Drivable short-term, but fix now to avoid damage.
This code means the transmission computer detected that shift solenoid E appears stuck in the on or applied position, so it keeps directing fluid when it shouldn't. It usually points to a stuck or clogged solenoid, dirty transmission fluid, or valve body and wiring problems. It's commonly fixed by replacing the solenoid and servicing the fluid, and most repairs don't require a full transmission rebuild.
$250 – $800
Varies by vehicle and root cause.
For short trips, usually yes, but you shouldn't rely on it. A solenoid stuck on can cause harsh shifts or limp mode and added transmission wear, so have it checked as soon as you can.
Most repairs run between about $250 and $800, depending on whether you only need a solenoid replacement and fluid service or also valve body or wiring work.
It can be. The car may still move, but a stuck solenoid affects shifting and can lead to costlier damage if ignored, so it's best to address it promptly.
P0775 generally means solenoid E isn't performing or is stuck off, while P0776 means it's stuck on. Both affect shifting, but they describe opposite failure modes of the same solenoid.