Skip the auto shop - Our mechanics make house calls

Q: Can't start car due to security system

asked by on

My car will not start because of the security system. It is not letting it bypass the security. I had to replace the ignition switch, and since then the security system will not let me start the car.

A: Hi there. Your vehicle’s anti-theft system ...

Hi there. Your vehicle’s anti-theft system seems to be malfunctioning. A change of ignition cylinder will cause this problem because your vehicle thinks someone attempted to steal it. It is possible to bypass this anti-theft system in order to ensure the ignition side of your vehicle anti-theft system. Your vehicle’s anti-theft control system maybe the problem as well. This problem is difficult to properly diagnose without having the vehicle physically present. I’d suggest having a certified mechanic look into your issue with more detail to ensure proper diagnosis.

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

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: 05 Monty Carlo problem is hesitate and surgery between 45 to55mph. It is the throttle body sensor. It has 14400.00 miles replace

There are quite a few possibilities that a mechanic would consider in diagnosing an engine hesitation issue. The most efficient thing is do is schedule a hesitation diagnostic and the responding certified mechanic will simply go through a diagnostic "decision...

Q: Opinion on car theft through OBD port

Not really. A lot of it is just scam you know. People aren't stealing by plugging it in your car. First, they have to get in to begin with. The only time something like that happens is with high-end stuff...

Q: Security system keeping my vehicle from starting.

Hi there. Try turning on the ignition switch for 5 seconds then turn it off, but do not start the engine. Do this step 3 times and then the computer will acknowledge the key chip and should allow you to...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...