Q: Car alarm won't turn off. 2003 Chevy Impala

asked by on

I lost my key fob so I used the key to unlock the door via the handle. The alarm instantly went off, so I put the key in ignition and tried to start it. The car won't even attempt to turn over. I thought that both of these would have turned it off but unfortunately they didn't. So, I bought a new key fob that should work for the car and attempted to install it but it didn't work either. I put the black programmer into a black box under the steering wheel and held the buttons like it said but it didn't. Can anyone tell me what I am doing wrong or what I can do? I just want to be able to drive my car.
My car has an automatic transmission.

There are a few things you can try to turn off your alarm. You can put the door key in a door and unlock it and lock it three times in a row. This usually works on the drivers door, but sometimes this needs to be done from the passenger door or even the trunk. Try all three.

Another method is to disconnect the battery. With the battery disconnected, turn the key to the run position and then reconnect the battery with the key in the run position.

One of these two methods usually works to reset an alarm system. As for programming a new key fob, you will need a scanner to do so. You can reconnect a previously synced key fob without a scanner, but you will need a scanner to sync a new key fob.

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. Car alarm won't turn off. 2003 Chevy Impala

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: Car wont accelerate t.c light

The reason you are seeing the traction control warning light continuously is there is a fault somewhere in the complex sensor system that makes the system work by regulating the engine's output and selectively applying braking. There are wheel speed...

Q: AC doesn't work, compressor still works

Hello. If there is no air blowing out of the vents then the compressor is typically not the problem. It is common for the blower motor to fail and cause this as well as the blower resistor. Both of these...

Q: How do I change the battery in the Intelligent Key?

Your car’s Intelligent Key is responsible for telling the computer that you’re an authorized driver. If the battery dies, then you’ll have to insert the key into the port to get your car to crank. Thankfully, replacing the battery is...

Related articles

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...
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...
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...