WASHINGTON — Fiat-Chrysler US is recalling 65,760 2015-'16 Ram 1500 pickup trucks because they may have been built with rear axles that were incorrectly heat-treated, according to the National Highway Traffic Safety Administration.
"If the rear axle shaft was not properly heat-treated, it may fracture and a wheel separation could occur, increasing the risk of a crash," NHTSA said in its recall summary.
The problem may contribute to increased wear and overheating sufficient to illuminate the vehicle's antilock brake system warning light, Fiat-Chrysler said.
The company said most of the trucks are in dealer hands. Fiat-Chrysler is aware of a single potentially related accident, but no injuries, it said in a statement.
Affected Ram 1500 trucks were built from June 17, 2015 to September 28, 2015.
The problem was discovered through an internal investigation.
Edmunds says: Customers who observe an antilock brake system warning light or any other concern should contact their dealers now. Others should wait for their official recall notice and then schedule a service appointment.