways?
3. Pressing the button under the steering column does not affect whether the alarm activates or not.
How do I disable the backup alarm on the Generation II Prius?
View 2 RepliesMy Prius alarm goes off with no reason day and night. I did check everything like door and hatch back, they are properly closed and nothing could have caused the alarm to go off. I brought my car for checking but what the mechanic can do is just set the horn off, they couldn't find the cause.
View 12 RepliesMy 2005 Prius is 6 and a half years old and I have encountered a problem with an outside alarm that is one beep about 2 seconds long. I have checked my manual and I have found two possibilities, but, they don't seem to apply. Last week was the first time I had to go in and reset my maintenance needed reminder because my service station forgot to reset it after the last oil change. I am afraid in the severel attempts to do this I might have reset something else as well!
The outside 2 second beep occurs when the car is in my garage and the car is NOT locked. It also only occurs if I am outside of the car and have the key fob with me. It happens with either key fob near the car. If I lock the car I don't have a problem. It is as if everytime I come near the car with my key fob that it is reminding me that the car is unlocked.
I have a 2006 with 155k miles. I took it into the dealer for a mini service this week. Drove home after the service was complete, then drove to work yesterday. On the way home an alarm sounded and the red triangle light with !, the break system light (O) with !, the VSC light and the engine CHECK light came on.
A friend used his scanner to read the error code for me and it reported a "p0a80" code. What does this code mean? Replace the hybrid battery?
My 2007 Prius MFD is black 98% of the time. Every once in a while the screen will come on and function properly for a short period of time then go out again. It appears to be a bad connection.
View 8 RepliesI'm a new Prius owner (<1 month) and have a hopefully easy problem to solve.
View 7 RepliesTwo days ago, my horn began honking for no reason...as if the anti theft alarm was going off. I was able to shut it off only by putting the key in its ignition. Last night, the possession by the devil was complete and at 10:30pm, my car began to honk (same as before) incessantly... and I wasn't able to turn it off. This happened about 5 time within 30 minutes. I tried to disconnect the battery but of course, the Prius designers placed the battery in a location that makes it impossible to disconnect. Why this horn malfunction is occurring?
View 5 RepliesI bought a 2007 Prius this week and I am having trouble with the door lock/unlock procedure. I have read and re-read the manual and feel I am doing everything correctly. What is happening is I can lock the car, either with the push button on the handle or with the key fob. When I return to unlock the car 2 things may happen. Either I get within 2 feet of the car and the alarm goes off or I can get close enough to touch the door handle and then the alarm goes off. Either way, I then have to use the fob to turn off the alarm noise and then I can unlock the car. All rather embarrassing and I'm getting tired of looking like an idiot! The worst part is when I was back at the used car dealer briefly yesterday and went to show him the problem, it behaved perfectly which was the only time it worked ever for me. I have tried both of my key fobs and the same thing happens with both of them.
View 13 RepliesA few days ago after returning from a trip, my wife backed the car out of the driveway and we heard a loud high pitched squeal the whole time we were in reverse. It almost sounds like a weeee noise or a buzzer of some kind. She says that occasionally while driving with the window down she has heard additional noises.
As if the car is trying hard. She said today when she pulled into the garage she heard the a similar noise while stopping. Now, this noise is nothing I've ever heard before on any car. It isn't like a normal brake squeal or anything like that.