2018 Chevrolet Camaro

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

I lose power steering randomly. When this occurs I get a service rear diff message on my dash, the fan motor cuts out, and gauges like the speedometer and tachometer go to zero. I took it to a dealer because I saw there was a recall for the exact problem I'm having with power steering, but I guess it's VIN specific and my car is not included in the recall. They also told me they couldn't get it to reproduce the symptoms I was talking about but after I left 10 minutes later it did it in a Walmart parking lot. I got it on video. This has caused one almost serious accident and multiple minor ones, and I can't afford the expensive dealer diagnostic fee and repair. I don't feel safe driving with it. I'm confused why I have the same make model and year of the recall but mine's not included. I called GM and the lady I talked to just kept repeating how my van wasn't included in the VIN specific group, and offered no help other than to go to a dealer and pay them to fix the same problem that is covered by other cars of the same year, make, and model. I asked her if it was possible that maybe their VIN groups should be expanded, especially because it's an 8 year old car and the recall just happened like 6 months ago, so maybe they didnt have all the data or info when they made the group of effected vehicles, and she hung up on me. Please help.

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.

Car feels like you are driving over rumble strips when the road is clearly smooth. Tried buying new tires and nothing would fix it. Then looked online and found many thousands of people having same issue that has affected all gm 8 speed transmissions for several years. There is a TSB (Technical Service Bulletin) 18-NA-355 on it due to how many people have had this issue. It explains that GM was using fluid that had water issues in it causing all these issues and that the fix is to have it flushed out and replaced with something better. GM was replacing the fluid themselves on unsold vehicles but any that were sold are apparently on their own as they want well over $600 to replace the fluid due to their incompetence. I get that things happen but companies should own up to their mistakes and just fix them. Not asking for anything special just fix your mistake and call it good. Called them and they just want to give a generic response of "you should get that looked at and fixed". Have been a large family of GM only vehicles but we have bought our last one.

I’ve been experiencing my acceleration and brake pedal engaging without my intervention. While driving , a sudden unintended acceleration will occur followed by the brakes engaging by itself. With the sudden acceleration, fail to accelerate, & delay stopping, all of these factors can cause danger to both the passengers in the car, including myself & others on the road around me which is a very big safety issue. In addition , with the problems i was experiencing & engine light being on my display i took the vehicle to be inspected by Don Mealey Chevrolet in Clermont, Florida 347811 on March 31st 2023 . The DTCs Read showed Active, failure code0x00: P0700 Transmission Control System(MIL Request).

Since I’ve purchased this vehicle I have been having issues with the transmission and engine providing the accurate amount of power as it relates to the acceleration. The persistent issue is the gear shifting lags and rumbles my vehicle each time I accelerate up a hill, accelerating from g20-30mph and it rumbles the gear. I was told the diagnosis was with the spark plugs having an issue on multiple occasions. I’ve changed the spark plugs several times along with maintaining everything else within the vehicle. This problem still persist. In 2019 my vehicle stopped on the road and the issue pointed to the computer module. I got the module replaced but the problem still persisted. This is unacceptable and there needs to be an investigation done as my car has shut down due to this issue, lost power in mid-traffic and who knows what else issues this is causing. If there is not proper function in this area then it will be detrimental to the safety of the driver. I also have records of my visits at the dealer as I brought this to their attention but was brushed off as it being a spark plug issue.

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.

ON OR ABOUT NOVEMBER 26, 2020, AT 1:30 AM WHILE DRIVING ON I-30 WESTBOUND IN TEXARKANA, TX TRAVELING AT THE POSTED SPEED OF 75 MPH IN A 2018 CAMARO ZL1. THE TRANSMISSION BLEW OUT WHILE IN CRUISE CONTROL AND ALL SYSTEMS THAT TRANSMIT POWER FROM THE ENGINE OR PROPULSION DEVICE TO THE WHEELS WERE LOST AND THE VEHICLE HAD TO COAST ONTO THE EMERGENCY SHOULDER UNTIL IT CAME TO A COMPLETE STOP AWAY FROM ONCOMING TRAFFIC. I HAD CONTACTED CHEVY EMERGENCY ROADSIDE ASSISTANCE THROUGH THE VEHICLES ONSTAR AND THIS SERVICE WAS OF NO AVAIL. AS AN ALTERNATIVE I HAD TO UTILIZE TRIPLE A IN ORDER TO HAVE THE VEHICLE TOWED TO ORR CHEVROLET SERVICE DEPARTMENT TEXARKANA, TX THIS VEHICLE SERIES HAS THE TR6060 TRANSMISSION IS FOR 6 SPEED MANUALS WHICH IS MANUFACTURED BY TREMEC CONTAINS DEVICES AND SYSTEMS THAT TRANSMIT POWER FROM THE ENGINE OR PROPULSION DEVICE TO THE WHEELS. THEREFORE, WHEN SHIFTING BETWEEN NEUTRAL, 1ST - 2ND GEAR AND BACK TO NEUTRAL ENCOUNTERED NUMEROUS EVENTS WHEREIN THE SHIFTING MECHANISM GRINDS AND/OR DROPS BACK INTO NEUTRAL WHILE THE VEHICLE IS IN MOTION, WITH NOTABLE FLUTTERING OF THE SHIFTER AND RUBBING OR FRICTION NOISE THIS IS ASSOCIATED WITH THE SYNCHRONIZERS. THE THIS IS EXTREMELY DANGEROUS WHEN PULLING IN TRAFFIC AND OPERATING A VEHICLE IN THIS MANNER IS ONLY A MATTER OF TIME BEFORE A MAJOR ACCIDENT ENSUES. CONSUMERS SIMILARLY COMPLAINED ABOUT THE DEFECT ON VARIOUS ONLINE FORUMS, HTTPS://WWW.CAMARO5.COM/FORUMS/SHOWTHREAD.PHP?T=199040 HTTPS://WWW.CAMARO5.COM/FORUMS/SHOWTHREAD.PHP?T=261882&PAGE=2 HTTPS://WWW.CAMARO5.COM/FORUMS/SHOWTHREAD.PHP?P=4415830&POSTED=1#POST4415830 HTTPS://WWW.CAMARO5.COM/FORUMS/SHOWTHREAD.PHP?T=199533