Drive with caution — fix soon.
P0751 means the transmission control module has detected that shift solenoid "A" is stuck off or not performing as expected. This solenoid helps control the flow of transmission fluid that engages specific gears. When it sticks, the transmission may not shift correctly, leading to hard shifts or being stuck in one gear.
$150 – $500
Varies by vehicle and root cause.
For short trips, usually yes, but you shouldn't rely on it. The transmission may shift hard or stay stuck in one gear, which can wear down internal parts. Get it checked soon and avoid towing or long highway drives.
Repairs typically range from about $150 to $500. A simple fluid service or wiring fix is on the lower end, while replacing the shift solenoid or valve body work costs more.
It's a moderate concern. It won't usually leave you stranded right away, but ignoring it can lead to more expensive transmission damage, so it's best to address it promptly.
It controls the flow of transmission fluid that engages certain gears. When it sticks off, your transmission can't shift properly, which is why you may feel it stuck in gear or shifting roughly.