Drivable short-term, but fix now to avoid damage.
This code indicates the transmission control system couldn't properly complete the shift between 3rd and 4th gear. Common culprits include a failing shift solenoid, low or contaminated transmission fluid, and worn internal clutches, with wiring or control module faults also possible. Repairs can be as simple as a fluid service or solenoid swap, or as involved as internal transmission work.
$150 – $2500
Varies by vehicle and root cause.
For short trips, usually yes, but it's not a good idea long term. Shifting problems can stress the transmission and worsen quickly, so get it checked soon and avoid hard acceleration or heavy loads.
Costs vary widely. A fluid service or solenoid replacement might be a few hundred dollars, while internal repairs or a rebuild can climb past two thousand dollars depending on the damage.
Yes, it should be taken seriously. Even if the car still moves, a shift malfunction can damage the transmission over time, making it a high-priority fix.
When the transmission can't complete the shift to 4th, it may default to a safe gear or limp mode to protect itself. That's why the car can feel stuck and won't shift up properly until it's repaired.