Skip the auto shop - Our mechanics make house calls

Q: Alarm goes off now and then

asked by on

The vehicle's alarm system intermittently goes off. The remote lock and unlock work automatically, and the LED lights blink intermittently and start on their own. Could it be heat related? The key and auto-lock systems work fine, but lights begin, and then the alarm goes off. Hauling/moving anti-theft sensor suspected.

These vehicles are known to have a problem with the ignition interlock theft control module, which would need to be replaced if determined to be bad. The new module would need to have the manufacturer scanner to do the tests, and to activate the new module. I recommend that you have a mechanic, such as one from YourMechanic, come by and check your car for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Alarm goes off now and then

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: car sat for 14 days and now won't start even after turning it off after jumping it.

From what you've described, it sounds like your battery is not capable to hold a charge anymore for long periods of time. I suggest having the battery and charging system checked. Have a certified technician, like one from YourMechanic, diagnose...

Q: Battery went flat causing alarm to sound and won't stop after changing battery

The most common methods to deal with this situation are to put the key in each door and lock and unlock to reset the alarm. You may need to do this in the trunk or hatch lid as well. The...

Q: Rattling sound

Hi. Maybe the light is the rattling sound you're hearing. If the light housing is loose, it will vibrate upon acceleration and cause noise. However, your rattling noise has countless potential causes. The only way to find the answer is...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.