What does code P0730 mean and is it safe to drive?
P0730: Incorrect Gear Ratio. Here’s what it means, what usually causes it, what repairs typically cost, and how urgent it is to keep driving.
PowertrainDrive with caution
Repair cost
$200–$4000
System
Powertrain
Urgency
high
What this code means
The transmission control module has detected that the actual gear ratio does not match the commanded gear, indicating a slipping or internal transmission issue.
Common causes
- Low or burnt transmission fluid
- Internal clutch or band wear
- Faulty shift solenoids
Symptoms
- Check Engine Light or transmission warning light
- Harsh shifts, slipping, or delayed engagement
- Limp mode in some vehicles
Typical fixes
- Check and service transmission fluid
- Replace faulty solenoids or valve body
- Overhaul or replace transmission if internal damage is severe
Repair cost range
Repairs for P0730 often fall between $200 and $4000, depending on the cause and your vehicle.