P17F2: CVT Judder (Torque Converter Inspection) (Nissan)
Severity: medium
What it means: Nissan's transmission computer has detected CVT judder (shake or shudder) and points to the torque converter, the fluid coupling between the engine and the CVT. Nissan's service manual lists the torque converter as the possible cause.
Safe to drive? Usually drivable in the short term, since Nissan's manual says the car doesn't go into a fail-safe mode for this code. The judder tends to get worse, and owners often see it alongside a CVT that's wearing out, so get it checked soon.
Common symptoms
- Shake, shudder or bumps when accelerating from a stop
- Hesitation or slipping feel at low speed
- Check-engine or transmission light on some models
Likely causes, ranked
- Torque converter faultShop
- Wider internal CVT wear found on inspectionShop
Vehicle-specific notes
- 2015–2018 Nissan Murano: A 2016 Murano owner with a CVT 'starting to go' had P17F2 as a current code. Replies said to budget for transmission work, since a cooler or fluid change won't fix a CVT already setting this code. Read the full answer · Source
DIY or shop?
Dealer or transmission shop. Nissan's procedure has the transmission removed to replace the torque converter, so this isn't a DIY job.
Before you replace parts
- Read all stored codes, including transmission codes, and note the fluid condition.
- Check your VIN for recalls, service bulletins and extended warranty coverage.
- Ask whether the repair is the torque converter alone or a valve body or full CVT, and get it in writing.
- Clear the code only after a repair, then confirm it stays off.
Safety / mechanic note
Verify with a mechanic. Severe judder or a slipping CVT can leave you without power when pulling out. A code points to a circuit or system, not always a specific part.