Why are my key fobs not working on my 2006 Chevy Monte Carlo XLT?

To better answer your question it helps to know if the key fobs worked before and just stopped working, or if you bought a new key fob.

If you bought a new key fob you must program it to your vehicle. Here are the key fob programming instructions for a 2006 Chevy Monte Carlo:

NOTE: 2O11 & newer vehicles must be programmed by an automotive locksmith or dealership.
PROCEDURE #1
THIS PROCEDURE IS FOR VEHICLES WITH THE DRIVER INFORMATION CENTER. IT WILL BE A BUTTON TO THE RIGHT OF THE STEERING WHEEL WITH A VEHICLE ICON AND THE LETTER i.

1. Insert key and switch the ignition ON (just shy of starting vehicle without cranking engine)
2. Press vehicle information button until PRESS TO RELEARN REMOTE KEY is displayed.
3. Press the set/reset button (button will have a check mark) until REMOTE KEY LEARNING ACTIVE is displayed. Vehicle is now in programming mode.
4. Press and hold LOCK and UNLOCK buttons at the same time on first remote for approximately 15 seconds. An acoustic signal will be heard indicating successful programming.
5. Repeat step 4 to program additional remotes. You can have up to 8 programmed remotes for this vehicle. You must program ALL remotes including existing remotes.
6. To exit programming mode turn ignition OFF, remove key and test all remotes.

PROCEDURE #2
THIS PROCEDURE IS FOR VEHICLES WITHOUT THE DRIVERS INFORMATION CENTER.

1. Insert key into the ignition and turn to ON (Just shy of starting vehicle without cranking engine).
2. Press the trip odometer reset button until RELEARN REMOTE KEY is displayed.
3. Press and hold the trip odometer reset button for approximately 3 seconds until REMOTE KEY LEARNING ACTIVE displays.
4. Press and hold LOCK and UNLOCK buttons at the same time on first remote for approximately 15 seconds. An acoustic signal will be heard indicating successful programming.
5. Repeat step 4. to program additional remotes. You can have up to 8 programmed remotes for this vehicle. You must program ALL remotes including existing remotes.
6. To exit programming mode turn ignition OFF, remove key and test all remotes.

If your key fob worked previously and it just stopped working here are a few key fob fixes to try:

Change the battery
Batteries don't last forever, you'll be surprised how often it's just a dead battery! Search our YouTube channel on how to change a key fob battery for your specific year, make, and model!

Wipe the board
The board inside your remote can get a lot more filthy than you think! When the board is dirty it can prohibit the contact to the circuit board when you push down on the button. Simply wiping the circuit board off can make your key fob like new again!

The old car battery reset trick
I know this sounds absurd, but it works sometimes and is worth trying. If you exhausted all of the options above, disconnect both terminals on your car battery for 10 minutes. Then reconnect them and try your key fob. This has worked for many people and I have no idea why.

t might be time for a new key fob! No need to dread over the expensive costs of a new key fob, at Keyless Entry Remote Fob Inc., you can get a refurbished one for a very affordable price! You won't even be able to tell the difference. Just search your vehicle make, model, and year to purchase a key fob or give us a call at 402-671-5100.

2006 Chevrolet Monte Carlo Key Fob Remote Programming ...

blog.keylessentryremotefob.com/.../2006-chevrolet-monte-carlo-key-fob...
Mar 27, 2014 - 2006 Chevrolet Monte Carlo Key Fob Remote Programming Instructions ... If you need an extra Key Fob or Replacement Fob for any vehicle ... Donot start the car. ... ****IF ANY OF YOUR REMOTES STOP WORKING AFTER ..