When do you enter the radio unlock code in a GMC?

When programmed, the stereo system becomes inoperable if the stereo ever loses power from battery disconnection or stereo removal. This protects the stereo from unauthorized use if stolen. In order to use the GM stereo, once locked, you must enter the radio unlock code successfully using specific buttons on the stereo.

Is it possible to unlock a GM RDS radio?

Tip: If the letters “RDS” appear on the display, it won’t be possible to unlock your radio yourself, as GM doesn’t offer retrieval codes for RDS radio units. In this case, you’ll need to visit a licensed GM dealership to have them reset your radio manually.

How do you reset a locked GM radio?

Under normal circumstances, a locked Theftlock radio must be reset by a licensed GM dealer, who uses a special code known only by dealership personnel. By entering the code yourself, you can avoid the trouble and expense of paying to have your vehicle’s radio unlocked at the dealership.

Where to find the GM RDS radio serial number?

Try locating the radio serial# by using the radio serial# retrieval procedure located at GM code retrieval Section 1.a below.. If your radio does not indicate a set of numbers on the display using this procedure and is a 2003-up, the vehicles radio MAY have an RDS radio. About the theftlock RDS radio system .

How do I unlock my GM Delco Radio?

Looking at the face of your GM Delco radio, hold down the preset buttons 1 & 4 OR 2 & 3 (Depending on year and model) for approximately 10 seconds or until a set of 2 or 3 numbers comes up on the display. Write the numbers down. Next press the AM / FM button. A new set of 3 numbers will now show.

How do you get the radio unlocked in a Chevy?

For Chevrolet: Press and hold the preset buttons 2 and 3 for about 10 seconds or until a three-digit code appears. Step 4: Press the AM/FM button. Another three-digit code should pop up on the display. Write the numbers down quickly alongside the first code. Make sure that you write the numbers you retrieved in the correct order.

How to unlock radio code and use vin relearn by GM Tech 2?

How to unlock radio code and use vin relearn by gm tech 2? Here is the step-by-step instruction on clear radio theftlock for GM (GM, SAAB, OPEL, SUZUKI, ISUZU and HOLDEN) models with GM Tech 2 scan tool. 1. Select “Diagnostics” at the Main Menu screen

When does a GM TheftLock radio lock up?

If you own a late ‘90s or early 2000s model General Motors vehicle, you may have found out the hard way that your factory Theftlock radio is programmed to lock up if there’s any disruption in the battery.

What to do if your GMC radio says INOP?

If radio display reads “INOP” while the vehicle is on, too many incorrect radio codes have been entered. To remove “INOP” from your display and unlock your radio, you must leave the key in the On position for one hour. Once you’ve retrieved your radio unlock code, write it down for future use.

How to unlock your Chevy or GMC radio?

How to Unlock a Chevy Radio. Step 1: Start the vehicle and turn on the radio. Step 2: Press and hold preset numbers 2 and 3 until a three digit code appears on the radio display. Write this code down. Step 3: Press the AM/FM button. Your radio will display a second three digit code. Write the second code down.

How to reset radio that shows as locked on a 2004 Chevy?

Turn the radio on by pressing the “power button” on the radio console. Wait until the radio flashes “CODE” on the display screen. Press in the code on the radio console number pad. Wait for the display screen to stop reading “CODE” and return to a normal display. This will reset the radio and allow you to use it once again.

What does it mean when your GM Radio is locked?

The digital display will read “LOC” if the radio is locked. If you don’t see the letters “LOC” but your radio isn’t working, the issue may lie elsewhere. Take your car to a qualified GM mechanic or car radio technician to have them diagnose the source of the problem.

How do you reset a locked GM TheftLock radio?

This is the most common code used by GM personnel to reset locked Theftlock radios. Key in each number carefully, then hit the # sign to send your request through. Under normal circumstances, a locked Theftlock radio must be reset by a licensed GM dealer, who uses a special code known only by dealership personnel.

What are the color codes for car stereos?

We discourage cutting the factory wire harness. This section aids in troubleshooting and determining wire color codes, phasing for speaker hook up, locating power wires for installing external devices and add-ons. With aftermarket stereo installation? IMPORTANT – There are two (2) yellow*, two (2) gray and two (2) brown wires in this harness.

What does the color code mean on a GMC?

BC/CC U316N or BC/CC L316N The U stands for Upper Color and the L stands for the Lower Color. Again, just a confusing way to present color information. Same Color Code, Different Name. GMC, like all manufacturers, uses the exact same color across many models and then will have a different color name for each model.

Where is the constant wire on a GMC stereo?

Locate the +12 volt constant wire first. Label it or splice to constant wire on aftermarket stereo first. Swapping yellow wires will cause damage to any aftermarket stereo. Check fuses if your unable to find +12 volts. Note the location of the connector “Keys” in yellow. All wire diagrams are not 100% accurate.

What kind of paint does a 1998 GMC all model use?

AutomotiveTouchup paint products are custom mixed to perfectly match the color of your 1998 GMC All Models using a basecoat/clearcoat system just like factory specs. To insure a proper match, you’ll need to know your vehicle’s color code so you can find it on the chart below. The color code will be located on a sticker named Parts Identification.

What kind of radio code does General Motors use?

General Motors began using the antitheft feature, “TheftLock” around the 1990’s and is still used in many GM vehicles. You will find the “TheftLock” radio code feature on most Pontiac, Cadillac, GMC, Chevrolet, Saturn, Geo, Oldsmobile, Hummer and Buick vehicles.

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