Why does my Lexus RX 330 transmission hesitate and then jerk?

Short answer: If your RX 330 revs from a stop and the transmission catches a split second late with a jerk, check the transmission fluid first: level, color and smell. Low or burnt fluid needs attention right away. If the AT Oil Temp light comes on, the transmission is overheating. Stop and let it cool. On one RX 330 that lost its transmission after overheating, a member blamed cooling fans that weren't running. Make sure both electric fans run with the A/C on.

Symptom: When you step on the gas from a stop, the engine revs and the transmission catches a moment later with a jerk. Or after a clunk on the highway the car feels hot and the AT Oil Temp warning light comes on.

What to check first

1. Check transmission fluid level and condition. Low, dark or burnt-smelling fluid is a warning sign.
2. Have a shop scan for transmission codes.
3. Turn on the A/C and make sure both cooling fans run. The RX 330 has electric fans, not a fan clutch.
4. If the AT Oil Temp light comes on, pull over and let it cool. Don't keep driving hot.
5. Ask about a fluid service using the correct Toyota/Lexus fluid if it's overdue.

Likely causes

1. Low or worn transmission fluid. A member's first check for the 2005 car that balked from a stop.
2. Transmission overheating. The AT Oil Temp light on the second RX 330 came on before the transmission failed.
3. Cooling fan not running. A member blamed the second car's overheating symptoms on one or more electric fans not working.
4. Internal transmission wear. Possible once the delay and jerk are there, especially at high mileage.

What it usually costs

One owner said a replacement transmission cost $4,600, plus about $2,000 in related repairs. A fluid check costs little; a fan motor is a moderate repair.

Is it safe to keep driving?

A transmission that hesitates when pulling out can leave you sitting in an intersection. Avoid tight left turns into traffic until it's checked. If the AT Oil Temp light comes on, stop driving. Verify with a mechanic.

DIY or shop?

DIY for checking fluid and fans. Transmission diagnosis and repair are shop jobs.

Recalls, bulletins and complaints in plain words

• Recalls: NHTSA lists no recall for the transmission or engine on the Lexus RX 330 for these model years (checked 2026-10-27). Other recalls may exist for your car, so check your VIN at nhtsa.gov/recalls. If your car is part of a recall, the dealer fixes it for free.
• Plain words: No recall we found matches this problem, so it's a normal repair, not a free recall fix. Still run your VIN, since other recalls may be open.
• NHTSA complaints: 110 keyword-matched complaints for Lexus RX 330 2004–2006 (of 618 unique complaints queried, NHTSA complaints API by model year, queried 2026-10-27; keywords: transmission, shift, hesitation, jerk, lurch, delay, balk, slip, harsh, downshift, overheat). This counts complaints that mention these words. It is not a defect finding.

What owners report

• In 2005 Lexus RX 330 - Balks on Car Talk, an owner said the transmission balked when stepping on the gas from a stop, then caught a split second later with a jerk, which was dangerous at intersections. The engine revved first. A member said to check the fluid: low, dark or burnt-smelling fluid each point to different next steps, and the owner's manual or a dealer has the right fluid. No final fix was posted.
• In 2005 Lexus RX 330 transmission on Car Talk, an owner with 125,000 miles heard a clunk on the highway, the car felt hot, and the AT Oil Temp light came on. A fluid change didn't save it, and the transmission failed. She said a replacement cost $4,600 plus about $2,000 in related work, and the overheating returned. A member said the symptoms pointed to electric cooling fans not running and suggested checking that both run with the A/C on.

Quick tip

Heat kills automatic transmissions. If the AT Oil Temp light ever comes on, find out why before you pay for a transmission.

Vehicle focus: 2004–2006 Lexus RX 330, 3.3L V6 with the 5-speed automatic.

Safety / mechanic note

Check transmission fluid with the engine idling and the parking brake set. Hot fluid can burn you. Verify with a mechanic.