Question about 2002 Chevrolet TrailBlazer

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The radio is locked and need code to unlock 2002 chevy trailblazer the battery was bad when I bought it.

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Posted on Jan 02, 2017

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SOURCE: unlock antitheft code for 2004 chevy impala

Radios in the 2004 Impalas are tied to the vehicle's VIN through the computer, so it may be somewhat difficult to get the code. However, the following steps should work:

1. Press and hold the buttons for presets 1 & 4 (may be 2 & 3). The word "SEC" should show.
2. Press the "MIN" button. "000" should be displayed.
3. Press the "MIN" button again to have the second two numbers appear. Record these numbers.
4. Press the "HR" button for the first two numbers to appear. Record these numbers. -- Note: Your number sequence should be the numbers from the "HR" button followed by the numbers from the "MIN" button.
5. Call 1-800-537-5140. This will get you to the GM unlock code automated line. Ignore the prompt and enter "202108#". Next enter your code (remember, HR then MIN) followed by the * key. For example, 1234*. A 3 or 4 digit code will be given to you. If you get a code such as 0532, drop the zero when entering it into your radio.
6. Enter the code into the radio IAW the applicable manual.

Posted on May 30, 2008

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SOURCE: 2002 Chevy Trailblazer Engine Codes

This is actually an easy swap out. Remove the electrical connection, remove the retaining bolt and pull out old one. I believe the sensor is located in the front passenger side of the engine on this particular model.

Posted on Aug 16, 2008

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SOURCE: I have a 2002 Buick Rendezvous CX with a locked radio.

what you need to do is pull the radio out and write down the serial number then call the dealer for the code. they may charge you 15-25 bucks but that will save you some money

Posted on Feb 27, 2010

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SOURCE: 2000 chevy malibu radio unlock help??

are u the original owner of the car ?if so do you still have the books that came with the car? look for the delco radio book !there should be a card in there with a code and instructions! if not the only wasy is to go to the dealer or a radio repair shop to have it unlocked!

Posted on Mar 17, 2010

  • 4862 Answers

SOURCE: Need the free radio code to unlock a Honda Accord

If the code is not written on the radio casing or inside the glove compartment, in/under the ashtray, behind the sun visor (or similar “hidden” place inside your car ) then the majority of HONDA codes may be available here

https://radio-navicode.honda.com

You will require the car VIN number and Radio serial Number

If they cannot provide your code then you will have to try your HONDA Main Dealer .....or a Decode Service who will plug in a laptop to read/recode the memory chip (EEPROM)
=

Posted on Jul 06, 2010

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If the radio display reads "code" then simply use theradio preset buttons, enter the code in the correct order, and the radio will unlock. If, however, the radio reads "Err" or "Code Err" It's likely that someone has made several attempts to unlock the radio using incorrect codes. In that case you will need to disconnect and reconnect the negative battery cable. This will reset the radio and allow you to enter your code. If you lost the code, you may retrieve it from https://radio-navicode.honda.com/
The code they gave me was 2246, but I had to add an 1 at the end of it to get it to work, so the end of it was 24461. Yours will be different.

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the dealer is fulla **** sorry ,the radio is locked but not tied with the vin
and if u take your battery lead off then put back on it will ask you for the code and same if u take it out
the way to get the code is in your manual for the car
or ring the company who made the radio
so what the dealer is saying if it cant be unlocked when u replace the battery it will need a code what do u do ? of course u can unlock it
just do what i said above and u will have your code usaually 4 or 5 digits

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