Here's what that might mean:
* Rough shifting: You might experience harsh shifts, slipping gears, or delayed engagement.
* Inability to shift into certain gears: The transmission might struggle to shift into particular gears, or it might get stuck in one gear.
* Transmission limp mode: The car might go into limp mode, restricting its performance to protect the transmission. This often means limited speed and reduced power.
* Transmission failure (potential): If the problem is left unaddressed, it could lead to more severe transmission damage.
What to do if you see P0775:
* Don't ignore it: Driving with a faulty transmission can cause further damage and expensive repairs.
* Get it diagnosed properly: While the code points to the Shift Solenoid C, a professional mechanic needs to diagnose the *cause* of the malfunction. It could be a faulty solenoid itself, a wiring problem, low transmission fluid, a problem with the valve body, or even a more serious internal transmission issue. A simple solenoid replacement might be a quick fix, or it could require a more extensive and costly repair.
* Have the transmission fluid checked: Low or dirty transmission fluid can contribute to solenoid issues.
* Get a professional repair: Attempting transmission repairs yourself is generally not recommended unless you have extensive experience. Improper repairs can worsen the problem.
In short, P0775 is a serious code. Get your vehicle to a trusted mechanic as soon as possible for diagnosis and repair to avoid further damage and ensure your safety.