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| This is a discussion on Panic alarm within the Gen II Prius Care, Maintenance and Troubleshooting forums, part of the Gen II (2004-2009) Toyota Prius Forums category; The panic alarm on my 2005 Prius has been spontaneously going off. This happens when the car is locked, whether ... |
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Panic alarm
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04-22-2009, 10:40 AM
| #1 |
| Junior Member Join Date: Apr 2009 Location: Santa Monica, CA
Posts: 3
My Car: 2005 Prius Model: Package: N/A Thanks: 0
Thanked 0 Times in 0 Posts
Friends: 0 |  Panic alarm The panic alarm on my 2005 Prius has been spontaneously going off. This happens when the car is locked, whether I am nearby with my fob, or miles away (unhappy neighbors have reported). I've taken my car in twice for this problem, but the service dept doesn't have a clue. |
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04-22-2009, 10:44 AM
| #2 |
| Prius Pusher  Join Date: Mar 2006 Location: Northern Michigan
Posts: 13,914
My Car: 2006 Prius Model: N/A Package: #7 Thanks: 648
Thanked 1,315 Times in 920 Posts
Friends: 15 | Re: Panic alarm Most likely you need a new 12V battery. When was it last replaced? If you say it hasn't been replaced, then there is your answer. Tom |
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04-22-2009, 12:56 PM
| #3 |
| Special Master  Join Date: Mar 2004 Location: United States
Posts: 6,274
My Car: 2004 Prius Model: N/A Package: #6 Thanks: 222
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Friends: 0 | Re: Panic alarm As jdenenberg notes: "There is a simple procedure to test the health of your 12v battery. I have documented it in several of these discussions. You can see the procedure at: Checking 12v Battery Health - Hybrid Car Forums It is also documented at 12 Volt (12v) Toyota Prius Auxilary Battery for 2004, 2005, 2006, 2007, 2008 and 2009 with installation kit and free shipping which sells high quality replacement batteries for the Prius." If you have a voltmeter you can also check "12V" battery voltage at the jump point under the hood. With the car OFF a perfect battery will be in the range 12.4 to 12.6 V. If it's less than 12.0 V it is near the end of its life.
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05-07-2009, 12:46 PM
| #4 |
| Junior Member Join Date: Apr 2009 Location: Santa Monica, CA
Posts: 3
My Car: 2005 Prius Model: Package: N/A Thanks: 0
Thanked 0 Times in 0 Posts
Friends: 0 | Re: Panic alarm The 12v battery was indeed low and Service replaced it. Problem with Panic Alarm still unsolved. Service then adjusted the sensitivity on the alarm system from 8 to 6. Alarm still is going off spontaneously when car is locked and doesn't seem to be related to vibrations by heavy vehicles driving by as suggested by Service. Aararrrgh! Don't know what to do. |
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05-07-2009, 01:20 PM
| #5 |
| Senior Member Join Date: Sep 2007
Posts: 155
My Car: Model: Package: Thanks: 1
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Friends: 0 | Re: Panic alarm is this alarm perimetric or volumetric ? or both ? |
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05-08-2009, 12:45 PM
| #6 |
| Special Master Join Date: Mar 2004 Location: United States
Posts: 6,274
My Car: 2004 Prius Model: N/A Package: #6 Thanks: 222
Thanked 307 Times in 171 Posts
Friends: 0 | Re: Panic alarm Is this the factory-installed alarm, or some dealer-installed or other aftermarket junk? Last edited by richard schumacher; 05-10-2009 at 01:41 PM. |
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05-08-2009, 01:08 PM
| #7 |
| Senior Citizen Join Date: Jul 2005 Location: SE Pennsylvania
Posts: 1,212
My Car: 2009 Prius Model: Package: #5 Thanks: 2
Thanked 91 Times in 80 Posts
Friends: 0 | Re: Panic alarm Is it the glass breakage alarm? If so, have it disconnected. I had it on my 04 and my brother-in-law had it on his 06. We both had them disconnected because of false alarms. |
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05-08-2009, 04:35 PM
| #8 |
| Prius Pusher Join Date: Mar 2006 Location: Northern Michigan
Posts: 13,914
My Car: 2006 Prius Model: N/A Package: #7 Thanks: 648
Thanked 1,315 Times in 920 Posts
Friends: 15 | Re: Panic alarm The OEM alarm doesn't have a seismic sensor, so I suspect it is an aftermarket alarm. You can buy a glass breakage sensor for the OEM system, but I can't see how that would cause any trouble if no glass is broken. Tom |
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| alarm, panic |
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