[Estoril_GT]

I know there are a bunch of coolant warning threads for the F series, but I'm wondering if this is a sensor issue or an electrical issue. (has this been called out in an official bulletin)

Previous years i would get the cold weather battery warning

Now this year, im getting the coolant warning. Visually it looks fine, cold. But ive even topped if off and still had it come on.

If i drive around the block, restart the car, the warning is gone.

[SupremeF34]

Making some quick replies to get PM ability..

I recently had my lower auxiliary radiator taken out by a rock/rocks over time. It’s the one on the passenger side..you should be able to see if through the fog light trim if you have it, especially on M sport trim. We also have our larger radiator which is exposed from factory on vehicles prior to December 2017. After that, they installed rock guards to protect it from rocks flying through the kidney grilles and lower bumper grill. I confirmed with my local dealership that there is a bulletin on the issue of the larger radiator, not the smaller one, as of yet, unfortunately. Fortunately it’s an easy fix.

[Billfitz]