P0894 on Hyundai
Transmission Component Slipping
P0894 on Hyundai vehicles indicates transmission component slipping. Au7o has documented this code across 1 Hyundai model — most commonly on Sonata. This generic transmission code means the PCM/TCM detected that a rotating component inside the transmission is slipping, by comparing input and output speeds and finding more difference than there should be for the commanded gear. Slippage indicates clutches or bands are not holding properly, which can quickly worsen and damage the transmission through overheating and accelerated wear. It often comes with rough or flaring shifts, reduced power, and overheating, and should be addressed promptly. Typical repair costs on Hyundai range from $600 to $4,500, depending on the specific model and root cause.
Common Causes of P0894
- •Low, dirty, or burnt transmission fluid
- •Worn clutch packs or bands
- •Faulty shift or pressure control solenoid
- •Internal hydraulic/valve body problems
- •Worn torque converter
- •Faulty speed sensors giving false slip readings
- •General internal transmission wear
P0894 on Hyundai by Model
Hyundai Sonata(1 issue)
- A6MF Six-Speed Automatic Valve Body Bore Wear Causing Shift Flare and Harsh Shifts2011-2019
The A6-series six-speed automatic fitted to the YF and LF Sonata wears the aluminium bores that house the solenoid pressure-reducing valves. The worn bores leak line pressure internally, so clutch apply pressure falls and the transmission either flares (RPM jumping between gears as a clutch slips) or bangs into gear once the pressure command finally builds. Reports of the wear appearing by 40,000-60,000 miles are common. Symptoms are frequently misdiagnosed as a bad solenoid pack and the solenoids replaced without addressing the bores, which returns the fault within months. This is distinct from the wet dual-clutch (DCT) shudder complaint on the turbo and hybrid variants - the A6MF is a conventional torque-converter automatic.
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What does P0894 mean on Hyundai?▼
P0894 stands for "Transmission Component Slipping." This generic transmission code means the PCM/TCM detected that a rotating component inside the transmission is slipping, by comparing input and output speeds and finding more difference than there should be for the commanded gear. Slippage indicates clutches or bands are not holding properly, which can quickly worsen and damage the transmission through overheating and accelerated wear. It often comes with rough or flaring shifts, reduced power, and overheating, and should be addressed promptly. On Hyundai specifically, this code is documented across 1 model.
What causes P0894 on Hyundai vehicles?▼
Common causes on Hyundai: Low, dirty, or burnt transmission fluid, Worn clutch packs or bands, Faulty shift or pressure control solenoid, Internal hydraulic/valve body problems, Worn torque converter. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0894 on a Hyundai?▼
Repair costs on Hyundai range from $600 to $4,500, depending on the specific model and root cause.
Which Hyundai models have P0894 documented?▼
Au7o has documented P0894 on 1 Hyundai model: Sonata.