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Ford has admitted a problem affecting braking in some of its hybrid vehicles, and offered a software fix following a wave of problems affecting Japanese rival Toyota.
The US automaker said overnight it was offering the fix to owners of 2010-model Ford Fusion Hybrids and Mercury Milan Hybrids to update software of the regenerative brake system.
A spokeswoman for Ford Australia, Sinead McAlary, said that neither model was sold in Australia.
"We have received reports that some drivers have experienced a different brake feel when the hybrid's unique regenerative brakes switch to conventional hydraulic braking," Ford said.
"While the vehicles maintain full braking capability, customers may i initially perceive the condition as loss of brakes."
Ford said the two cars' brake system "maintains full conventional brakes and full (antilock) ABS function even as the customer sees visual indicators and hears a chime".
But it said the software upgrade "will reduce unnecessary occurrences of the vehicle switching from regenerative braking to conventional hydraulic brakes."
Ford said customers with affected vehicles will receive a notice in the mail, asking them to bring in the cars to be reprogrammed at dealers at no charge.
Ford's announcement followed a review by Consumers Union, which does its own independent testing and reported a "mushy" brake feel on the Fusion.
Consumers Union said that after the electronic module "cuts out" during some braking maneuvers, "the brake pedal needs to be pushed just over an inch farther down than normal before the conventional hydraulic system applies the brakes" and that its test driver "thought he had no brakes."
