Some car makers have a «trim level zero» that lacks heavy features such as air conditioning and electric seats, but which can't be requested. (evo.co.uk)
There are ceiling fans throughout as well as air conditioning in all of the bedrooms. (belize-sothebysrealty.com)
As the air conditioning system is linked to the one that maintains cabin pressure, this problem could have been linked to the loss of pressure. (newscientist.com)