What does 'offa' mean on a car?

[StSteven]

Car's 'offa' is the auto start-stop switch, which features: 1. The engine can automatically shut off, reducing fuel consumption and emissions; 2. After the engine shuts off, the power supply can replace the pulley to provide operating power for the engine cooling fan and in-car air conditioning. Precautions for using auto start-stop include: 1. Quickly shift to P gear when the engine stops and release the brake; 2. Reduce current consumption; 3. Do not repeatedly press the brake when the engine is off; 4. Let the engine speed drop to zero before engaging the starter gear for restart; 5. Do not activate the auto start-stop system when parking at low speed or using air conditioning.

[CollinLee]

Last time I was driving, I noticed the OFF AUTO button on the control panel and curiously pressed it. The air conditioning immediately turned off, and I realized that OFF means completely shutting down the AC system, while AUTO activates the automatic adjustment mode. During regular driving, I prefer keeping AUTO on, letting the car adjust the fan speed based on temperature—like blowing cold air in the summer heat or warm air in winter without any hassle. Manual mode is also convenient; just turn the temperature or fan speed knob to fine-tune the settings. If the buttons respond slowly, check for loose connections or dirt and clean them promptly to maintain responsiveness. Make it a habit to glance at the control panel before driving to ensure safety.

[NolanAnn]

In the experience of seasoned drivers, the OFF AUTO button on the car actually controls the air conditioning functions: Pressing the OFF button shuts down all air conditioning operations, including stopping both cooling and heating; while the AUTO button activates automatic temperature control, where the system automatically adjusts the fan speed and temperature based on the interior temperature. Having driven for many years, I recommend new car owners to press AUTO at startup for a hassle-free experience. If the wind becomes too strong or the noise bothersome, simply switch to OFF for manual fine-tuning. Safe driving is paramount, so avoid fiddling with buttons repeatedly while driving to prevent distractions. Regularly inspect the control unit wiring for aging issues to avoid sudden malfunctions that could affect driving comfort.

[NoraLynn]

As a car enthusiast, I carefully studied the principle of the OFF AUTO button: OFF means the circuit is completely powered off and the air conditioning is turned off, while AUTO activates the system's intelligent control components to operate automatically, such as the temperature sensor adjusting fan speed based on sensed data. During testing, pressing OFF cuts off the current and all functions, while pressing AUTO again restarts the circulation mechanism. I use a multimeter to measure voltage to prevent fluctuations, ensuring a stable output of 10-15 volts within the normal range. Regularly clean circuit contact points to prevent corrosion or short-circuit overheating, avoiding system crashes. Don't overlook this small detail during long-term air conditioning use.