Prius (Gen 3) :: Alarm Started Beeping And Wouldn't Stop
Jun 26, 2014
Apparently while I car was at the stealership for it's 45k service, the car alarm was going off crazy and wouldn't stop, so their techs disconnected the horns.
First time they delivered my car back, the horns wouldn't work- sent it back.
Second time around, porter turns off car, closes the driver door, and car alarm starts blaring, other techs and customers starting and closing their ears..
Not sure what could be going on.
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Last night I backed my truck up to allow another family member to leave, and the back-up sensor alarm started beeping, like it does when the tail-gate is down and backing up.
The truck had not been driven on Christmas day, but it had rained and snowed lightly (dusting), then the temp dropped to 20 degrees.
Can a light dusting/ice cause the sensor to react the same as a close object. I think it does, just trying to confirm.
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About a month ago, I started my car and the computer started beeping saying STOP! check coolant...so i did....it was on empty...this was rather weird to me because i remember seeing it on normal like a week ago....so i added the coolant to the max level in the tank.....Two weeks later it was on the MIN level line....so i added some again....then a week later it decreased a little again.... it would seem that its a leak....however i do not see any wet spots under the car...it seems that the coolant disappears due to driving the car... Could it be the coolant? Also, how does G12 coolant differ from regular coolants sold in auto stores?
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How can I eliminate the reverse beeping alarm if possible?
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2005 Prius, 90k, original battery I think, started beeping on shutdown, then wouldn't start today (cold). Got a new battery, but the back hatch wouldn't open, so I tried to jump it following owner's manual instructions. Headlights came on at first (although stalk switch was off), but doors/car wouldn't respond. Disconnected and reconnected jumpers, lights off this time, still no response when trying doors or starting car.
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Strangest thing just happened. Went to go open my door as I always do, and when I touched the handle sensor it beeped several times (more than the 2 times it does to unlock), and it didn't unlock. I would use my keyfob to hit unlock, but again when I tried to pull the handle open it was locked and kept beeping.
The passenger side seemed to work. Eventually I used the physical key to unlock the driver door and it worked. Didn't happen again after I locked/unlocked. Was there an issue with the electronic locking/unlocking mechanism?
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I was going down the highway at 70mph and came up to a toll booth when the brake pedal went to the floor and the car wouldn't stop. I hit the pedal hard and the car stopped in a very jerky manner as if the abs was initiated. I looked at the dash and the ABS, (!), and brake lights were illuminated. I turned the car off and then on again and the lights were off and the brakes worked normally again.
The Toyota dealer in CT said the weak battery was causing an under-voltage at the stroke sensor and replaced the battery. They told me if I lost my brakes again (!) I should bring it back for a new stroke sensor. In hindsight, I should have just told them to go ahead and replace the sensor. Two days later, driving down Florida route 301 in the rain, a stoplight went from yellow to red in about 3 seconds so I hit the pedal hard. The back brakes immediately locked up, the front wheels kept rolling, the car swerved and slid through the red light intersection sideways.
I counter steered and slid between two cars at the other red light, on the wrong side of the road as I straightened out. The car swerved and slid sideways again in the other direction and then spun around so I finally wound up in the correct lane, and I drove off like nothing happened. I was doing maybe 35-40 at the time and it's a miracle no one got hurt. Again I look down and see the lights illuminated. I cycled the power switch as before, and again the problem went away.
About an hour later the problem came back and this time no amount of power cycling will clear it. Basically what I'm understanding now is that it's the regenerative side that doesn't work with the bad sensor. The hydraulics kick in at around the last 10% of the pedal so the car will still stop, but I have to floor the pedal and that makes the car think your trying to lock up the wheels so it initiates the ABS system which makes stopping jerky and unpredictable. BEWARE the stoke sensor!!! What a dangerous design!! The dealer has the car now...
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This morning, while getting ready for work, my car's alarm sounded. I ran outside in the rain, and it was beeping and flashing, but there was no one around. I unlocked the doors, looked inside, everything looked fine. Shut her up, reset the alarm. Not 2 minutes pass and it goes off again. Same drill. This time I start the car and the MFA indicates the rear compartment is open, I check and it's not. I open it, shut it, and reset the alarm. You know what happens next, the alarm goes off.
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2004 UK Prius. My key fob won't open the car. I can open using the key in the side of the fob but then I can't stop the alarm?
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I am having issues with 2015 sonata sport. My car alarm has been going off randomly as well as lights flashing/beeping as if I was pushing lock button on key fob. I am not pushing any buttons and sometimes it will happen when The key fob is in my hand and I know I'm not pressing any buttons. When it does happen the little red light will flash on the key fob. I've tried using other key fob and have same issues with both. Also I have had to change the battery in both key fobs about 8 times thus far and I've only had the car a little over a year.
It does not happen all the time and I know if I take it in, my luck the car wont do it and they will tell me they don't see anything wrong. Sometimes the buttons wont work to unlock/lock the car and after a few minutes the car will beep and lights flash on their own and I will be able to then lock/unlock car again. This is getting very frustrating and it has become an annoyance for me and I'm sure my neighbors as well. I even will have people I work with come in and tell me my alarm is going off during my work shift.
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I have a 2003 Hyundai Elantra with about 96,0000 miles on it. A couple of days the car wouldn't start and I assumed the battery was dead. Also, every time I would turn the key, the alarm would do these short successive beeps. After AAA came to see about replacing the battery, he saw that the alarm would beep when the key was put in and told me the anti-theft system was preventing the car from starting, and that a new battery wouldn't fix it. At the time, the battery in the key fob was also dead but I got that fixed and the key fob is working.
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I own a 2004 Prius II. It has 140,000 miles on . I've changed the 12 volt battery last year and that has been the worst of isuues. However, my alarm has been going off after I get out of my car after driving it and it won't stop
untill I put the key FOB back in the slot and start the the car up. I have to leave the key FOB in the slot all night to stop it from going off all night long. I changed key FOBs and thought I had fixed the issue but after a long drive I came home got out of car and its started again. I have the other posts on this subject and tried all of the fixes except disconnecting the alarm Will try and take it to a dealership but not confident they can fix it.
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So I have been trying to figure out why when I turn off the car with the driver door opened, the car will beep continuously until I close the door again. Is it trying to tell me to remember the key? This was the case in my 2010 IS250 too... so its not something that is new.. its just now that I started wondering.
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Today I came out of a store & my car started beeping the panic alarm. I don't carry the key fob with me, just a key. I unlocked the door, sat down, put the key in & turned the ignition. The lights all lit on the dashboard as normal but the car did not start. absolutely nothing. I was at a loss for what to do.
Fortunately, someone came out of the store & asked me if I needed a jump & explained what happened, and he said let me try something. He tried to start the car, then got out of it, locked the door, unlocked the door, sat back down & tried again. The car started right up.
The car is a 2014 Elantra SE with the Premium Package.
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Two 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?
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I experienced the sudden onset of brake failure when driving home from work . The ABS light came on and stayed on and a loud continuous beeping alarm started sounding, and my brakes became non functional. I was fortunately able to bring my car to a halt without injury to self/ car or others. My 2010 4runner has approx. 83000 miles on it, and a local Toyota Dealership has told me that the ABS sensor needs replacement, along with the rear discs, calipers and brakes, seemingly from a simultaneous failure that the service advisor does not report having seen before.
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My 2012 F-150 has the back up camera, and the warning system that beeps with increasing frequency when you're backing into something.
It's worked flawlessly, however the last few times I've started and put it in reverse, it starts beeping constantly although there is absolutely nothing back there. Having been on this forum for probably 3 years, I don't recall this system ever being discussed.
So, where is the sensor located? I looked all around the obvious places, like under the rear bumper, and don't see anything. Is it part of the camera
system?
Secondly, what could make it beep when there is nothing there? Yes, the tailgate is up, and there is nothing in the hitch that might trick it. I'm thinking
dirt on a senor.
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My beloved 2005 Phaeton has started beeping when turned off both with and without the security system engaged. This has never happened before.
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Just picked up my F250 a few days ago and it's been great up until yesterday when I hopped in to start her up and nothing. It's a brand new battery and all lights worked, but the dash was dead. I attempted in vain for an hour or so to diagnose as to why this was happening and just happened to open the door with the key in the ignition and hit the door lock button....all of a sudden the truck starts beeping and the message on the dash said "to disable alarm start vehicle". I turned the key, the dash lighted up and away I went. What I may have done to cause this or has it happened to you? I'm thinking it's something with the key fob but not sure.
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I bought a 2005 camry at an estate sale last week. The serpentine belt was broken and guy running sale said the car set for 4 months and they jumped it off to start and it started and then died and wouldn't start. So I had it towed to my house. changed the water pump, idler tensioner, and new belt and now the car wont start. turns over good. so i changed plugs and still not starting. I will pull one plug in the morning and see if I'm getting spark. If not what would be next step.
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On my way to work this morning check engine light came on, diagnosis came up with 2 codes p2181 cooling system and p1516 intake changeover. went to leave work car started then died after about 5 seconds then wouldn't start. as of right now I am thinking that it might be the coolant temp sensor? That's not letting it start? the past week it has been getting bad gas mileage and a low idle.
Mods done giac chip now set at stock setting
APR exhaust and intake
107,xxx miles
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