Could be, but I think a seat heating malfunction is more likely. Looks like an older vehicle so there’s all sorts of things that could break down.

The driver also might’ve just parked it in the exact right spot to catch problematic sun reflections. There’s been a few buildings that are known to cause issues. People who parked around the ‘Walkie Talkie’ building in London had melted body panels, mirrors, burns in their interior, etc. They had to install screens on the building to stop this ‘death ray’ effect.