"I Think I'm Done": 1,200-Mile Corvette E-Ray Hits Strut Failure and P2797 Transmission Fault

A 2025 Corvette E-Ray, just three months old with only 1,200 miles, is already experiencing serious issues. It’s reportedly showing a P2797 fault tied to the auxiliary transmission fluid pump, along with multiple “Lost Communication” errors, and it had a front strut failure documented not long ago. What began as a suspension problem has quickly escalated into a mix of mechanical and electrical faults, leaving the hybrid Corvette barely drivable.

This pattern of immediate, multi-system failures on a low-mileage, high-dollar performance car points to far deeper issues than isolated manufacturing defects. When a vehicle exhibits critical drivetrain, suspension, and network communication faults within weeks of delivery, it suggests either a severe lapse in quality control or fundamental design flaws that are only now manifesting in the hands of early adopters. The implications extend beyond this single owner, casting a shadow over the E-Ray's reliability and, by extension, GM's validation processes for its halo hybrid.

“I recently posted about my 2025 E-Ray’s front strut failure, but it just got worse. I got a check engine light yesterday. Took it to the dealer to pull the codes and found all kinds of issues.

I have three major codes showing as "Failed Since DTC Cleared," and was told that they are persistent faults that return immediately after a reset. And the P2797 (Auxiliary Transmission Fluid Pump) is probably the rotational hum I’ve been hearing, which is a hardware failure, not a wheel bearing issue. On top of that, there are multiple "Lost Communication" errors.

I bought this thing brand new less than three months ago. But between a suspension failure with no parts ETA, a glove box button that doesn’t work, and these new drivetrain/network codes, I think I’m done.

Since the E-Ray is being discontinued for the Grand Sport X and there's no comparable stock in my trim, I’m pushing GM for a Substitution of Collateral into a 2026 Z06. I don’t want to deal with lemon law or getting an attorney. At this point, I just want another car. Has anyone here dealt with these "U" codes or a P2797? Any advice on forcing GM to expedite a swap instead of a "repair" on a car with network and mechanical failures?"

The owner's frustration is palpable and entirely justified. A P2797 code, indicating an issue with the auxiliary transmission fluid pump, is not a minor fault. This pump provides proper lubrication and cooling, especially in a performance hybrid like the E-Ray. 

2025 Corvette E-Ray: Hybrid Performance Under Scrutiny

• The 2025 Corvette E-Ray is Chevrolet's first hybrid Corvette, combining a 6.2-liter LT2 V8 engine with an electric motor powering the front wheels for all-wheel drive. This powertrain delivers a combined 655 horsepower, allowing for a 0-60 mph sprint in 2.5 seconds.
• The E-Ray features Magnetic Selective Ride Control 4.0 and Brembo carbon ceramic brakes as standard, making clear its performance credentials and advanced chassis technology. Its hybrid system allows for a "Stealth Mode" for electric-only driving at speeds up to 45 mph.
• The P2797 diagnostic trouble code specifically indicates an issue with the auxiliary transmission fluid pump, a component vital for the proper operation and longevity of the E-Ray's 8-speed dual-clutch transmission. This pump ensures adequate fluid pressure and cooling under various driving conditions.
• "Lost Communication" errors, often denoted by "U" codes, signal a breakdown in the vehicle's internal network (CAN bus), preventing critical electronic control modules from exchanging data. These can cause a wide range of symptoms, from intermittent warnings to complete system failures."I Think I'm Done": 1,200-Mile Corvette E-Ray Hits Strut Failure and P2797 Transmission Fault

Its failure, particularly when accompanied by a "rotational hum" that the owner initially attributed to a wheel bearing, points directly to a hard component failure within the transmission system. 

The additional "Lost Communication" (U codes) errors are equally concerning. Modern vehicles, especially hybrids with complex power management systems like the E-Ray, rely on a robust network of communication between modules. When these communication lines fail, it can lead to unpredictable behavior, false warnings, and a complete loss of critical functions. This combination of mechanical and electrical system failures on a car with only 1,200 miles suggests a deeper systemic problem, not just a random component defect.

Reddit user u/SloppyPizzaPie, responding to the owner's plea for advice, immediately suggested exploring legal options:

If you haven’t already, I suggest starting to get familiar with your state’s lemon law. Lemon laws by state vary, and I doubt this would qualify as a lemon quite yet, but it’s definitely worth looking into.

This advice, while pragmatic, shows the unfortunate reality facing owners of new, problem-plagued vehicles. Lemon laws exist for a reason, but no C8 owner should have to consider them for a car that has barely left the dealership.

The owner, u/apolloscrate, confirmed they had already looked into the lemon law process, stating:

Yeah, I looked, and it’s 3 repair attempts. And I have 3 ROs for the rear sound. But I just don’t want to go through the hassle of having the car bought back and then having to go purchase another one. That’s a month-long fiasco.

This is where the real-world impact of these failures becomes clear. The owner already has three repair orders for a "rear sound," which, in retrospect, may have been an early symptom of the P2797 transmission pump issue. The prospect of a prolonged, bureaucratic lemon law process is precisely what manufacturers should be trying to avoid. 

The owner's desire for a direct swap into a 2026 Z06, rather than enduring a drawn-out legal battle or repeated repairs on a compromised vehicle, is entirely reasonable. This is an owner seeking relief from a demonstrably faulty product. The E-Ray's reported discontinuation for a "Grand Sport X" model further complicates matters, suggesting GM itself may be acknowledging issues or shifting its product strategy, leaving early adopters in a potentially vulnerable position regarding parts availability or long-term support.

Image Sources: Chevrolet Media Center
 

About The Author

Noah Washington is an automotive journalist based in Atlanta, Georgia, covering sports cars, luxury vehicles, and performance culture. His reporting focuses on explaining the engineering, design philosophy, and real-world ownership experience behind modern vehicles.

Noah has been immersed in the automotive world since his early teens, attending industry events and following the enthusiast communities that shape how cars are built and driven today. His work blends industry insight with enthusiastic storytelling, helping readers understand not just what a car is, but why it matters.

Noah is also a member of the Southeast Automotive Media Association (SAMA), a professional organization for automotive journalists and industry media in the Southeast. 

His coverage regularly explores sports cars, luxury vehicles, and performance-driven segments of the automotive industry, including the evolving culture surrounding Formula Drift and enthusiast builds.

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