US regulators have imposed a record fine of $105m (£67.6m) on Fiat Chrysler over its failures to recall faulty vehicles.
The National Highway Traffic Safety Administration accused the auto maker of problems with the execution of 23 vehicle safety recalls covering more than 11 million defective cars.
In a statement, the NHTSA said that Fiat Chrysler had since admitted violations in three areas, "effective and timely recall remedies, notification to vehicle owners and dealers and notifications to NHTSA.
"Fiat Chrysler's pattern of poor performance put millions of its customers, and the driving public, at risk," NHTSA administrator Mark Rosekind said.
The BBC reports that as part of the deal with the regulator, Fiat Chrysler agreed to give the owners of 1.5 million vehicles the option of selling their cars back to the manufacturer.
Included were one million Jeep vehicles with rear fuel tanks that can leak and catch fire in collisions. The fault has been linked to numerous fatal accidents.
More than half a million of the cars subject to the buyback offer have faulty suspension parts that might cause a loss of control.
The recalled models covered by the agreement also include the Dodge Ram, as well as Dakota and Chrysler Aspen trucks with vehicles dating back as early as 2008.
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