You can close specific apps running in the background on the system.

1. Select and hold
.
2. Select the Active tab.
3. Select an app you want to close.
4. Select Clear.
Closing Apps
If you have a number of apps running in the background and something goes wrong with the audio system, some of those apps may not work properly. If this happens, close all the apps and relaunch the app/apps that you want to use.
To close all apps on the system, select Clear All, then Yes.
You cannot close the HondaLink’ and Garmin* apps.
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Adjusting the SoundHonda Civic Owners Manual. Emissions Testing
Testing of Readiness Codes
Your vehicle has readiness codes as part of the onboard self diagnostic
system.
Some States use these codes for testing to verify whether your vehicle's
emissions
components are working properly.
The codes may not be read properly if testing is performed just a ...