WASHINGTON (Reuters) -- The National Highway Traffic Safety Administration is upgrading its investigation of 20,275 Ford Explorer Police Interceptor vehicles over sudden brake failures.
In April, NHTSA opened a preliminary investigation into reports of brake failures in the model year 2015 vehicles.
The agency is now conducting an engineering analysis, a step required before it can formally demand Ford Motor Co. issue a recall.
The Sacramento police fleet has reported seven front hose failures in five different Explorer Police Interceptor vehicles used for its emergency vehicle operation course training, according to a document filed with NHTSA.
None of the failures resulted in any crashes so far, the document said.