The company will voluntarily recall about 9,400 of the vehicles to update their electronic stability control software. Known as VSC, the system helps control the SUV during a loss of traction that can occur as a result of front or rear wheel slippage during cornering.
"Our engineers have conducted tests to confirm the VSC performance issue raised by Consumer Reports, and we are confident this VSC software update addresses the concern," said Steve St. Angelo, Toyota chief quality officer for North America in the statement.
Toyota said owners of affected models will begin receiving notices in early May. The company will provide loaners to vehicle owners who don't wish to drive them before the recall work has been completed.
The recall follows a report last week by Consumer Reports magazine, which discovered in road tests that the GX 460 could roll over during certain maneuvers, such as decelerating onto a highway exit ramp. The nonprofit publication determined the problem was severe enough to warrant a "don't buy" warning, its first such rating on a vehicle in almost a decade.
When subjected to a standard track test involving driving the vehicle through a turn as the driver lifts his foot off the accelerator, the rear of the GX 460 slid out until it was almost sideways before the electronic stability control system was able to regain control, Consumer Reports said last week. In a real world situation, such a control failure might cause the the vehicle to hit a curb or the side of the road, leading it to flip over.
After Consumer Reports published its findings on April 13, Toyota halted sales and production of the GX 460 and began its own tests. On Friday, Toyota said it had duplicated the problem that Consumer Reports encountered with the vehicle's electronic stability control system.
Toyota has struggled with quality and safety issues in recent months. It recalled millions of vehicles last fall for uncontrolled acceleration problems believed to be associated with bulky rubber floor mats. Other recalls soon followed, including one for sticky gas pedals, which led to the National Highway Traffic Safety Administration fining Toyota a maximum $16.4 million for failing to act quickly enough in notifying the agency of the problem.
On Monday, Toyota agreed to pay the fine, but denied any wrongdoing. Toyota said that while executives could have done a better job of sharing information, both within and outside the company, "We did not try to hide a defect to avoid dealing with a safety problem."
Also See: 34,000 Vehicles Affected Worldwide