Fault-Code Library · Automatic transmission
P0780: Shift malfunction
The transmission controller detected a shift event that did not match the commanded gear change.
Common symptoms
- •Harsh shift
- •Flared rpm
- •Delayed engagement
- •Limp mode
Likely causes
- •Low or degraded fluid
- •Solenoid or valve-body fault
- •Clutch wear
- •Adaptation or pressure-control issue
First checks
- •Read transmission-specific subcodes
- •Log commanded versus actual gear
- •Review adaptation values and service history
Important
A generic shift malfunction needs transmission-module data before any purchase decision.
A fault code identifies a detected condition, not a failed part. Confirm manufacturer-specific subcodes and live data.
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