P0841 on Kia
Transmission Fluid Pressure Sensor/Switch "A" Circuit Range/Performance
P0841 on Kia vehicles indicates transmission fluid pressure sensor/switch "a" circuit range/performance. Au7o has documented this code across 1 Kia model — most commonly on Forte. This powertrain code means the transmission computer detected the 'A' transmission fluid pressure sensor or switch reading out of its expected range or not matching actual operating conditions. This sensor converts hydraulic line pressure into an electrical signal the computer uses to manage shift timing and quality. An out-of-range reading can cause incorrect shift behavior, harsh or slipping shifts, or limp mode. It should be addressed to prevent drivability problems and possible transmission damage. Typical repair costs on Kia range from $1,800 to $4,200, depending on the specific model and root cause.
Common Causes of P0841
- •Low or contaminated transmission fluid
- •Faulty transmission fluid pressure sensor/switch
- •Wiring or connector problems in the sensor circuit
- •Clogged filter or restricted fluid passages
- •Worn valve body or internal pressure control fault
- •Faulty transmission control module (less common)
P0841 on Kia by Model
Kia Forte(1 issue)
- 7-Speed D7UF1 Dry Dual-Clutch (DCT) Judder and Slipping on 1.6T GT Models2019-2024
The Forte GT (and GT-Line with the 1.6L Gamma T-GDI) uses the D7UF1 seven-speed dry dual-clutch transmission rather than the IVT used on 2.0L cars. The dry clutch friction material glazes and the clutch actuator adaptation drifts, producing a body-shaking judder when creeping away from a stop or in slow traffic - the car vibrates but the steering wheel does not, which is the diagnostic that distinguishes clutch judder from a wheel/tire imbalance. As it progresses owners report a loud thud/jerk on the 1-2 engagement and, under wide-open throttle around 30-40 mph, a downshift where revs flare without corresponding acceleration (clutch slip). Kia issued TSB TRA083 covering 2016-2020 7-speed DCT vehicles.
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View P0841 across all makes →Frequently Asked Questions
What does P0841 mean on Kia?▼
P0841 stands for "Transmission Fluid Pressure Sensor/Switch "A" Circuit Range/Performance." This powertrain code means the transmission computer detected the 'A' transmission fluid pressure sensor or switch reading out of its expected range or not matching actual operating conditions. This sensor converts hydraulic line pressure into an electrical signal the computer uses to manage shift timing and quality. An out-of-range reading can cause incorrect shift behavior, harsh or slipping shifts, or limp mode. It should be addressed to prevent drivability problems and possible transmission damage. On Kia specifically, this code is documented across 1 model.
What causes P0841 on Kia vehicles?▼
Common causes on Kia: Low or contaminated transmission fluid, Faulty transmission fluid pressure sensor/switch, Wiring or connector problems in the sensor circuit, Clogged filter or restricted fluid passages, Worn valve body or internal pressure control fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0841 on a Kia?▼
Repair costs on Kia range from $1,800 to $4,200, depending on the specific model and root cause.
Which Kia models have P0841 documented?▼
Au7o has documented P0841 on 1 Kia model: Forte.