P0868 on Hyundai
Transmission Fluid Pressure Low
P0868 on Hyundai vehicles indicates transmission fluid pressure low. Au7o has documented this code across 3 Hyundai models — most commonly on Accent, Elantra, Venue. This code indicates the transmission's internal fluid pressure is reading lower than the computer expects for current operating conditions. The transmission control module uses a pressure sensor to monitor line pressure, which is what applies the clutches and bands that engage gears. When that pressure stays below the target threshold, P0868 sets. Low line pressure can cause slipping, harsh or delayed shifts, and in severe cases internal clutch damage, so it should be addressed promptly. Typical repair costs on Hyundai range from $150 to $5,500, depending on the specific model and root cause.
Common Causes of P0868
- •Low transmission fluid level
- •Worn or stuck-open pressure control solenoid
- •Internal leak (worn seals, gaskets, or valve body)
- •Faulty transmission fluid pressure sensor
- •Clogged transmission filter
- •Failing transmission (oil) pump
- •Worn or leaking valve body
- •Wiring or connector fault to the pressure sensor/solenoid
P0868 on Hyundai by Model
Hyundai Accent(1 issue)
- IVT/CVT Transmission Failure and Shudder2017-2022
The IVT (CVT) transmission in 2017+ Accent models can fail prematurely, with symptoms ranging from shuddering and slipping to complete loss of drive. The chain and pulley system wears, especially with aggressive driving or neglected fluid changes. Rebuilds are typically not cost-effective given the vehicle's value.
Hyundai Elantra(1 issue)
- IVT/CVT Transmission Failure and Power Loss2019-2023
The Smart Stream IVT (Intelligent Variable Transmission) in newer Elantras has experienced early failures, sometimes before reaching 20,000 miles. Issues include sudden power loss, check engine lights, and RPM fluctuations. Hyundai issued TSB 20-01-047H addressing transmission control module calibration issues.
Hyundai Venue(1 issue)
- IVT (CVT) Judder and Hesitation2020-2026
The Hyundai Venue uses an IVT (Intelligent Variable Transmission), which is Hyundai's version of a CVT. The IVT can exhibit judder during low-speed acceleration, hesitation when merging or passing, and a rubber-band effect during throttle changes. The transmission programming prioritizes fuel economy, causing noticeable delays between throttle input and vehicle response. Hyundai has released TCM software updates to improve responsiveness for some model years.
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What does P0868 mean on Hyundai?▼
P0868 stands for "Transmission Fluid Pressure Low." This code indicates the transmission's internal fluid pressure is reading lower than the computer expects for current operating conditions. The transmission control module uses a pressure sensor to monitor line pressure, which is what applies the clutches and bands that engage gears. When that pressure stays below the target threshold, P0868 sets. Low line pressure can cause slipping, harsh or delayed shifts, and in severe cases internal clutch damage, so it should be addressed promptly. On Hyundai specifically, this code is documented across 3 models.
What causes P0868 on Hyundai vehicles?▼
Common causes on Hyundai: Low transmission fluid level, Worn or stuck-open pressure control solenoid, Internal leak (worn seals, gaskets, or valve body), Faulty transmission fluid pressure sensor, Clogged transmission filter. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0868 on a Hyundai?▼
Repair costs on Hyundai range from $150 to $5,500, depending on the specific model and root cause.
Which Hyundai models have P0868 documented?▼
Au7o has documented P0868 on 3 Hyundai models: Accent, Elantra, Venue.