Where is the TheftLock code on a Chevy Silverado?

Where is the TheftLock code on a Chevy Silverado?

The Theftlock I is found in pre 2000 vehicles and Theftlock II is in the latter models. Theftlock I – Uses a volatile code that is input through the key pad on the front of the Radio. If the power is lost (dead battery etc.) the code is gone and must be re-entered for the radio to work.

Why does my GM radio say theft lock?

If the VIN information of the vehicle does not match the learned VIN information in the radio, it will display “LOCKED” or “THEFT LOCK”. Currently, performing the radio setup in SI (Document ID # 1745049) will not learn the vehicles VIN information to the new radio.

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.

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.

What does theft lock do on a GM radio?

Theftlock is a theft prevention system designed into GM-brand radios starting in the mid-1990’s. This system is designed to lock the radio from use in the event of a loss of power, either from being disconnected or when the battery loses its charge.

Why is my Chevy TheftLock not turning on?

This security code keeps someone from using the radio in another vehicle if the unique security code is not entered. The radio display will read “LOC” and the device will not turn on. Whenever your Chevy battery is disconnected or the battery dies, the Delco Theftlock radio enters the “LOC” mode.

How to unlock a Chevy TheftLock Radio Part 3?

Part 3 of 4: Obtain the radio unlock code 1 ) sign. 2 Enter the radio serial number. You will be prompted to enter the radio serial number you have just obtained. 3 Write down the radio unlock code. The prompt will read out your four-digit radio unlock code. Write it down precisely.

What causes a GMC truck to go into theft mode?

The passlock sensor and/or lock cylinder are defective or worn out causing the truck to enter a theft mode (starts, then immediately stalls approximately 2 seconds later). There are a number of ways to fix this, but most common/ secure way is to replace the defective components.