How to Turn Off the Engine Immobilizer System Light?
2 Answers
First, check the front and rear oxygen sensors. If these are faulty, the initial symptom is usually the engine warning light staying on (or occasionally flashing) on the dashboard. Generally, when this issue occurs, it's essential to promptly troubleshoot or replace the faulty components. Most modern vehicles are equipped with both front and rear oxygen sensors.
When I was driving just now, the anti-theft light came on, which indicates the anti-theft system is either working or has an issue. If the light stays on but the car starts normally, it might just be the system detecting the key; try turning off the engine, removing the key, waiting for about ten seconds, and then inserting it to start again. Sometimes, placing the key too far away or metal interference can also cause false alarms. If the light stays on and the car won't start, check the key immediately: if it's a smart key, replace the battery; or try starting with a spare key. Low car battery voltage can also trigger the alarm, so measure the voltage. Regular maintenance should include paying attention to this light as it relates to vehicle safety; if multiple attempts don't work, don't force it—drive to a nearby repair shop to check the fault codes to avoid breaking down on the road. Worn key chips or system software conflicts require professional handling.
