What are the different positions of a car key?
2 Answers
Detailed introduction is as follows: 1. LOCK position: This is where the key is inserted and removed. At this position, all circuits are completely turned off except for the anti-theft system and interior small lights, and the steering wheel is locked. 2. ACC position: Accessory power-on position. When the key is turned to this position, the accessory circuit is activated, allowing devices like the radio to function. 3. ON position: Power-on position. When the key is turned to this position, all vehicle circuits are activated, and the system prepares for engine start-up with necessary procedures and self-checks. The key remains in this position during normal driving. 4. START position: Engine start position. When the key is turned to this position, the starter circuit is activated, causing the engine to crank and start. Upon releasing the key, it automatically returns to the ON position. Additional information: These four positions are progressive, designed to allow electrical devices to enter operation one by one, thereby alleviating the burden on the car battery caused by instantaneous power-on.
Having driven for over a decade, I've found that key positions are quite particular. LOCK is the parking position - removing the key locks the steering wheel to prevent theft; ACC is the accessory position where you can turn on the radio or use the cigarette lighter without starting the engine, saving power; ON is the ignition position where dashboard lights illuminate for vehicle pre-checks, but don't leave it too long to avoid draining the battery; START activates the engine to get the car moving. I remember a friend once left it in ON position all day and completely drained the battery, costing unnecessary money for replacement. These designs prioritize both safety and energy efficiency - always develop the habit of returning to LOCK when parked. Many modern cars now use push-button start systems, but the position principles remain similar - simple yet practical.
