P0868 on Infiniti: How to Diagnose & Fix
P0868 — Infiniti-specific definition
2 Infiniti models · 2 documented issues · 2 critical · $200-$8,000 repair
P0868 on Infiniti by model: symptoms, diagnosis and fix
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.
Common Symptoms
- Engine RPM flares without acceleration (rubber-band feel)
- Shudder/judder when slowing to a stop
- Hesitation or turbo lag from a stop
- Whining or droning noise
- Harsh or delayed engagement
- Overheating / limp mode under load
How to Fix
Start with a genuine Nissan NS-3 CVT fluid exchange and check for leaks or low fluid; heat is the primary enemy. A dealer scan for judder codes can call for a valve-body/pressure recalibration or valve-body replacement. Severe cases require a CVT rebuild or replacement. Frequent fluid checks and an auxiliary cooler help; avoid heavy towing.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Infiniti/Nissan NS-3 CVT fluidOEM999MP-CSHNS3 superseding 999MP-CV0NS3 / 999MP-NS300P
Confirm the exact QX55 model-year fluid specification, current container SKU, sealed product, order/pack quantity and measured refill amount.
- Genuine Infiniti QX55 CVT control-valve oil filterOEM31726-28X0A
Confirm VIN/current supersession for 2023-2025 before ordering.
- Genuine Infiniti QX55 CVT pan oil strainerOEM31728-28X0A
Confirm VIN/current supersession for 2023-2025 and separately order the exact pan gasket, drain washer and re
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (3)
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.
Common Symptoms
- Transmission shuddering at highway speeds
- Loss of power during acceleration
- Whining noise from transmission
- CVT overheating warning
How to Fix
Replace CVT fluid every 30,000 miles instead of the recommended 60,000. Add an auxiliary transmission cooler for towing. A class-action settlement extended the transmission warranty by 24 months/24,000 miles on 2013-2014 JX35/QX60 models, and Infiniti extended powertrain coverage on 2015-2018 QX60 models from 72 months/70,000 miles to 96 months/96,000 miles.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Infiniti/Nissan NS-3 CVT fluidOEM999MP-CSHNS3 superseding 999MP-CV0NS3 / 999MP-NS300P
Confirm the exact 2014-2020 QX60 model-year/transmission specification, sealed container, current SKU, pack/order quantity an
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (5)
- CarComplaints: Nissan Pathfinder and Infiniti QX60 Transmission Lawsuit Almost Settledother
- InfinitiQX60.org: CVT Settlementforum
- Top Class Actions: Nissan, Infiniti Transmission Defect Class Action Settlementmedia
- ClassAction.org: Nissan Hit with Class Action Over Alleged Transmission Defect (2019-2021 Pathfinder, Infiniti QX60)media
- BBB AUTO LINE: Nissan/Infiniti CVT program (2015-2018 QX60 powertrain warranty 96 months/96,000 miles)other
P0868 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0868 mean on a Infiniti?
On Infiniti, P0868: On Nissan/Infiniti CVTs, P0868 is CONSULT 'SEC/PRESS DOWN': secondary fluid pressure too low compared with the commanded value while driving. Possible causes are pressure control solenoid valve B (secondary pressure solenoid), transmission fluid pressure sensor A (secondary pressure sensor) and the line pressure control system. Source: Nissan service manual excerpt, https://manuals.autorepairshq.com/Nissan-Datsun/2012/Sentra%20L4-2.0L%20%28MR20DE%29/Repair%20and%20Diagnosis/A%20L%20L%20%20Diagnostic%20Trouble%20Codes%20%28%20DTC%20%29/Testing%20and%20Inspection/P%20Code%20Charts/P0868 On Infiniti it is documented across 2 models: QX55, QX60.
How much does it cost to fix P0868 on a Infiniti?
Published repair estimates on Infiniti range from $200 to $8,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.