Circuit/System Verification

WARNING: This page is about a different car, the 2018 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.

Verify the application is installed on the mobile device and is up to date.
- If the application is not installed or is not up to date.
  Install or update the application on the device.
- Go to next step: If the application is installed on the mobile device and is up to date
Verify the application operates correctly on the mobile device.
- If the application is not operating correctly on the mobile device.
  Refer to the application web site.
- Go to next step: If the application is operating correctly on the mobile device.
Verify the K74 Human Machine Interface Control Module calibrations are current.
- If the calibrations are not current
  Reprogram the K74 Human Machine Interface Control Module and re-evaluate the concern.
- Go to next step: If no update calibrations are available
Verify the application is installed on the K74 Human Machine Interface Control Module and is up to date.
- If the application is not installed or is not up to date.
  Install or update the application and re-evaluate the concern.
- Go to next step: If the application is installed and is up to date
Ignition On/Vehicle in Service Mode. Infotainment system ON.
Verify the mobile device can connect to the infotainment system. Refer to the owner manual for information on the preferred connection method for the device.
- If the mobile device cannot connect to the vehicle infotainment system.
- If unable to connect via Bluetooth, refer to Bluetooth Malfunction .
- If unable to connect via USB, refer to Auxiliary Audio Input Malfunction .
- Go to next step: If the mobile device connects to the vehicle infotainment system.
Launch the application.
Verify the application operates properly with the vehicle infotainment system.
- If the application does not function properly
  Refer to diagnostic aids.
- Go to next step: If the application functions properly
All OK.