Display day/night mode does not work or does not work properly

2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Display day/night mode does not work or does not work properly
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Check if the Day mode color is set to same as the Night mode color (refer to the navigation system manual).
  • Check the vehicle battery condition first (see 12 VOLT BATTERY TEST ).
  • Check the connectors for poor connection or loose terminals.
  • Before troubleshooting, make sure you have the anti-theft code for the audio-navigation unit.
  • After troubleshooting, enter the anti-theft code for the audio-navigation unit.
  • Full brightness on the instrument panel brightness control with the head lights turned on causes the system to stay in the day mode, even when the lights are on.
  1. Make sure the instrument panel brightness control is not on full brightness. Turn the headlights on, and adjust the dash brightness to the middle range.
  2. Change the day/night mode under Set-up to AUTO, and recheck.

    Does the display change to day and night modes when turning the headlights on and off? 

    YES  -The system is OK at this time.

    NO  -Go to step 3.

  3. Go into the Diagnostic Menu, and use the Car Status test (see CAR STATUS ) to check for an ILL signal.

    Is the ILL signal OK? 

    YES  -Replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION  ).

    NO  -Check the ILL+ circuit between the audio-navigation unit and the No. 29(10 A) fuse in the under-dash fuse/relay box.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.