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GM faces possible class action lawsuit over 8-speed transmission

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General Motors

has been hit with a class-action lawsuit from owners who allege the eight-speed automatic transmission found in several rear-wheel-drive

Chevrolet

,

Cadillac

and

GMC

models between the 2015 and 2019 model years has a defect that causes the vehicles to hesitate and jerk when accelerating or slowing down. The lawsuit was

posted to ClassAction.org

and spotted by

GM Authority

.

Problems with

GM’s

Hydra-Matic 8L90 and 8L45 transmissions have been

well-documented

on Internet forums and via complaints filed with the National Highway Traffic Safety Administration, with many reporting damage to their vehicles. The lawsuit was first filed in December in U.S. District Court for the Southern District of Florida but appears to have been transferred recently to New York.

Autoblog

sought comment from Theodore Leopold, the lead attorney for the plaintiffs.

“These transmissions have a common defect,” the

complaint reads

. “Drivers attempting to accelerate or decelerate their cars feel a hesitation, followed by a significant shake, shudder, jerk, clunk, or ‘hard shift’ when the vehicle’s automatic transmission changes gears.” The problem also occurs when the vehicles accelerate in a single gear, without shifting, the plaintiffs allege. “Drivers have reported that the shift is sometimes so violent, they feel as though they have been hit by another vehicle.”

The problem is believed to center on the transmission, torque converter or both. The complaint says it causes undue friction, causing hydraulic systems and gears to function improperly and sometimes leaves metal shavings throughout the transmission, leading to costly

repairs

and replacement of parts or the entire transmission. It says GM has known about the problems since shortly after it introduced the transmissions, and has issued 13 technical service bulletins, none of which have resolved the problem.

GM declined to comment on the lawsuit.

The plaintiffs say GM should have warned consumers about the issues and covered repairs under each vehicle’s three-year/36,000-mile bumper-to-bumper

warranty

. They’re seeking statewide classes in at least six states: California, Florida, Illinois, New York, Oklahoma and Texas.

The affected vehicles and model years are as follows:

Have you experienced a similar issue with one of the above listed vehicles? Tell us about it in the comment section below.

from Autoblog http://bit.ly/2W6oVUx