#faultytransmissions

Owners of hundreds of thousands of GM vehicles from Cadillac, Chevrolet, and GMC recently got the go-ahead for a class-action lawsuit against the automaker. The suit alleges that GM knowingly sold the vehicles with faulty transmissions in 26 states.

Affected vehicles include models equipped with 8L45 or 8L90 eight-speed automatic gearboxes between the 2015 and 2019 model years. Owners said their vehicles shuddered and shook in higher gears, and some said there was lurching and hesitation at lower speeds, even after the vehicles had been seen by a technician. The group also said dealers told them the hard shifts and other sensations were normal.