iPhone 13 brightness goes down when used for car navigation

May 28, 2023 1:26 PM

I have an iPhone 13. I use it as a GPS for my car (using Google maps). Usually, a while into the trip, the brightness on the screen goes down. My understanding is that this is because the phone gets hot. Is there a way to stop this?

I've tried taking the phone out of its case, but that seems to no stop it from happening

I've read that it might help to disconnect the phone from its charger, but I'd really rather not do that

Right now I use a windshield mount. Would it help to get an air vent mount and turn on the AC?

Anyhing else I can do? I like having the screen be real bright...

posted by ManInSuit to Computers & Internet (4 answers total)

Yes to the air vent mount. My spouse and I have both had various phones overheat in the car (we live in a warm humid climate), and the air vent mount has solved that problem.
posted by hydropsyche at 1:33 PM on May 28, 2023 [2 favorites]

It may also help to turn off auto brightness:
Settings > Accessibility > Display & Text Size > Auto-Brightness
posted by Lanark at 2:05 PM on May 28, 2023 [1 favorite]

Seconding disabling auto-brightness. Also, turning off auto-lock (Display and Brightness > Auto-Lock) might help.
posted by Thorzdad at 5:34 AM on May 29, 2023

Response by poster: (air vent mount worked)
posted by ManInSuit at 7:56 PM on July 16, 2023