Question about 2003 Chevrolet TrailBlazer
1. Press and hold presets 2 & 3 for about 10 seconds until the first 3 digits of the display code are displayed.
2. Write the numbers down.
3. Press the AM/FM button, write down the next 3 numbers.
4. Call 1-800-537-5140, when asked, enter 620529, press the # button and enter the 6 digit code from the radio, you will get an unlock code, write it down.
5. Go back to the car, press the HR button and set the first 2 numbers, then press minute button and set the next two last numbers, press AM/FM button, SEC should be displayed, turn on radio.
To remove customers code, repeat step 5. you should see --- on radio face, the code is now out of the radio.
EDIT: Updated with new dealer code. FWIW, the old code was 202107
Posted on Dec 30, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Sep 04, 2015 | 2008 GMC Acadia
Apr 22, 2015 | Ford Cars & Trucks
Jan 12, 2015 | Ford Cars & Trucks
Apr 25, 2010 | 2000 Pontiac Grand Prix
Feb 22, 2010 | 1999 GMC Sierra
Aug 17, 2009 | 1999 Buick LeSabre
Jun 21, 2009 | 2001 Mitsubishi Montero
707 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: