Check the Battery: Ensure the car battery is fully charged. A low battery can cause the immobilizer system to malfunction.
1. Insert the Key: Insert the correct key into the ignition switch and turn it to the "On" position without starting the engine.
2. Press and hold: Simultaneously press and hold the throttle pedal to the floor and turn the key to the "Off" position. Keep both the throttle pedal and the key in this position for approximately 10 seconds.
3. Release the Key: Release the key from the "Off" position but keep the throttle pedal depressed.
4. Turn the Key: Turn the key back to the "On" position while still holding the throttle pedal down. Hold this position for another 10 seconds.
5. Release the Pedal: Release the throttle pedal and turn the key to the "Off" position.
6. Wait for the Immobilizer Light: The immobilizer light on your dashboard should start blinking. This indicates that the system is being reset.
7. Start the Engine: Wait for the immobilizer light to go out completely. Then, try starting the engine as you normally would.
Please note that this process might differ slightly depending on your specific Vectra model and production year. If the above steps do not resolve the issue, refer to your vehicle's owner's manual or seek assistance from an authorized Vauxhall dealership or a qualified auto technician who is familiar with your car's immobilizer system.
