Radio and Odometer Dim Light

Chevrolet Equinox 2014 hatchback suv 41000 miles
When we are driving the radio and odometer lights dim. The switch to control the lights is all the way up to the brightest setting. It stays like that for a while and then comes back on brighter. We have taken to the dealer and it doesn't do it then. They have no idea why it does this.
Carrol from United States 6 years ago  
CA
1 report 
Sher from Canada 6 years ago
Mine does that too. No clue why.
Beannie1007 from United States 6 years ago
Same here. I've even mentioned it to a mechanic and he had no idea why either.
Mazdaadvisor4 from United States 6 years ago
Is there anything that might be impeding the sensor located on the dash, it reads ambient light, and if headlights are set to auto illuminate it dims dash light when activated.
njam from United States 5 years ago
I have the same issue. Any ideas?
Inkman66 from Canada 2 years ago
They have a system that automatically adjusts the charging output to the voltage needs of the vehicle. I would start with that particular sensor as a possible culprit when trying to find the issue.
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