The message “Full Accessory Power Active” might appear on your car’s dashboard, leaving you wondering what it means and how to turn it off. This isn’t a cause for major concern, but understanding it can help you avoid unnecessary battery drain.
What is Full Accessory Power Mode?
When you turn your car on without starting the engine (typically by pressing the start button once without depressing the brake pedal), your vehicle enters accessory mode. This powers features like the radio, infotainment system, and interior lights.
“Full accessory power active” simply indicates that all available power in this mode is being directed to these features.
Why Does This Happen?
There are a few reasons why you might see this message:
- Accidental Activation: Sometimes, pressing the start button incorrectly (once without the brake) can trigger accessory mode.
- Software Glitch: Occasionally, a software glitch in your car’s system can lead to this message appearing even when you haven’t activated accessory mode.
Turn off Full Accessory Power Active:
The solution is simple: Start the engine. Pressing the start button again while depressing the brake pedal will crank the engine and turn off accessory mode. All non-essential features will then shut down to conserve battery.
What if the Message Persists?
If the message remains even after starting the engine, it might indicate a software glitch. Here’s what you can do:
- Soft Reset: Try a soft reset by turning your car completely off (no power at all) for a few minutes. Then, restart it normally. This can sometimes clear minor glitches.
- Consult Your Manual: Your car’s owner’s manual might offer specific troubleshooting steps for this message.
- Contact a Dealership: If the message persists after these attempts, it’s best to consult a certified technician at your car dealership to diagnose and resolve the issue.
Remember:
Full accessory power mode is a normal function, but it shouldn’t be left on for extended periods to avoid draining your battery. By understanding its purpose and how to turn it off, you can ensure your car’s electrical system operates as intended.
