General Motors is issuing a recall of over 181,000 Chevrolet HHR wagons. GM found that some of the vehicles don’t meet government standards for protecting occupants from head injury in a crash. The company said HHRs not equipped with optional roof rail-mounted airbags and sold between 2006 and 2008 failed GM’s side-impact tests. GM says the recall will begin in late March, when the parts become available. The company will send out notification letters to customers.

Owners of the affected vehicles can contact GM at 1-800-630-2438 for any additional information.