P0730High urgency
Incorrect Gear Ratio
Transmission · Gear Control
⛔ Fix promptly — transmission damage likely occurring.
What this means
The transmission is not achieving the expected gear ratio. Indicates slipping clutch packs, worn bands, or solenoid failures.
Likely causes
- Worn or slipping clutch packsMost common
- Faulty transmission solenoidMost common
- Low or degraded transmission fluidCommon
Estimated repair cost
Transmission fluid + filter service$100 – $300
Solenoid replacement$200 – $600
Transmission rebuild$2,000 – $5,000
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Frequently asked questions
What does P0730 mean?
The transmission is not achieving the expected gear ratio. Indicates slipping clutch packs, worn bands, or solenoid failures.
Is P0730 serious?
Fix promptly — transmission damage likely occurring.
How much does it cost to fix P0730?
Repair costs for P0730 range from $100 – $300 depending on the root cause and your vehicle.
Can I drive with P0730?
No — this code indicates a serious issue. Stop driving and have the vehicle inspected immediately.