Mazda recently released a statement following a report from the National Highway Traffic Safety Administration pertaining to the recall on the 2019 CX-9.
According to the statement, a rubber compound meant exclusively for prototype tire production got mixed in with production rubber used for the current generation of the Mazda CX-9. With the two different compounds getting combined together, 146 units of the CX-9 model were rolled out of the factory with compromised tires.
CX-9 models with the substandard tires may see the rubber separate from the tread, possibly causing instability while driving. There is also a likelihood of sudden loss of control that increases the risk of a crash. Drivers may hear flapping or a vibration prior to the occurrence of any issue. And even if the rubber does not separate, there is still a possibility for the tires to experience strange tire wear due to the mixing of the two compounds.
Mazda, however, clarified it has not received any reports of crashes or injuries relating to the issue. The NHTSA is also yet to release additional details on the recall.
As of writing, Mazda is yet to announce how it plans to fix the problem, but it is likely that the compromised tires are due for replacement with a new set of tires that have the correct rubber compound. The automaker is expected to release further information on how affected owners should proceed.