Skip the auto shop - Our mechanics make house calls

Q: Alarm sounding when I turn key

asked by on

The alarm sounds when I turn the key in the ignition, and the car won't start.

A: Try inserting the key into the door and man...

Try inserting the key into the door and manually unlocking it three times to reset the alarm. If this is successful, attempt to start the vehicle. If this does not work, there is a problem with the coding of your ignition key and a locksmith will have to cut and recode a new key 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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Gas gauge not registering fuel level

Hi there, and thanks for asking about the problem with your 2016 Lexus RX450H. This doesn't sound like a tank problem, but rather the scenario where the tank includes 2 fuel gauge sensors, and 2 fuel pumps - a fairly...

Q: Air conditioning leaking

I would first recommend having the air conditioning system inspected to determine where the leak source is located. Once the leak source is found, have it repaired and have the system recharged. Depending on the type of system you have,...

Q: Catalyst not ready

Hi there. The powertrain control module (PCM) monitors the performance of emissions related systems in your vehicle. In the case of the catalytic converter, it looks at the signals from the oxygen sensors to determine catalytic converter efficiency. If the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...