If your Cadillac, Chevrolet or GMC shakes violently while driving, General Motors may have sold you a defective vehicle.
As early as 2014, drivers noticed that their General Motors cars, trucks and SUVs are plagued with the “Chevy Shake.”
Googling “Chevy Shake” will get you over 6 million search results. The Chevy Shake occurs when Cadillac, Chevrolet or GMC vehicles shake violently while driving over 35 miles per hour. However, it can happen at speeds of or below 25 miles per hour. Class action lawsuits have named two possible causes for the Chevy Shake: the aluminum driveshaft and the 8-speed transmission.
Several drivers uploaded footage of their steering wheels shaking violently, hoping to get some answers. Since then, news outlets reported on the Chevy Shake, multiple class action lawsuits were filed, and many more Cadillac, Chevy and GMC drivers have realized they’ve been saddled with lemons.
Has your Cadillac, Chevrolet or GMC vehicle shaken or shuddered while driving? Tempted to nickname your Silverado the “Shake-arado?” If so, we recommend that you opt out in order to preserve your California Lemon Law rights. By doing so, you avoid being given a piecemeal chunk of the final settlement and can instead pursue a significant cash settlement tailored to your unique situation.
Chevy Shake FAQ
1. What vehicles have the Chevy Shake?
According to class action lawsuits, these vehicles may experience the Chevy Shake due to a faulty aluminum driveshaft and/or 8-speed transmission:
2016–2022 Chevrolet Camaro
2017–2022 Chevrolet Colorado
2014–2022 Chevrolet Silverado
2014–2022 GMC Sierra
2017–2022 GMC Canyon
2015–2019 Chevrolet Corvette
2015–2020 Cadillac Escalade
2015–2017 Cadillac Escalade ESV
2016–2019 Cadillac ATS, ATS-V, CTS, CT6 and CTS-V
2015–2022 GMC Yukon and Yukon XL
2015–2017 Yukon Denali and Denali XL
2015–2020 Chevrolet Suburban
2015–2020 Chevrolet Tahoe
If you have any of these vehicles and are experiencing the Chevy Shake, call us today at 877-222-2222 to opt out of these class action lawsuits and pursue your individual lemon claim.
2. What causes the Chevy Shake?
The class action lawsuits named two causes for the Chevy Shake: a weak aluminum driveshaft and GM’s 8L90 and 8L45 transmissions.
According to Kim v. Bostick, the aluminum driveshaft (known as a “propeller shaft” or “prop shaft”) weakens over time and eventually drops to the ground. The “prop shaft” is supposed to transfer power from the engine to the wheels, but when it falls apart, the vehicle becomes undriveable.
According to Francis v. General Motors, the Chevy Shake is caused by faulty 8-speed transmissions and/or torque converters. The hydraulic systems and gears don’t work properly because of internal issues in the 8L45 and 8L90 transmissions. The 8-speed transmissions and/or torque converters cause friction between surfaces. As a result, metal shavings circulate throughout the transmission, damaging components and leading to transmission failure.
According to Battle v. General Motors, the Hydra-Matic 8L45 and 8L90 transmissions have a “shift defect” that General Motors has not fixed. General Motors allegedly knew about the shift defect since 2013, but will not fix it until 2023 with a major redesign of the transmission.
3. Has General Motors fixed the Chevy Shake?
No. To date, General Motors hasn’t provided an adequate fix.
General Motors knew about the defect since at least 2013. When GM tested a vehicle with one of these 8-speed transmissions, the downshift was described as a “neck snapper.” Since 2015, General Motors issued at least 13 versions of a technical service bulletin. This TSB advised the dealerships to attempt these repairs:
The “clutch drive learn procedure”
Replace the valve body
Flush the cooler and cooler lines
Flush the transmission
Remove debris from and clean the transmission pan
Replace the transmission filter
Replace the transmission fluid
Replace the transmission entirely
At one point, General Motors even considered a service proposal to include valve body replacements on the 8L45 and 8L90 transmissions at $1,250, according to a class action lawsuit.
Drivers with aluminum driveshafts have had to pay for custom steel driveshafts out of pocket. Some drivers got their transmissions flushed to deal with metal shavings caused by the defect. According to one lawsuit, drivers may require replacements of the torque converter, valve body or entire transmission.
When drivers dealing with the Chevy Shake do get replacements, they receive equally defective replacement parts.
In short, General Motors left the consumers to solve the problem with the faulty driveshaft, and allegedly doesn’t plan to fix the 8-speed transmission until at least 2023.
4. How do I know if my Cadillac, Chevy or GMC vehicle is a lemon?
Your Cadillac, Chevrolet or GMC may have the Chevy Shake defect if the dealership can’t seem to fix any of these issues in your vehicle:
Shaking and shuddering
Harsh or delayed shifting
Clunks while shifting
Many drivers have reported that these defects ultimately led to transmission failure or the vehicle becoming undriveable. Of course, vehicles with the Chevy Shake defect can have other problems that won’t go away, making the vehicles unsafe to drive.
Cadillac, Chevy and GMC “Chevy Shake” Complaints
The Chevy Shake class action lawsuits show that many Cadillac, Chevrolet and GMC drivers sent complaints to federal regulators about the Chevy Shake defect. Read these complaints submitted to the National Highway Traffic Safety Administration.
Chevy Silverado Can’t Find Gears
Transmission cannot find gears when coasting or slowing down and then hitting accelerator. Very dangerous when it hesitates for seconds before finding the right gear and going, or it stays in too high of a gear instead of downshifting to accelerate and rattles. Happens every time I drive the truck, and many other people have the same issue. GM doesn’t care!
–2015 Chevrolet Silverado
Chevy Torque Converter Locks Up
The torque converter was locking up on random occasions with no warning before shifting period. [It was] very dangerous while in traffic or trying to turn. GM told me they know about this problem of course and said [to] install a new transmission with updated parts that were bad from the factory.
–2017 Chevrolet Silverado 1500
Chevy Corvette Shifts Erratically
8-speed automatic transmission always shifts erratically when starting out cold (lazy shift, slow shift, etc.) and occasionally does not downshift when car comes to a stop, only to slam hard into 1st when gas pedal is pressed to resume travel. Dealer says GM claims this is “normal,” but no car I’ve ever owned behaves like this. Appears to be fluid starvation internally.
GMC Nearly Goes Through Garage Door
Truck shifts really hard and is unpredictable. I almost drove through my garage door the other day shifting to drive from reverse. Truck will lunge forward or delay in shifting. There have been a few times I’ve had to slam on the brakes before I backed into something. I have brought it in 3-4 times for the issue and GMC won’t remedy the problem.
–2018 GMC Sierra
Chevy Shake Lemon Law Claim? How To Opt Out And Receive Your Lemon Law Reward.
If you own or lease a defective vehicle, the California Lemon Law allows you to recover cash compensation, a replacement vehicle or a lemon law buyback (a full refund of your vehicle). However, if you are in a class action lawsuit and do not opt out before the opt-out deadline, you waive your individual right to sue and are stuck with a piecemeal cut of the final settlement. Class action settlements are split up and shared with thousands of class members, and typically include small cash amounts, reimbursements for repairs (with strict limits) or slight extensions of vehicle warranties. Keep in mind that not all class members may even qualify for the final settlement.
Knight Law Group can help you get much more under the California Lemon Law. With a 99% success rate in automotive lemon law cases, we have gotten our clients record verdicts for their faulty vehicles. Our lemon law attorneys have helped California drivers get full refunds for their vehicles’ initial purchase price, and then some. The best part? You pay nothing out of pocket for our lemon law services.
If your Cadillac, Chevy or GMC is experiencing the Chevy Shake, let us help you opt out of these disadvantageous class action lawsuits and pursue an individual lemon law claim. The first step to any lemon law claim is an initial consultation. To get your free consultation today, call us at 877-222-2222. The consultation can take as little as five minutes. If we find that you are part of at least one class action lawsuit, we can help you opt out. If you are not, or if you already opted out, we can help you begin the California lemon law process.
Knight Law Group is an automotive lemon law firm that exclusively practices in California. If you are a California resident who purchased or leased a defective vehicle from a licensed dealership in California, we may be able to help you get rid of your potential lemon and recover significant cash compensation. However, we cannot help those who reside outside of California or purchased their vehicle outside of California unless they are active duty members of the Armed Forces, nor will we be able to refer those to a lemon law firm in their states. To learn more about the California Lemon Law and your legal rights, visit our California Lemon Law Guide for more information.
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We are a California lemon law firm that helps California residents who bought or leased their vehicles from a licensed dealership in California. Unless you are an active member of the Armed Forces, we cannot help you if you do not reside in California or purchased your vehicle outside of California.