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2004 Trailblazer Won't Unlock with Key Fob or Actual Key

I have a 2004 Trailblazer that I hardly drive, I keep it in a garage so it's out of the weather, my battery is currently dead and I went to jump start it so I could drive it to charge battery, needless to say the key fob won't unlock the doors as the battery is stone dead, therefore, I tried to unlock the door with the key, it won't unlock. I have no way really to get in to even jump start it, I called local dealer and they told me to try my other key as maybe it's a problem with the key. They're saying that the key itself should unlock the door but it's not, it'll turn in the key hole but the door will not open. I'm going to try my other key but if this doesn't work what are my other options, I don't want to break the window to get in. Some dealers are telling me that a slim jim may and may not open door, any suggestions would be greatly appreciated!!!!!!!!! HELP ME!

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  • loxmith
    loxmith May 11, 2010

    Can you try the key in the other door and the rear gate, just to get you in so you can get in,get the hood open and charge the battery?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

emissionwiz
  • 75051 Answers

SOURCE: Code to program my key fob

Here are the program instructions

1. Close the vehicle doors.
2. Turn OFF the ignition.
3. Remove the key from the ignition.
4. Press and hold the driver side door lock switch in the UNLOCK position.
5. Insert the ignition key into the ignition lock cylinder and remove the key. (Do not turn the ignition key in the lock cylinder.)
6. Insert the ignition key into the ignition lock cylinder and remove the key. (Do not turn the ignition key in the lock cylinder.)
7. Insert the ignition key into the ignition lock cylinder. (Do not turn the ignition key in the lock cylinder.) Leave the ignition key in the ignition lock cylinder.
8. Release the door lock switch. The vehicle will sound three beeps in order to verify the Program Mode has been activated.
9. Press the LOCK and UNLOCK buttons together on the keyless entry transmitter and hold until the vehicle beeps twice to verify that the transmitter has been successfully programmed (this take approximately 15 seconds).
10. Perform the previous step to program up to four transmitters (including your old ones).
11. Remove the ignition key in order to exit the Program Mode

Posted on Dec 04, 2008

emissionwiz
  • 75051 Answers

SOURCE: key fob will not undo

If you don't have one that works for the vehicle now, you'll have to take it to your local dealer to have it programmed to the vehicle. Some will charge for this, some will do it at no charge.

If you do have a remote that is programmed and working for the vehicle, then the following steps will allow you to program another remote:

1. Enter vehicle and close all doors.

2. Put seatbelt on (or clip it into the buckle) to shut the warning buzzer off.

3. Put key in ignition, turn to run position but don't start it.

4. Press and hold the unlock button on the working key fob and hold for 4 seconds, then also press the panic button.

5. Release both buttons and you should hear a single chime to indicate it is in program mode. You have 30 seconds after the chime to program any additional remotes you want to program.

6. Press and release both the unlock and lock buttons simultaneously on the remote you are programming. You should hear another single chime.

7. Within 4 seconds after hearing the chime, press either lock or unlock button on remote that you are programming.

Posted on Oct 16, 2008

warlock61
  • 659 Answers

SOURCE: How do I program the keyless fob for my 1997 F250 pickup truck?

cycle the key on and off I can't remember if its 6 or 8 times. the locks should cycle up and down then press any button on the fob the locks should cycle again then turn off key

Posted on Dec 24, 2008

alicantecoli
  • 22095 Answers

SOURCE: How do I program S Type Jaguar key fob Year 2000 Jag ?

jaguar dealer only encrypted software

Posted on Dec 28, 2008

chryslertech
  • 115 Answers

SOURCE: program second key fob

Your key can only be programed at the dealer. They have to use a scan tool and a unique id code that they get from the factory. It is done this way to help insure that the vehicle is less likely to be stolden.

Posted on May 25, 2009

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Thanks. Keep updated for any more query. You can rate this solution and show your appreciation

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