Car dealerships across North America continue to wrestle with disruptions that started last week. CDK Global, a company that provides software for thousands of auto dealers in the U.S. and Canada, was hit by back-to-back cyberattacks on Wednesday.

Car dealerships in North America continue to wrestle with major disruptions that started last week with cyberattacks on a software company used widely in the auto retail sales sector.

CDK Global, a company that provides software for thousands of auto dealers in the U.S. and Canada, was hit by back-to-back cyberattacks Wednesday. That led to an outage that has continued to impact operations.

For prospective car buyers, that may mean delays at dealerships or vehicle orders written up by hand, with no immediate end in sight.

On Monday, Group 1 Automotive Inc., a $4 billion automotive retailers, said that it continued to use “alternative processes” to sell cars to its customers.