Volvo's self-driving technology is struggling to identify kangaroos in the road.
The Swedish car-maker's 2017 S90 and XC90 models use its Large Animal Detection system to monitor the road for deer, elk and caribou.
But the way kangaroos move confuses it.
"We've noticed with the kangaroo being in mid-flight when it's in the air, it actually looks like it's further away, then it lands and it looks closer," its Australia technical manager told ABC.
But the problem would not delay the rollout of driverless cars in the country, David Pickett added.