The CEO of the online gambling firm Unikrn, Rahul Sood, issued a stark warning to all Tesla drivers about Dog Mode on Wednesday after his own dog nearly sweltered to death when the system failed.

Dog Mode promises to regulate the vehicle’s temperature and also inform concerned passersby that the animal is safe through a message on the center touchscreen. However when Sood, fortunately, logged into his Tesla app to check on his vehicle he noticed that the temperature had climbed up to 85 degrees Fahrenheit (29 Celsius), leaving his dog Enzo in danger of dying from heatstroke.

“It’s hot as all hell in Seattle. Today I used dog mode and luckily I kept the app open, to my horror the car was 85 degrees and climbing!” he wrote on Twitter.