6 speed slip?

Kyle1971 · March 17, 2023

My 2021 Silverado Custom with the L82 and 6 speed has almost 14,000 miles on it. Had fluid and filter changed at 10,000 miles….trans always acts like it slips when shifting into 3rd gear under light to moderate throttle. More noticeable when cold in morning. Not an issue under wide open throttle. Are the torque converters bad in these??

GMCustomerService · March 17, 2023

1 hour ago, Kyle1971 said:

My 2021 Silverado Custom with the L82 and 6 speed has almost 14,000 miles on it. Had fluid and filter changed at 10,000 miles….trans always acts like it slips when shifting into 3rd gear under light to moderate throttle. More noticeable when cold in morning. Not an issue under wide open throttle. Are the torque converters bad in these??

This is certainly not what we like to hear, Kyle1971. Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2021 Chevrolet Silverado. To do so, please send an email to [email protected] with ATTN: Kyle1971/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s Privacy Policy, please visit https://www.gm.com/privacy-statement.html. The information you provide may be monitored and recorded and is subject to the GM Privacy Statement.

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Bikerjon · March 18, 2023

Kyle please post about what the fix is/was for your transmission. I have almost the same truck Trailboss Custom,5.3, and 6 speed trans. I would like to know how this issue gets resolved. I am not aware of any torque converter issues on these trucks but that should affect all transmission gears.

Kyle1971 · March 18, 2023

Will do Bikerjon. GM Canada has already been made aware of my concern.

Kyle1971 · March 22, 2023

GM forwarded my concerns to GM Canada, and as they have done with our GMC Terrain, they don’t care. Wish I was still back in Florida because GM CANADA doesn’t care about it’s customers.

Bikerjon · March 22, 2023

I would take your truck to your local dealer, see the Service Manager, give him a detailed description of your situation and have him follow up with GM or GM Canada. This truck is still under the powertrain warranty and they need to get it fixed.

I still want to know what the resolution was/is.

Kyle1971 · March 22, 2023

I’ll keep you posted for sure, just real disappointed in GM CANADA; got a new GMC Terrain on same day as Silverado, and the customer service up here has been bad. I’m use to Florida and Tennessee. My local dealer is good but they seem to blow off my concerns. I’ve been a drag racer and performance enthusiast for over 35 years, so I know a “slip” when I feel it. I’ll keep you posted.

Bikerjon · March 23, 2023

Kyle don't give up and don't let them off the hook.

If you don't get satisfaction from your dealer P.M me and I will give you another method to solve your problem.

Kyle1971 · March 23, 2023

I will stay on it for sure. It’s an awesome truck! Just want it right so it lasts me. It’s not easy to keep it looking good up here, but I make sure it’s good! Anything you could suggest would be appreciated. Thank you!!