Resetting the system management controller (SMC) can resolve certain issues related to power, battery, fans, and other features. Reset the SMC on computers that have the T2 chip If your Mac has the Apple T2 Security Chip , follow these steps. If you need help, contact Apple Support . Notebook computers with the T2 chip Before resetting the SMC, try these steps: Shut down your Mac . Press and hold the power button for 10 seconds, then release the button. Wait a few seconds, then press the power button to turn on your Mac. If the issue persists, follow these steps to reset the SMC: Shut down your