Waymo says software glitch caused a driverless traffic jam in Phoenix last month

Last month, a traffic jam clogged up the streets of Downtown Phoenix during “First Friday,” and Phoenix police officers worked to shuffle the stuck vehicles out of the way, but there was a problem: No one was behind the wheel of the dozen cars causing the gridlock.

It was a likely first of its kind, a slew of driverless white Waymo Jaguars were all stopped in the same place at the same time along Roosevelt Street in Downtown Phoenix.

“There are 12 Waymos that don’t know what to do and the cops say they can’t tell them where to go,” an unidentified person says in a video posted to TikTok of the incident.

The incident happened at around 8 p.m. on April 7 at First Street and Roosevelt, according to a Waymo spokesperson …