WASHINGTON — The National Highway Traffic Safety Administration has opened an investigation into an estimated 54,000 2007-'08 Mazda CX-9 SUVs after consumer complaints that the front suspension lower ball joint may separate, resulting in a loss of vehicle control.
Federal safety regulators have received six complaints.
"The reports appear to show an increasing trend," said NHTSA in its summary of the investigation. "One of the separations allegedly occurred at 40 mph and the other five incidents occurred at speeds between zero and 20 mph."
Four of the complaints are from states using road salt in the winter.
There are no accidents, injuries or fatalities linked to the probe.
A Mazda spokesman did not respond immediately to a query from Edmunds asking for reaction to the investigation.
NHTSA has opened a "preliminary evaluation" into the matter. Such an action sometimes precedes a vehicle recall.
Edmunds says: No action is necessary by owners of these vehicles at this point. But if you have an immediate concern, it's best to contact your local Mazda dealer.