Q: Antitheft system keeping car from starting

asked by on March 22, 2016

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

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

P0054

Hello. Without having the vehicle here for examination it is hard to say if it is safe for a longer trip. The code your car was detecting is for the heated oxygen sensors, and the technician replacing them was the...

Throttle body replaced and now my rpm idle very high

Hey Brandon. Thanks for sending in the question yesterday. There are two reasons why this tends to happen after replacing a throttle body. Either there is a vacuum line that has come loose (which is rather common), or the idle...

Loss of antifreeze at air intake

A common failure in your engine is the intake manifold and intake plenum gaskets. When this happens coolant will leak under where the throttle body is located. I would recommend having a certified mechanic, such as one from YourMechanic, inspect...

Related articles

A Buyer’s Guide to the 2012 Chevrolet Camaro
The The 2012 Chevrolet Camaro is an exciting car that says a lot about American drivers and what we want. While fuel prices are high and the economy is just barely starting to resurge and stabilize after years of recession,...
How to Find a GPS Tracker in Your Car in 5 Steps
Using the right tools and methods, check the exterior and interior to find a GPS tracking device in your car
The Best Used Cars to Buy If You’re a Plumber
Plumbers Plumbers need to carry around all manner of tools and supplies. If you’re plumbing a large building, or even a decent sized home, you’re going to need a vehicle that has quite a bit of cargo capacity. A car...