Skip the auto shop - Our mechanics make house calls

Q: Antitheft light flashing on dashboard

asked by on

The antitheft light was flashing on the dash. I moved my car in the driveway, and the next morning the ignition key would not turn. The steering wheel isn't locked, and the car is in park.

A: It sounds like the ignition switch has gone...

It sounds like the ignition switch has gone amiss. There is an antenna built into it to detect the proper key. If that malfunctions, your Anti-Theft Light will come on. The key not turning is a different problem. It is just a plain lock cylinder. If the proper key will not turn it, try another one. You can try a small spray of WD-40 or a graphite based lubricant. The fact that two things are wrong with one part pretty much says it needs replaced. You will have to have the new keys and cylinder programmed to the car for it to start. I would recommend having a certified mechanic properly diagnose your ignition in order to have the correct repairs done.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Van works well until it gets hot.

Operating temperature can drastically affect vehicle components - especially electronics. An engine that won't start when hot usually indicates a problem in one of the vehicle's circuits or electronic parts. Heat can cause thermal expansion and contraction, as well as...

Q: is it possible for some one else to have the key to start my ignition

If you do not have a spare key then it is possible someone else does have one. If you suspect someone has a key to your car, then talk to the dealer to get a different key lock cylinder and...

Q: Power doorlocks not working

I can imagine how frustrating it can be to have all of your power door locks suddenly stop working on your Oldsmobile. Now if you are trying to utilize the door locks and all four doors are failing to lock...

Related articles

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...
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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.