Ambulance Victoria would not comment on the latest case, but has issued repeated warnings against leaving children in cars.
In the first five weeks of the year, paramedics were called to 200 cases.
Ambulance Victoria group manager Brett Drummond has said it is frustrating the message is not getting through.
"It's never OK to leave a child in a car, no exceptions, no excuses," he said on February 6.
The state government has promised to increase penalties for leaving children in hot cars, with fines up to $3700 and jail time increased from three months to six months.
- AAP
