Q: Antitheft system keeping car from starting

asked by on

The antitheft system is locked on and will not let my car start.

Hi! I suspect the immobilizer system needs to be reprogrammed to the key or vice versa. There are a few things that can be done to reprogram an alarm system depending on how much memory the immobilizer system has lost. Such as leaving the key in the on position in the ignition for 10 minutes, unlocking/locking the drivers door 5 times, or unlocking the trunk with the key. If those methods do not work, you will unfortunately have to take it to a dealership because only they posses the special equipment needed to reprogram immobilizer systems.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Antitheft system keeping car from starting

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: When I shut off engine, the light between 7 and 8 on the dash started to blink. The light is in the shape of a car. I goes away on startup.

The light on the dash could be coming on for the traction control system or the low speed, grade, and terrain assist. It would be best to have the computer scanned to see if there is any pending or stored...

Q: Fuel pump running with car off

Hello. A fuel pump that stays on when the ignition is turned off can be caused by a few things. If you do not believe that the behavior is normal, then it may be possible that the the ignition switch...

Q: My car won't start after a break-in & attempted theft.

When someone breaks in the vehicle, the Immobilizer system shows that the doors were locked from the outside. When the doors are ajar from the outside when locked, the security would set so the vehicle could not be stolen. Look...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...