What does the ACC setting do?

The ACC (Automatic Climate Control) setting in automotive electronics is a feature that allows the vehicle's climate control system to automatically adjust the temperature, fan speed, and air distribution to maintain a comfortable cabin environment. This feature is designed to provide a more convenient and efficient way of regulating the vehicle's interior climate, reducing the need for manual adjustments by the driver.

How the ACC Setting Works

The ACC setting utilizes a variety of sensors and algorithms to monitor the vehicle's interior and exterior conditions, such as temperature, humidity, and sunlight intensity. Based on these inputs, the climate control system automatically adjusts the various components, such as the air conditioning compressor, heater, and blower, to maintain the desired cabin temperature and air quality.

The ACC setting typically allows the driver to set a target temperature, and the system will then work to maintain that temperature by making the necessary adjustments. Some advanced ACC systems may also take into account the number of passengers in the vehicle and their individual preferences to provide a more personalized climate control experience.

Benefits of the ACC Setting

• Improved Comfort: The ACC setting helps to create a more comfortable and consistent cabin environment, reducing the need for the driver to constantly adjust the climate controls.


• Increased Efficiency: By automatically adjusting the climate control system based on the current conditions, the ACC setting can help to improve the vehicle's fuel efficiency and reduce energy consumption.


• Enhanced Safety: The ACC setting can help to reduce driver distraction by minimizing the need for manual climate control adjustments, allowing the driver to focus more on the road.


• Customizable Settings: Many ACC systems allow the driver to customize the temperature, fan speed, and other settings to their personal preferences, providing a more personalized driving experience.

Overall, the ACC setting is a valuable feature in modern automotive electronics, providing a more convenient and efficient way to regulate the vehicle's interior climate and enhance the overall driving experience.

What is an ACC setting?

Button on the steering wheel. A white ACC icon will appear in the digital instrument cluster. Press either side of the resume. Set button to set the cruise. Speed.

What does the ACC setting on an ignition switch do?

The ACC (Accessory) setting on an ignition switch powers electrical accessories like the radio, interior lights, and wipers without starting the engine. This allows you to use the vehicle's non-engine features when the car is off, but it's important to be mindful of battery drain if left in this mode for extended periods.
 
What the ACC setting does

• Powers accessories: It activates electrical components such as the radio, power windows, and windshield wipers while the engine remains off. 
• Keeps the engine off: The engine is not running in this position, so the car will not move. 
• Saves power (compared to ON): This setting uses less power than the "ON" or "RUN" position because it doesn't power the fuel pump and ignition coils. 

How it compares to other ignition settings

• OFF: All systems are off, and the key can usually be removed. 
• ACC (Accessory): Powers accessories, but not the engine. 
• ON (or RUN): Powers all systems needed to run the vehicle, including the engine's essential components like the fuel pump and ignition coils. 
• START: Engages the starter motor to crank the engine. The key springs back to the "ON" position once released. 

Does the ACC setting drain the battery?

Yes, leaving your car in accessory mode can drain the battery, especially if you're running power-hungry accessories like a stereo, climate control, or chargers for a long time. The battery drains because it is not being charged by the engine's alternator. To avoid this, limit your use of accessory mode to shorter periods and turn off unnecessary electronics to extend battery life. 
Factors that contribute to battery drain

• Accessory use: Any accessory that uses power, such as the radio, lights, heated seats, or charging devices, will drain the battery. The more accessories you use, the faster the drain. 
• Time: Leaving the car in accessory mode for an extended period without the engine running will eventually deplete the battery. The battery is not being recharged by the alternator, which only operates when the engine is on. 
• Battery condition: An older or weaker battery will drain faster than a newer, stronger one. 
• Accessory type: Aftermarket accessories, especially powerful stereo systems, can drain the battery more quickly than the car's factory-installed equipment. 

Tips to avoid battery drain

• Limit accessory use: Avoid using power-intensive accessories for long periods while in accessory mode. 
• Turn off unnecessary electronics: Turn off lights, the radio, and unplug chargers when not in use. 
• Drive to recharge: Drive your car regularly to allow the alternator to recharge the battery. 
• Use alternative modes: If your vehicle has an "on" or "utility" mode (common in hybrids and EVs), use it instead of accessory mode, as it may keep the 12V battery charged or use the larger main battery to power accessories. 

Should I turn on ACC?

ACC Can Help You Drive Safer
With multiple cameras and radar sensors aboard, plus computer-quick activation of throttle and braking, ACC is like having an extra set of eyes on the road and an extra foot on the pedals. With an automatically consistent distance behind the car ahead, you can keep a safer space between.