Frontier oil temperature warning light

Sounds familiar! I had a similar issue with my old BMW 3 series. Same symptoms – warning lights all over the place. Have you checked the sensor's cable and plug connection? That was the culprit in my case.

Thanks for the quick reply! So, on your BMW, was it definitely the cable or the plug itself that was faulty? Just trying to narrow things down before I start ripping things apart.

Yeah, it was the connection. It was corroded and loose. I'd suggest checking that first. If you're not comfortable doing it yourself, maybe take it to a workshop. It's probably a quick fix.

You were spot on! Took it to the shop, and it was indeed the cable connection to the oil temperature sensor. 95€ later and all good. Thanks for the help!