P0733 — Gear 2 Incorrect Ratio
Drivable short-term, but fix now to avoid damage.
What P0733 means
This code means the transmission's actual gear ratio in second gear doesn't match what the computer expects, usually a sign of slipping. It's often caused by low or degraded transmission fluid, worn clutches or bands, or a failing solenoid. Catching it early sometimes allows a fluid service or solenoid fix before more serious internal repairs are needed.
Common symptoms
- Check engine light is on
- Transmission slips in second gear
- Harsh or delayed shifting
- Engine revs without matching acceleration
- Vehicle may enter limp mode
Common causes
- Low or degraded transmission fluid
- Worn clutches or bands
- Faulty shift solenoid
- Clogged or dirty valve body
- Internal mechanical wear in the transmission
Typical repair cost
$200 – $2500
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0733 code?
Short trips are usually possible, but it's not a good idea long term. Slipping in second gear can overheat and damage the transmission, so limit driving and get it checked soon.
How much does it cost to fix a P0733 code?
It ranges widely. A fluid service or solenoid replacement may cost $200 to $600, but internal clutch or band repairs can run $1,500 to $2,500 or more depending on the transmission.
Is a P0733 code serious?
Yes, it can be. It signals the transmission is slipping in second gear, and ignoring it risks expensive internal damage, so it deserves prompt attention.
Could low transmission fluid cause a P0733 code?
Absolutely. Low or worn-out fluid is one of the most common and cheapest causes, so checking and servicing the fluid is often the first step in diagnosis.