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Dial 1-800-537-5140 to connect with GM’s toll-free radio hotline. Once you’re connected, you’ll be asked to provide your vehicle’s radio identification number, along with a special dealer access code. You’ll then be rewarded with a 4-digit retrieval code, which will allow you to unlock your radio.
Turn on your radio and see if it displays CODE or LOC. If it does, turn off the radio. Press and hold down the audio power button together with the SEEK button for about 50-60 minutes. Then, it will turn on without entering the radio code.
Press the “Source” or “Power” button to turn the unit off. Press and hold down the “Minute” button (located to the left of the GM vehicle stereo’s display. Some models require pressing and holding the left arrow button if no “Minute” button is present.) Release the button once the display shows “0000.”
The code is located on a card that comes with the original purchase of the vehicle, which we don’t have. A person can call the dealership with the serial number of the radio and Vehicle Identification Number (VIN) of the vehicle and ask for the radio code.
Step 1: Insert the key into the door lock. Use the side door on the driver’s side and the physical key even if there is a keyless entry system on the car. Step 2: Turn the vehicle key to unlock the car door without releasing it. Hold the key for 30 seconds in the position.
Keep those numbers handy
A car radio code is a short string of numbers associated with a security feature found in some head units. Its purpose is to prevent theft by rendering a stolen head unit useless when it’s disconnected from the battery. However, this feature also kicks in if your battery dies.
You can locate this inside the Vehicle Registration Document (V5) or on the windscreen of the vehicle; this begins with VF1, VF6 or VF8. Dacia Radio Codes processed using the VIN usually take approximately one hour from 9 am until 5 pm Monday to Friday and will be delivered to your email address.
Unlock the radio in your Vauxhall car or van from the fourteen digit serial number beginning with GM. You will find the serial number engraved into the casing of the radio. Our online service is available from 9 am to 9 pm or to get your code by telephone call 020 8243 8962 from 9 am to 9 pm Monday to Friday.
Turn the key to unlock your car door, but don’t release it. Hold the key in this position for 20 to 30 seconds. This lets the system know you have the correct key, and it can allow you to bypass the alarm system. Some vehicles recognize the key simply by turning the key back and forth in the door lock key cylinder.
The most common reason for a car radio to stop working after the battery has gone completely dead is that the radio has an anti-theft “feature” that kicks in whenever battery power is removed. When that happens, all you have to do is enter the right car radio code, and you’re back in business.
Most GM vehicles come with the Passlock II ignition security system, an anti-theft device that disables the vehicle’s ignition system during most theft attempts. The most common failure mode of Passlock II is when the ignition switch no longer recognizes the resistor embedded into the key, causing a no-start condition.
The factory Passlock anti-theft system immobilizes our cars by simply disabling the fuel pump from running. No fuel pressure = no car stealing. Check your car this way; use the remote keyfob to LOCK the car and observe the speedo or tach for the security indicator to start flashing or turn on.
Dial 1-800-537-5140 to connect with GM’s toll-free radio hotline. Once you’re connected, you’ll be asked to provide your vehicle’s radio identification number, along with a special dealer access code. You’ll then be rewarded with a 4-digit retrieval code, which will allow you to unlock your radio.
How much does it cost to unlock a GM radio? They usually charge a small (around $10) fee. Step 5: Start your vehicle and turn on the radio. Press the Hour button on the radio until the first two number of the code appear.
If your Mitsubishi factory radio says “OFF” or “CODE” when you turn it on you need to unlock it’s anti-theft feature. If it says “OFF” turn the key to ACC for 5 minutes with the radio on, and displaying “OFF”. After 5 minutes the radio will turn itself off. Turn the key off then back on again.
Remove the faceplate from your car stereo. Press the RESET button on the front panel using a pointed object, such as a ball-point pen.
Every time the battery is disconnected or becomes completely dead the radio will ask for the code. In most cases, you can just press and hold the power button for 2 seconds and the radio will automatically reset and start working properly without entering the code.
One last thing you can try if your car alarm is going off and you can’t get it to stop, but you can get under the hood is to disconnect the battery. By unplugging the battery for a few minutes, it will also reset the computer. All you have to do is disconnect the positive or negative terminal and wait.
If the security or anti-theft light is flashing when you attempt to start your car, and the engine does not crank or does not start, you have an anti-theft problem. The system may not be recognizing your key or keyless entry signal, or there may be a fault in the anti-theft module, keyless entry system or wiring.
Where is the fuse for the anti theft system? It is usually located on the dashboard by the driver’s door, in front of your left knee. You may find the alarm fuse in this fuse box. If you do not find an alarm fuse inside of the car, look in the fuse box under the hood on the driver’s side.
The anti-theft function activates if the battery is disconnected from the vehicle, if the battery dies and if the radio is removed or disconnected from its harness in the car. You will need to enter the anti-theft code into your radio in order for it to resume functioning.
TURN THE RADIO ON. THE RADIO SHOULD DISPLAY THE WORD “CODE”. If the radio displays and error (ERR) message, disconnect the black negative under hood battery cable for 1 to 3 minutes to reset the system). TURN THE RADIO BACK ON AND LOOK FOR THE WORD “CODE”.
Code | General Purpose | APCO (Association of Police Communications Officers) |
---|---|---|
10-21 | Call ( ) by Phone | Call ( ) by Phone |
10-22 | Disregard | Disregard |
10-23 | Arrived at Scene | Arrived at Scene |
10-24 | Assignment Completed | Assignment Completed |
Try to: Press the 1 button repeatedly to display the first number Press the 2 button repeatedly to display the second number Press the 3 button repeatedly to display the third digit Press the 4 button repeatedly to display the fourth digit number Press and hold the Preset 6 (or 5) button to save your code.
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