Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
NAVI Display Won't Switch To Night Mode With Headlights Turned On (B08020E)
Reference number: B08020E
NAVI DISPLAY WON'T SWITCH TO NIGHT MODE WITH HEADLIGHTS TURNED ON
TECHNICAL SERVICE BULLETIN
| ACURA: | 2007-08 MDXs; 2000-04 3.5RLs; 2005-08 RLs; 2004-08 TLs; 2004-08 TSXs |
| CURRENTLY APPLIES TO: | '07-08 MDXs; '00-04 3.5RLs; '05-08 RLs; '04-08 TLs; '04-08 TSXs |
SERVICE INFORMATION
Got a vehicle in your shop because the navigation system display screen won't automatically switch to Night mode when you turn on the headlights? The reason could be the dash illumination control setting.
If the control is set to full brightness when the headlights are on, it overrides automatic display mode switching and the display screen stays in Day mode no matter if the headlights are on or off. This comes in handy if you're driving in daylight with the headlights on but you want the display screen bright so that it's easier to read.
To fix this problem, here's what you need to do:
- Start the engine.
- Turn on the headlights, and adjust the dash illumination control setting from full brightness down a few clicks to middle brightness.
- Turn off the headlights, and shut off the engine.
- Start the engine again.
- Cover the sunlight sensor on the dashboard with a towel to keep any light from reaching it.
- Turn on the headlights, and watch the display screen.
- If the display screen switches to Night mode, you're done with this repair. Remove the towel from the sunlight sensor.
- If the display screen stays in Day mode, refer to the Navigation System section of the applicable S/M and continue with normal troubleshooting.
For more info on automatic display mode switching and for recommended display mode settings, check out System Set-up in the applicable O/M.
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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.