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?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  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: Camshaft Position Sensor, cost to replace this and also a Evac leak.

Hi there: If you're experiencing certain symptoms, as in loss of power or difficulty starting the vehicle, you might want to begin by having a professional mobile mechanic complete a check engine light inspection first. This will allow them to...

Q: I have some individual issues in a car, battery replacement, and power steering fluid flush. How much do you charge per day/per hour.

Billing question sent to CS for power steering fluid flush, car battery replacement, and diagnosis full car repair.

Q: Car won't turn over but has new battery

YourMechanic next door was most likely correct and you have a problem with the key anti-theft system disabling the vehicle. You will either have to have a specialized locksmith come to you, program the key and make new ones, or...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...