The automaker General Motors (GM) announced on Wednesday the call for review of 3.46 million pickup trucks and SUV SUVs due to a serious problem with the brake system, which has already caused 113 accidents and injuries to 13 people .
GM warned the federal authorities that a defect in the vacuum pump of the brake system causes the loss of efficiency over time, which means that the driver has to apply a greater force on the brake pedal, to the time increasing the distance required to stop the vehicle.
GM said the defect increases the risk of an accident and that, in fact, it has received notifications of 113 incidents related to the problem.
The manufacturer had not taken action in the US. so far, despite the fact that the National Administration for Road Safety (NHTSA) began investigating the defect in November 2018 after receiving reports of nine accidents and two injuries.
In addition, in June, GM Canada called for a review of 310,000 vehicles for the same problem.
The cars affected by the call for review in the United States are the Cadillac Escalade, Chevrolet Silverado, Suburban and Tahoe models, as well as the GMC Sierra and Yukon, all of them from 2014 to 2018.
Not all vehicles of those models and years are affected by the problem: GM said it has used vacuum pumps of another design that have not given problems.
GM informed NHTSA that the company's dealers will reprogram the electronic braking control module to solve the problem, although the company has not indicated when repairs will be made.
The change in the software "will improve the way the system uses the hydraulic brake assist function when vacuum assistance is exhausted," GM told NHTSA.
GM also reported today that it will call for review 117,000 units of the Chevrolet Malibu of the year 2018 due to problems in fuel injectors.
The electronic engine control module of these vehicles, equipped with 1.5-liter turbo engines, may experience a software error that results in the disconnection of the fuel injectors.
In that case, the engines may stop running or not start.
In addition, the company will call for review 91,000 Chevrolet Express and GMC Savana vans in 2019 due to a problem with the indicator light that alerts about the safety belt situation.
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