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post #1 of 5 (permalink) Old 06-03-2019, 06:35 PM Thread Starter
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Adaptive Cruise Control Question

In April I purchased a new 2019 GMC Terrain Denali. One option that was a must for me was adaptive cruise control. Our family travels and this is a great feature. We are currently on our first trip and earlier today the adaptive cruise control had the following message “adaptive cruise control is currently unavailable.” This happened on another occasion too. Why is this happening? Is there a problem?
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post #2 of 5 (permalink) Old 06-03-2019, 08:21 PM
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I suspect dust (dirt or rainy weather splash etc) on the sensors...
I do not have adaptive cruise but when i drive on very dusty road i will get "side detection temporarily not available". I suspect it is similar sensors on the front bumpers sensing distance from the front car.

2018 equinox 1.6l Diesel LT, Hecho en Mexico, julio 2017

Last edited by tizan; 06-03-2019 at 08:27 PM.
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post #3 of 5 (permalink) Old 06-04-2019, 08:22 AM
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It uses both the sensor and the camera in the mirror. If its raining, snowing or foggy it will not work. Also if any of the sensor are dirty like bug guts it may cause this.
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post #4 of 5 (permalink) Old 06-04-2019, 10:13 AM
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I have a 2019 Equinox with the Adaptive Cruise and this has happened to me a few times and I was concerned at first thinking there was something wrong. For me it stopped working in the fog and a couple of times when the sun was lower on the horizon which was probably blinding the camera. When this happens I just switch to regular cruise mode.
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post #5 of 5 (permalink) Old 06-04-2019, 03:53 PM
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This is not a unique issue with the Terrian/Nox. My previous SUV, Toyota Rav4, had adaptive cruise and would on occasion tell me it was not available. Usually on messy days with lots of road salt, heavy rain or fog. I don't really miss it though. It is easy enough to adjust the speed manually with the steering wheel controls.

2018 Chevy Equinox LT - Cajun Red, 1.5T FWD
2017 Chevy Sonic RS - Kinetic Blue - Killed in the line of duty, R.I.P.
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