It is usual to blame on the circumstances and such. But let me tell you, the actual causes of any happenings usually revolve around yourself or are very tightly related. Blaming is a pretty old, outdated story. Believe responsibly my friends. ;-)
It could have been something to do with temperature, as there was apparently higher than average temps in Montreal that day. Batteries do not do well with extreme heat. Who knows if this guy’s garage was properly ventilated…
The thought is, if the garage was in full exposure of the sun with windows, and sealed up tight… could’ve gotten quite hot in there. Still, the tolerances should be well capable of withstanding that. I agree that it’s more likely there was some fault with the vehicle’s power system.
I’m only aware of the US, but most residential garages are not ventilated at all, except for the normal cracks around the doors and most homeowners are encouraged to seal them. Gas engine cars typically don’t require any ventilation when parked and not running, which would probably be the expectation of the average EV buyer as well. If special parking conditions are required to prevent a possible meltdown, then we’re going to see a lot of problems in the south, where detached, unventillated, windowed garages are the norm.
My garage in San Francisco is vented as are many of the other ones I’ve seen. Of course they are all attached to the house typically being on the ground floor so that might be a factor in it.
For attached garages, I think that’s for energy savings as well as minimizing CO fatalities from accidentally leaving a car running or remote starting. Even in the Midwest typical 2 story home with adjacent living areas and bedrooms directly over the garage, it’s often just a sealed box with no vents. They do however get some thermal benefits from sharing interior walls and solar shielding by the house. Older detached garages out in the open sun however can get really sweltering compared to most attached garages.