2018 Chevrolet Camaro: shudder or vibration when accelerating

Filed Aug 31, 2026 · Transmission · FL

I am writing to express my frustration and concern regarding the well documented transmission shudder issue affecting my 2018 Chevrolet Camaro LT. My vehicle currently has only 29,800 miles, yet it has begun experiencing the same symptoms described in Technical Service Bulletin (TSB) 18-NA-355. The vehicle's RPM gauge fluctuates noticeably, moving up and down while driving, and the car develops a significant shudder or vibration that can be felt throughout the vehicle. The issue is most noticeable during steady acceleration and cruising speeds. Not only does this affect the driving experience, but it also raises concerns about the long term reliability and safety of the vehicle. What is particularly troubling is that this problem has been widely reported by numerous Chevrolet owners and acknowledged by General Motors through TSB 18-NA-355. Despite the widespread nature of the defect, there has been no recall issued. As a customer, I find it difficult to understand why owners are expected to bear the financial burden of repairing a problem that appears to stem from a known manufacturing or design issue. A vehicle with fewer than 30,000 miles should not experience transmission problems of this magnitude. Many owners face costly repairs, including multiple transmission fluid exchanges, torque converter replacements, and in some cases transmission replacement. These expenses can be significant and create a negative ownership experience. General Motors has built its reputation on quality and customer loyalty, but issues like this damage consumer confidence. When customers encounter known defects and are left responsible for expensive repairs, it discourages future vehicle purchases and harms the brand's reputation. Many current owners, myself included, are reconsidering whether we would purchase another Chevrolet vehicle in the future. I respectfully request that General Motors review this issue and consider issuing a recall or extending warranty coverage for affect

Filed May 12, 2026 · TN

Transmission shudder, car was recalled in 2021. Now it’s backing doing the same thing in 2026

Filed May 3, 2025 · Body, Electrical · LA

-Convertible back window popped out on right (passenger side), seal failed. A Chevy repair shop acknowledged the recall but said they did not have technicians trained & were limiting repairs due to COVID-19. -Engine shudders, loss of power -Electrical failure of USB connections in middle console

Filed Aug 23, 2024 · Transmission · 26,530 miles · MN

The contact owns a 2018 Chevrolet Camaro. The contact stated while driving approximately 55 MPH, the transmission shuddered. No warning light was illuminated. The vehicle was not drivable and was towed to the residence. The dealer was contacted, and the contact was informed that the vehicle was not under warranty. The vehicle was towed to an independent mechanic to be diagnosed. The contact was informed that the transmission fluid needed to be flushed and refilled. The independent mechanic made the contact aware of Technical Service Bulletin Number: 18-NA-355. The vehicle was repaired. The manufacturer was made aware of the failure and confirmed that the VIN was included in Technical Service Bulletin Number: 18-NA-355. The failure mileage was approximately 26,530.

Filed Sep 2, 2022 · Electrical, Engine · CA

Engine began to shudder as if the engine wants to turn off. It can also feel as if there is some issues with the drive axles. It leads to loss of power of the engine. The loss of power goes away upon shutting the engine off and turning it back on however the check engine light remains on and the error code p0420 displays on the reader.

Filed Aug 19, 2022 · Transmission · TN

The transmission shudder from bad transmission fluid results in major loss of power and makes it unsafe to turn left on green on green ..makes me afraid to pull out knowing it might shudder and not get out of the way in time for city traffic...

Filed Apr 13, 2021 · Engine · 30,000 miles · HI

Transmission shudder. This is a common problem with this camaro. A lot of people online are experiencing the same thing. The transmission shudders when driving it. Even after servicing the fluid etc... It has to be the way they designed the transmission.