P17F0 on Infiniti
Transmission Mechanical Failure
P17F0 on Infiniti vehicles indicates transmission mechanical failure. Au7o has documented this code across 2 Infiniti models — most commonly on QX55, QX60. This manufacturer-specific code (notably on Nissan/Infiniti CVT transmissions, where it is associated with 'judder') indicates the transmission control system detected a mechanical failure or abnormal internal behavior inside the transmission. On CVTs it typically reflects belt/pulley slippage or wear producing a shudder or vibration; the control module flags it as an internal mechanical fault. When the system detects this condition, P17F0 sets, often with noticeable shaking under acceleration or a hesitation that feels like a slipping transmission. It generally signals significant internal wear that needs professional diagnosis. Typical repair costs on Infiniti range from $200 to $8,000, depending on the specific model and root cause.
Common Causes of P17F0
- •Worn or slipping CVT belt and pulleys
- •Degraded or contaminated transmission fluid
- •Low transmission fluid level
- •Internal pressure control problem (valve body/solenoid)
- •Failing transmission fluid pump
- •Control software needing a reflash/recalibration
- •Excessive internal wear from age or overheating
- •Faulty transmission control module (rare)
P17F0 on Infiniti by Model
Infiniti QX55(1 issue)
- CVT (Jatco Xtronic) Shudder, Hesitation and Overheating2022-2024
The QX55 pairs the torque-rich VC-Turbo engine with a Jatco Xtronic CVT. Owners and technicians report the classic Nissan/Infiniti CVT complaints: a rubber-band or 'revving' feel where engine RPM flares without corresponding acceleration, low-speed judder/shudder while slowing to a stop, hesitation and turbo lag off the line, and overheating under sustained load. CVTs are sensitive to the engine's low-end torque, and heat plus fluid breakdown accelerate internal wear. Judder trouble codes such as P17F0/P17F1 are associated with the family.
Infiniti QX60(1 issue)
- CVT Transmission Failure2013-2020
The Jatco CVT in the QX60 is prone to premature failure, particularly in the 2013-2017 models. The transmission overheats during towing or sustained highway driving, leading to shuddering, slipping, and eventual complete failure.
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View P17F0 across all makes →Frequently Asked Questions
What does P17F0 mean on Infiniti?▼
P17F0 stands for "Transmission Mechanical Failure." This manufacturer-specific code (notably on Nissan/Infiniti CVT transmissions, where it is associated with 'judder') indicates the transmission control system detected a mechanical failure or abnormal internal behavior inside the transmission. On CVTs it typically reflects belt/pulley slippage or wear producing a shudder or vibration; the control module flags it as an internal mechanical fault. When the system detects this condition, P17F0 sets, often with noticeable shaking under acceleration or a hesitation that feels like a slipping transmission. It generally signals significant internal wear that needs professional diagnosis. On Infiniti specifically, this code is documented across 2 models.
What causes P17F0 on Infiniti vehicles?▼
Common causes on Infiniti: Worn or slipping CVT belt and pulleys, Degraded or contaminated transmission fluid, Low transmission fluid level, Internal pressure control problem (valve body/solenoid), Failing transmission fluid pump. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P17F0 on a Infiniti?▼
Repair costs on Infiniti range from $200 to $8,000, depending on the specific model and root cause.
Which Infiniti models have P17F0 documented?▼
Au7o has documented P17F0 on 2 Infiniti models: QX55, QX60.