"The autonomous shuttle was testing today when it was grazed by a delivery truck downtown", the post stated.
The human driver of the truck, who was backing out at the time, was cited by the Las Vegas Metropolitan Police Department for the crash, which KSNV-TV reported occurred within the first hour of the shuttle's operation.
Another AAA rep confirmed to Mashable that the shuttle wasn't damaged either, calling the accident a minor fender bender and emphasizing that the system responded exactly how it should have to prevent the incident.
The self-driven shuttle service as it hit the roads of Las Vegas.
This shuttle bus can transport up to 15 people and was aimed to be used on the city's famous strip.
A driverless shuttle bus was in a auto accident the first day the electric vehicle was being tested in Las Vegas.
"The shuttle did what it was supposed to do, in that it's sensors registered the truck and the shuttle stopped to avoid the accident", the city said in a statement.
The fully electric shuttle was designed for use by state and local governments and transit agencies and operators as an efficient, clean-energy alternative to the fossil-fuel powered vehicles of today.
But, just an hour into its year-long trial (which follows a successful stint in January) the shuttle was hit by a delivery truck that was backing up.
Nearly all the incidents recorded by Waymo, Google's autonomous vehicle arm, have been down to human drivers hitting the vehicles, and a major crash involving Uber's driverless cars in March was down to the driver of the other auto.
AAA has partnered with Keolis, the city of Las Vegas and the Regional Transportation Commission of Southern Nevada on the shuttle project, which offers free rides for up to 11 passengers as it travels a half-mile loop in the Fremont East neighborhood.
The shuttle itself is made by French company Navyo and is the first self-driving shuttle bus to be introduced in the US. Testing of the shuttle will continue during the 12-month pilot in the downtown Innovation District.