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W&L is considering a consumer class action lawsuit against General Motors (GM) to hold the carmaker responsible for an as-yet unidentified problem causing some 2015 full-size trucks and SUVs to dangerously vibrate when driven at highway speed.

W&L believes the problem stems from a design or manufacturing defect, or both.

Any lawsuit pursued by the firm will likely seek an order on behalf of harmed motorists compelling GM to repair or replace the defective vehicles at the company’s expense.

The vehicles reported to be experiencing dangerous vibrations are 2015 models of:

  • Chevy Tahoe
  • Chevy Suburban
  • Cadillac Escalade
  • GMC Yukon

According to CBS News, the National Highway Traffic Safety Administration has fielded from owners of these vehicles complaints indicating that the dangerous vibrations occur when the truck or SUV travels at speeds of 40 to 60 mph.

GM Vehicle Vibrations Defy Diagnosis and Repair

The vibrations are strong enough that some complaining owners say they fear for their safety and that of their passengers, CBS News indicated.

Some owners also say they feel cheated after having spent a substantial sum to purchase what they expected would be a quality vehicle but instead turned out to be one that is unsafe to drive, CBS News added.

CBS News reports that some of the affected GM vehicles have defied attempts by dealership mechanics to diagnose the vibrations’ cause.

CBS quoted one frustrated owner as saying his new GMC Yukon was meticulously checked by mechanics during seven different visits to the dealership in a four-week period, all to no avail.

GM theorized that the vehicles’ vibration problems are the result of out-of-balance tires or that somehow tailpipes are resonating as engine exhaust passes through them, the news network said.

AutoGuide, a trade publication, recently reported that GM advised its dealers there might be a problem with the bond that secures the roof of the affected vehicles.

GM Hasn’t Admitted There Is A Problem

Despite the company’s theorizing, GM has yet to publicly acknowledge that the vibrations are a serious problem.

”It is a problem that puts consumers of GM products at risk of injury,” said Robin. L. Greenwald, who heads W&L’s Environmental, Toxic Tort & Consumer Protection litigation unit.

The presence of dangerous vibrations also makes it likely that purchasers of the vehicles overpaid for their vehicle or are now stuck with a vehicle that did not perform as marketed.

”We are hoping to help victimized consumers by forcing GM to fully remedy the vibration problem, but beyond that we also hope this will prod GM to change its business practices for the better,” said Ms. Greenwald.

Over the past year, GM has recalled millions of vehicles for an array of manufacturing defects.  One of those defects was a faulty ignition switch linked to the deaths of at least 124 GM owners and passengers, CBS News reported.

The faulty ignition switch causes the cars’ engines to turn off on their own while being driven — often while traveling along highways, said Ms. Greenwald.

”When the engines shut down, the vehicles suddenly lose power, which prevents safe operation of brakes and steering controls,” she explained.

W&L brought suit against GM over the faulty ignition switch problem on behalf of consumers. That case is moving forward.