Drivable short-term, but fix now to avoid damage.
This code means the transmission control module detected that shift solenoid B isn't working as expected, which interferes with proper gear engagement. It's commonly caused by a failed solenoid, electrical problems in its circuit, or dirty transmission fluid clogging the valve. Repairs typically involve testing the solenoid and circuit, replacing the solenoid, and sometimes servicing the fluid.
$150 – $650
Varies by vehicle and root cause.
For short trips you usually can, but it's not advisable. The transmission may shift roughly or drop into limp mode, and prolonged driving risks further damage. Have it diagnosed promptly.
Repairs generally range from $150 to $650, depending on whether it's a simple solenoid swap or involves wiring repair and valve body work.
Yes, it should be taken seriously. A malfunctioning shift solenoid can leave you stuck in one gear and, if neglected, cause more extensive transmission damage.
Shift solenoid B is an electrically operated valve that routes transmission fluid to engage specific gear changes. When it malfunctions, the transmission can't shift correctly, triggering this code.