Skip the auto shop - Our mechanics make house calls

Q: Car won't start due to anti-theft system

asked by on

My car won't start. I think it is because of my GM anti-theft system.

A: GM’s anti-theft system reads the transmitte...

GM’s anti-theft system reads the transmitter in the car key to verify that its the correct key starting the vehicle and will kill the car after it has been running for about 3-5 seconds, but it will still start up. If the car cranks and doesn’t start at all I would look into other parts like fuel and spark, have a mechanic verify your problem and fix it appropriately.

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: gas hand works after reving to 4000 rpm

Fuel sensing units were a common replacement item with your Mercedes Benz ML320 and that generation ML. In fact, most Benz' of that era have the same issue. Here is something you can try: Turn the ignition to...

Q: Car clicking when starting

Hi there. This sounds to me as like an issue in your anti-theft system. When your vehicle has its battery changed, the power is reset. This commonly triggers the anti-theft system which tell your computer to lock up. Have a...

Q: Engine and radiator dash lights

Hello. With the check engine and cooling system light both being illuminated, the first step you need to take is to have the vehicle scanned for diagnostic troubleshooting codes. This can be done by most technicians, and can also be...

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...
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...
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...