Lexus LC Hybrid Overheating

Whoa, overheating on an LC?! That's not cool! I've got an LC too, although not a hybrid. I had a similar issue a while back with the check engine light and occasional overheating. Was a real headscratcher. From what I remember, it affected the car's ability to cool. Did you notice anything strange with the grille shutter? I'm not sure about the hybrid, but could be the flaps aren't opening, because I remember my mechanic mentioning something about an 'active air flap'.

Active air flap? That's not something I'm familiar with. Could you elaborate? I have almost no technical knowledge on grilles or cooling systems. Where is that exactly and how does it tie into the cooling system and overheating? Is it something easy to inspect, even for someone with limited mechanical experience?

Okay, so as I understand it, the active air flap is part of the grille – they're sometimes called 'grille shutters'. Basically, they open and close to control airflow to the radiator, which helps with engine cooling and also aerodynamics. If they get stuck closed, especially in this weather, it will cause overheating! I wouldn't recommend messing with it yourself since it might be linked to the car's computer system. I had to bring mine to a workshop because I needed a diagnostic scan to be 100% certain, which cost 590€. Seems as though the electromechanism was defective.

Thank you so much for the insight! I had a diagnostic scan performed, and it turned out to be exactly as you described – a defective electromechanism in the active air flap system. Repair costs, including parts and labor, came to around 590€. At least now I know exactly what the problem is and how to get it fixed, so I really appreciate your help!