P2816 on Toyota: How to Diagnose & Fix
Pressure Control Solenoid "H" Malfunction
1 Toyota model · 1 documented issue · 1 critical
P2816 on Toyota by model: symptoms, diagnosis and fix
Early-production 4th-generation Tacomas with the 8-speed automatic transmission can suffer internal failure of the torque converter clutch actuator or pressure-control solenoids, often at very low mileage (some under 15,000 miles). Owners report harsh 1st-to-3rd-gear jerking, slipping, lunging, the truck dropping into neutral or getting stuck in gear, and sudden loss of drive. Toyota traced the cause to a stuck pressure-control solenoid actuator or torque-converter-clutch actuator (with manufacturing debris suspected) and issued TSB T-SB-0076-24, superseded by T-SB-0094-24 which added the Hybrid (i-FORCE MAX). The fix is not a calibration but a complete transmission and torque-converter replacement.
Common Symptoms
- Harsh or jerky 1st-to-3rd gear shifting
- Transmission slipping or lunging
- Truck drops into neutral or gets stuck in gear
- Loss of power / sluggish acceleration
- Check engine light with transmission DTCs
- Failure often within first 10,000-15,000 miles
How to Fix
Have the dealer scan for the listed DTCs and perform the transmission and torque-converter replacement under TSB T-SB-0076-24 / T-SB-0094-24. Repairs are covered under Toyota's 60-month/60,000-mile powertrain warranty at no cost. If the dealer claims they cannot replicate the symptom, document occurrences (dates, mileage, video) and request the field-fix bulletin be applied; escalate to Toyota corporate (1-800-331-4331) if denied.
Sources for this issue (3)
P2816 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 P2816 mean on a Toyota?
P2816 stands for "Pressure Control Solenoid "H" Malfunction." The transmission control module detected a fault with pressure control solenoid 'H'. Toyota's Tacoma AC8 bulletin carries this as P281671, 'Pressure Control Solenoid H Actuator Stuck' - the commanded solenoid state and the measured hydraulic pressure disagree, so the module concludes the valve is mechanically stuck. On the 2024 Tacoma i-FORCE 8-speed, P2816 appearing alongside P08BA, P2713, P2807, and P0740 is one of the fault sets that authorizes replacement of the complete transmission and torque converter under warranty. On Toyota it is documented across 1 model: Tacoma.
What are the most common causes of P2816?
The most common causes of P2816 are: Pressure control solenoid 'H' stuck by debris or wear, Contaminated or overheated transmission fluid, Valve body wear or blocked hydraulic circuit, Open or shorted solenoid circuit / connector fault, Internal transmission hydraulic failure (Toyota AC8 - replaced as an assembly). The specific cause varies by vehicle.
How much does it cost to fix P2816 on a Toyota?
Repair costs vary widely with the root cause and Toyota model; each issue on this page carries its own estimate where one is published.
Looking for P2816 on a different make?
View P2816 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.