IndyCar has made a significant policy change following a safety scare during Saturday's Sonsio Grand Prix at Indianapolis Motor Speedway, where Alexander Rossi's stalled car created a potentially hazardous situation on track.

The incident occurred on Lap 21 when Rossi's No. 20 ECR Chevrolet suddenly lost power and came to a stop on the front straightaway. While the car was positioned off the racing line, race officials initially deployed only a local yellow flag rather than a full course caution. This decision left Rossi's car stranded with oncoming traffic, sparking frustration from the driver who felt he was left in a dangerous position.

The controversy deepened as the local yellow flag allowed the pit stop window to play out, creating confusion among the leading drivers. The delay in calling a full course yellow ultimately affected race strategy and competitive balance.

In response, IndyCar officiating has implemented an immediate policy change: full course yellows will now be called based solely on safety factors rather than considering pit windows or running order. The new criteria include driver status, vehicle position and condition, safety personnel readiness, recovery access, and speed differential between stopped cars and approaching traffic.

While this move prioritizes safety - a clear positive for the sport - it does create a new competitive dynamic. Closing the pits during green flag pit stops when a caution is called will split the field, potentially giving some drivers an advantage while putting others at a strategic disadvantage.

For fans and drivers alike, this change marks a pivotal shift in how IndyCar manages race safety. The local yellow procedure remains unchanged, but the threshold for escalating to a full course yellow has been lowered. As Rossi's incident showed, even a car clearly visible to approaching drivers can create unnecessary risk when race control waits to throw the caution.

This policy adjustment reflects IndyCar's commitment to driver safety while acknowledging the delicate balance between competition and caution management in open-wheel racing.