GM has always lead the style in technology with the evolution of their transmissions by adding additional gears. The increase of gears from the original 3 and 4 speed transmissions to the GM eight speed transmissions was to benefit the emission standard and increase fuel efficiency. The introduction of the GM viii speed transmissions has resulted in defects of shuddering or banging of the transmissions. Since the introduction of the GM 8 speed manual millions of cars and trucks are on the road experiencing transmission defects which render them unsafe and may be deemed lemons under the lemon law and or federal warranty act.

What Is the GM 8 Speed Manual

GM developed the eight speed transmissions, GM 8L90 and 8L45, to supervene upon the 6 speed transmissions and introduced them in the following:

  1. The 8L90 GM 8 Speed Transmission was used in 2014 to the Chevrolet Silverado / GMC Sierra pickup trucks too every bit the Corvette and Camaro cars. In addition, the 8 speed GM manual was used in the Cadillac models.
  2. The 8L45 was introduced in 2016 and was a lighter transmission for a V6 engine such equally the Chevy Colorado truck, Chevy Camaro, Cadillac CT6.
    The benefit of having a GM 8 speed transmission resulted in a 10 percent better gas mileage due to the manual staying in the ameliorate RPM power band and not shifting into a more gas consuming gear compared to the older six speed transmission which was replaced.

Causes of Transmission Problems In the GM 8 Speed Transmission

The GM 8L90 and its lighter manual the GM 8L45, have resulted in the following complaints by Chevy and GM owners:

  • Shudder
  • Slow or no response
  • Leaks and puddles under your car
  • Warning lights on your nuance
  • Grinding or clunking noises

GM is enlightened of the problems with the 8 speed GM transmission and has issued several bulletins to address the complaints. A re-create the GM service bulletin 18-NA-355 can exist seen online. GM has attempted to correct the shudder on the viii speed GM transmission by doing a manual fluid service past replacing the original transmission fluid with a lower viscosity fluid. Some owners have found that replacement of transmission fluid has helped the shudder still many owners still experience the defect with the 8 speed GM manual and have not been corrected or repaired.

GM 8 Transmission Problems and List Cars Affected

The full listing of affected 8 Speed GM Transmission vehicles are below:

  • 2015-2019 Cadillac Escalade/Cadillac Escalade ESV
  • 2016-2019 Cadillac ATS
  • 2016-2019 Cadillac ATS-Five
  • 2016-2019 Cadillac CTS
  • 2016-2019 Cadillac CTS-V
  • 2016-2019 Cadillac CT6
  • 2015-2019 Chevrolet Silverado
  • 2017-2019 Chevrolet Colorado
  • 2015-2019 Chevrolet Corvette
  • 2016-2019 Chevrolet Camaro
  • 2017-2019 GMC Canyon
  • 2015-2019 GMC Sierra
  • 2015-2019 GMC Yukon/Yukon XL

Lemon Constabulary Data for your eight Speed GM Manual

If your Chevy or GM truck or auto is experiencing defects due to the GM 8 Speed Transmission brand sure you empathize your lemon law rights and what you should do if you lot take a lemon.

If y'all're driving a lemon, let David J. Gorberg & Associates help you lot. We're PA Lemon Law, NJ Lemon Law, and NY Lemon Police force experts. Y'all don't need to accept GM on past yourself, let us exercise it for y'all!

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