Mazda is recalling 42,000 3 sedans because their air bags might not deploy, the National Highway Traffic Safety Administration reportedly said.

Associated Press (AP) said the recall involves vehicles from the 2004 model year, the first year the 3 was available, though Mazda spokesman Jeremy Barnes said the company had no reports of injuries due to the defect.

Mazda reportedly found that on some vehicles, the housing for the air bag sensor can crack and allow water to seep in. Should that happen, a short circuit would cause the air bag warning light to go on and the air bag might not fire.

Barnes reportedly said Mazda plans to notify customers of the defect soon. Owners can get their vehicles repaired for free starting next month, NHTSA told AP.