Auto Light Sensitivity - Mazda CX3 Forum
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post #1 of 8 Old 04-20-2016, 05:16 PM Thread Starter
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Auto Light Sensitivity

Im noticing my auto headlights are becoming less and less sensitive. They used to trigger as soon as I entered my garage (both work and home), now I drive significantly further into the garage until they trigger. Its just as dark as before - no additional daylight is entering with the change in seasons.

Yesterday I drove through several dark tunnels on the freeway and other cars with auto lights triggered upon entry. Mine triggered half way through and then stayed on well past me exiting the tunnel. I drove for about a 1/2 mile on a floating bridge, no trees around or clouds in sight - this was at 11:30 am driving East. They still remained on.

Anyone else have an issue? Is my sensor failing? Thoughts? Thanks!

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post #2 of 8 Old 04-20-2016, 07:20 PM
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Hmm where is the sensor located? any chance it's being covered by soot / dust / grime?

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post #3 of 8 Old 04-20-2016, 08:59 PM Thread Starter
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My CX3 only has 3k miles and is immaculate.

I believe the sensor is on top the dashboard.

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post #4 of 8 Old 04-20-2016, 09:23 PM
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Originally Posted by VANDAL View Post
Hmm where is the sensor located? any chance it's being covered by soot / dust / grime?
The sensor is located behind the rearview mirror, with all the other sensors/cameras/lasers :-)

It's also used as rainsensor for the auto wipers.

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post #5 of 8 Old 04-21-2016, 03:21 AM
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You can alter the sensitivity in the settings menu. I know it shouldn't have change on its own but it's worth having a fiddle to see if it makes a difference. I changed mine to low because it was messing about at dusk - flashing off and on etc.

Currently CX5 SportNav 2.2 diesel automatic and AWD.
Formerly CX3 SportNav 1.5 diesel automatic and AWD.

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post #6 of 8 Old 04-21-2016, 03:30 AM Thread Starter
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Thanks, I did adjust the setting from high to low to high (no difference really on mine) and even did a "reset settings" in hopes it would go back to normal. No change

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post #7 of 8 Old 04-21-2016, 03:38 AM
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The only other thing you can try is to see if the sensor is clean. Its up on the screen - see attached.
Attached Files
File Type: pdf lights exterior.pdf (169.5 KB, 357 views)

Currently CX5 SportNav 2.2 diesel automatic and AWD.
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post #8 of 8 Old 04-21-2016, 07:49 AM
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I don't have that problem, but regarding auto lights, I find it too bad that the lights won't turn on automatically when it's raining.(even on max sensitivity)

I had that feature on my previous car and it was great.

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