Ford to Fix Brake Issue on Hybrids

Ford logo grill AP

Last updated at 7:09 p.m. ET

Ford Motor Co. plans to fix 17,600 Mercury Milan and Ford Fusion gas-electric hybrids because of a software problem that can give drivers the impression that the brakes have failed.

The automaker says the problem occurs in transition between two braking systems and at no time are drivers without brakes.

The decision to fix the 2010 model cars came after a test driver for Consumer Reports magazine experienced the problem as he was driving a Fusion Hybrid.

Ford spokesman Said Deep says braking power seems to drop away as the car makes a transition from regenerative brakes to the conventional system. The Ford hybrids have regenerative brakes, which capture energy from braking to help recharge the battery, in addition to a conventional system that stops the car using hydraulic pressure.

Deep says Ford will notify the car owners to bring their cars in for a software fix. He said there is no safety problem with the cars. The automaker called the repairs a "customer satisfaction program" and said it was not a full-fledged recall. Deep said Ford reported the problems to a U.S. safety agency, the National Highway Traffic Safety Administration.

The move comes on the same day that NHTSA began an evaluation of braking problems on the 2010 Toyota Prius hybrid. With the Prius, antilock brakes can fail momentarily while the car transitions between its gasoline and electric motors.

Ford told dealers about a fix on Thursday. They already had the software to repair it in case it came up, Deep said.

The software fix changes the pedal feel so it doesn't drop, he said.

The cars were built before Oct. 17, 2009. For models built after that date, Ford fixed the software at the factory to change the feel of the pedal, Deep said.

Deep said Ford had received a small number of customer complaints. There has been one crash and no injuries due to the problem, he said.

NHTSA has received only one complaint, according to Deep.
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