Q: Why does my alarm go off when I hold the brake down?

asked by on

My Saab has had electrical issues ever since I got it but today WHILE IM DRIVING IT I pulled up to a red light and stopped. Suddenly the alarm went off. I panicked and turned off the car, started it again but the alarm continued. My light turned green and I was forced to keep driving. Maybe two seconds after I let off the gas and the car idled forward the alarm stopped. Everything was normal again. Until the next red light. This happened at every stop that was for more than a second or two. Once I was at school I parked the car to see if giving it gas turned the alarm off. Nope. I reved the engine in park and the alarm kept blaring, but the moment I let it back in drive and allow the car to move it went silent again. What the hell is wrong with it?

My car has 85000 miles.
My car has an automatic transmission.

Hi there. It sounds like the batteries in the alarm siren need changing. The alarm siren is located behind the wheel arch liner and easy to get to if you remove one side of the liner. The alarm siren has two batteries soldered onto the circuit board and are meant to last the life of the siren, but they don’t and typically start failing when the car is about 8 years old. Get a soldering iron and replace the batteries, but be careful not to burn the batteries. I recommend replacing the siren as a unit. If you need further assistance with your car alarm not shutting off, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Why does my alarm go off when I hold the brake down?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Any tips on how to get the shaft out of transmission.

Hello, thank you for writing in. There are a few things you can try. The most commonly utilized options includes larger and longer tools for more leverage. If you are attempting to save the axle you are removing, you will...

Q: Car noise, dashboard warnings on

One guess is that the problem could be a faulty wheel bearing(s). Bad wheel bearings often result in a rotational growling noise. The wheel bearing is integral to the hub assembly on your vehicle, which also houses the reluctor ring...

Q: Horn keeping blowing when key is taken out ignition.

The issue is with the security system on your car. Try disarming the vehicle by holding down on the unlock function to the key fob. If the locks on the car do not work while the horn is sounding, then...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...