P0810: How to Diagnose & Fix — Clutch Position Control Error
4 vehicles · 3 makes · $250-$6,000 repair
How to diagnose and fix P0810: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Kia Forte · 2019–2024
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.
Common Symptoms
- Vehicle shudders/vibrates when pulling away from a stop
- Loud thud and jerk on low-speed shifts
- Revs flare without acceleration under hard throttle
- Hesitation or lurching in stop-and-go traffic
- Clutch/transmission overheat warning message
How to Fix
Per the Kia bulletin, confirm judder with the creep test (drive at up to about 3 mph from a stop; body vibrates, steering wheel steady). First step for milder cases is a TCU software upgrade with a clutch touch-point/actuator re-learn. If judder persists, the dual clutch assembly must be replaced and the TCU reflashed afterward. Replacement is normally covered by the 10yr/100k powertrain warranty for the original owner, or 5yr/60k for subsequent owners. Do not simply add or change fluid to chase judder - the D7UF1 clutch pack is dry and the failure is friction-surface, not fluid, related.
Sources for this issue (4)
Toyota Yaris · 2005–2013
This failure belongs to European-market Yaris fitted with Toyota's MMT (Multimode) automated manual transmission - an electrically operated robotised manual transmission with electric actuators for clutch and gear selection. It does not exist on the US-market four-speed automatic or on any Mazda-built Yaris. The clutch actuator can fail and lose the ability to hold or report clutch position. The gearbox then refuses to select a gear and the N on the gear position display flashes. Most owners hit it stationary, moments after switching on - the car simply will not take drive - but it also happens on the move, where the box drops out of the engaged gear and back into neutral, which is a loss of drive in traffic. UK actuator remanufacturers describe it as a frequent failure on MMT-equipped Yaris and commonly see fault codes such as P0810.
Common Symptoms
- Flashing N on the gear position display
- Car will not select a gear from standstill
- Gearbox drops into neutral while driving
- Loss of drive with the engine still running
- Transmission warning light
- Harsh or delayed engagement before total failure
How to Fix
Scan the transmission ECU first - stored codes help direct diagnosis, though codes alone do not prove the actuator rather than the clutch, mechanism or wiring is at fault. The conventional dealer answer is a new actuator assembly, which is expensive; the established alternative in the UK is a rebuild of the existing actuator by a remanufacturing specialist, which is cheaper than new, followed by any calibration Toyota or the specialist specifies. Have the clutch condition checked at the same time. No recall is cited for this - it is treated as a wear failure.
Sources for this issue (4)
- MMT gearbox problems - Clutch actuator (Toyota Owners Club UK)forum
- MMT gearbox yet again flashing N in drive positions - Yaris & Yaris Cross Club (Toyota Owners Club UK)forum
- Toyota MMT (Multimode) Clutch Actuator / Gearbox Malfunction - fault codes P0810 and P0900article
- Toyota MMT Clutch Actuator repair - common faultsarticle
Kia Soul · 2017–2020
Souls with the 1.6L Turbo-GDI and 7-speed dry dual-clutch transmission exhibit low-speed clutch judder (a body shake accelerating from a stop, worst on cold/humid mornings), harsh engagement, and hesitation. The dry clutches glaze/wear during stop-and-go creeping. Kia's diagnosis is a creep-driving test: if the body vibrates without steering-wheel shudder, it is clutch judder. TSB TRA083 first applies a TCU anti-judder logic update, then replaces the dual-clutch assembly if hardware is glazed/worn.
Common Symptoms
- Shudder/judder accelerating from a stop
- Harsh or delayed shifting
- Hesitation and slipping in traffic
- Morning shudder after rain
How to Fix
Kia creep-test diagnosis; first step is a TCU/software anti-judder logic update via KDS, then dual-clutch assembly replacement per TSB TRA083 if judder persists.
Sources for this issue (3)
Renault Clio · 2013–2019
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P0810 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 P0810 mean?
P0810 stands for "Clutch Position Control Error." The TCM commanded a clutch position but the feedback did not match the commanded position within an acceptable tolerance/time. Indicates the clutch is not reaching the target position as commanded.
What are the most common causes of P0810?
The most common causes of P0810 are: Worn clutch, Faulty clutch actuator, Clutch position sensor out of calibration, Low hydraulic pressure (clutch-by-wire systems), Mechanical binding, Internal TCM fault. The specific cause varies by vehicle.
How much does it cost to fix P0810?
Repair costs for P0810 range from $250 to $6,000, depending on the vehicle and root cause.
Which vehicles are affected by P0810?
Au7o has documented P0810 across 4 vehicle models from 3 manufacturers: Kia, Renault, Toyota.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.