Shift Error
What it means
P0780 means the transmission control module detected that a commanded gear shift didn't happen correctly. It's a general shift-malfunction code, so the actual cause is usually named by a companion code — a specific shift solenoid, a gear-ratio fault, or a hydraulic issue. Symptoms range from harsh or delayed shifts to being stuck in a single limp-mode gear.
Can I keep driving? The transmission may shift poorly or lock into limp mode — drivable short-term, but diagnose it soon since it usually points to a deeper shift fault.
Real-world scan data
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Poor shifting or no shifting
- Harsh shifts or shift delays
- Stuck in one gear (limp mode)
- Check-engine light on
Common causes
Most likely first
- Failing shift solenoid(s)Likely
- Low or dirty transmission fluidCommon
- Worn friction elements / clutch packsCommon
- Stuck or worn valve bodyLess often
- Wiring faults or a failed transmission control module (TCM)Less often
How to diagnose & fix
Work through it in order
- Scan for companion codes (specific solenoid or gear-ratio faults) — they usually pinpoint the real cause.
- Check transmission fluid level and condition.
- Inspect the shift solenoids and valve body.
- If gear-ratio codes are present, evaluate the clutch packs and friction elements.
- Repair the underlying fault, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0780?+
Can I just clear P0780?+
Related codes
Read & clear P0780 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.