Uber in Peru - turning on AC costs extra?

Hi. I’m in Lima and I booked an UberXL for my family from the airport to the hotel. It’s a 1 hr ride.

The driver told us that the UberXL service does not include air conditioning and if we want it to be turned on, it costs an extra 20 Soles. I said no because I wasn’t sure if it was true and even if it’s hot, it’s tolerable.

Is this really true? I’ve used Uber in the US, Argentina, Canada, Costa Rica, and Brazil and this was never the case.

Thanks in advance!