Q: I turn my car off n my anti theft light keeps flashing ....it has not done this before....do I have a problem

asked by on August 20, 2016

See above

My car has 70000 miles.
My car has an automatic transmission.

You may be having a communication problem with your key and the theft module. Try a different key to see if the problem continues. If it fixes it with the second key, then replace the key. If it is still not fixed, then have the dealer scan and test the theft system to see if it is defective.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Key won't turn in 1996 Mercedes-Benz E320
If the key wont turn normally try to jerk the steering wheel side to side while turning the key. If this does not free up the ignition then the ignition switch is likely the cause. When tumblers inside the ignition...
Car sitting low due to snow weight.
I am from the deep south and do not see any snow, but have been in areas of heavy snow in my career. My first thought would be that the vehicle rear springs were subjected to being compressed for a...
Service Engine Soon light is on in 2003 Toyota Tacoma
Hello code P0031 is for an oxygen sensor Bank 1 Sensor 1 heater circuit malfunction. Electrical testing should be performed to verify that the oxygen sensor has a good heater, measuring the resistance of the heater. If the heater has...
Gas gauge doesn't work correctly and moves randomly registering wrong amount of gas
Yes, the fuel sending unit is part of the fuel pump module. If there is an open in the fuel sending unit this will can you the false readings you are experiencing. The tank will have to be dropped to...
i am trying to drop the pedal box to the floor but its getting hooked up on the brake cable connection part
The space is very tight and you may have to do a little extra maneuvering or you may need to take out a couple extra parts for room so that you can wiggle things out. If you are still looking...
I found out I need a steering fluid pump,and it my acceleration is sluggish,and fan is not moving,and when I try to past 35mph,my
Hello. From what you describe it would appear that your vehicle is experiencing more than one problem. If the pump and AC blower motor are bad then they will need to be replaced to restore functionality to both systems. The...
My car is a Nissan Navara. My Check Engine Light is on and my acceleration is not well.
Hi there. It seems that the engine you have is a diesel engine. The code P2002 (https://www.yourmechanic.com/article/p2002-obd-ii-trouble-code-diesel-particulate-filter-efficiency-below-threshold-bank-1-by-logan-utsman) is coming up for the particulate filter and it has an efficiency issue. The only thing to do with this is replace the...
I replaced the battery, alternator, did a tune up and changed the fuel filter. The truck still has trouble starting
A hard start or stall after starting is most likely caused by a fuel pump that is not holding pressure up to the fuel injectors after you shut off the engine. The fuel pressure should be tested to verify the...
Getting fumes and smell while idling and driving
Hello there, many common faults will cause your 2003 Audi A4 to have fumes and a smell when idling. Generally any EVAP or gasoline vapor leaks will trigger a check engine light with an EVAP leak code. In some cases...

Related articles

How Does a Push-Button Start Work?
For the vast majority of people, cranking your car involves getting the key out, sliding it into the ignition, and turning...
2012 Hyundai Elantra vs. 2012 Ford Focus: Which One Should I Buy?
The Hyundai Elantra and the Ford Focus are both offerings in the inexpensive compact sedan category, and both represent some of the best offerings in that class. Compact cars are slightly larger than a subcompact, but smaller than a mid-size;...
4 Essential Things to Know About the Keys to Your Car
Car Car keys are an essential part of your vehicle and there are a few different types of them depending on the make and model of your vehicle. Car keys will allow you to get into your vehicle, start your...