P08BA on 2024-2025 Toyota Tacoma (SR, SR5, TRD Sport, TRD Off-Road, Limited, TRD Pro, Trailhunter) — Pressure Control Solenoid "L" Actuator Stuck
1 vehicles · 1 makes
How to diagnose and fix P08BA: 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.
Toyota Tacoma · 2024–2025
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actuator or torque-converter-clutch actuator (with manufacturing debris suspected) and issued TSB T-SB-0076-24, superseded by T-SB-0094-24 which added the Hybrid (i-FORCE MAX).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)
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P08BA 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 P08BA mean?
P08BA stands for "Pressure Control Solenoid "L" Actuator Stuck." The transmission control module commanded pressure control solenoid "L" to change state and the resulting line/clutch pressure did not respond as expected, so the module concluded the solenoid valve is mechanically stuck rather than electrically open. Toyota's Tacoma bulletin lists this as sub-code P08BA71 (Pressure Control Solenoid 'L' Actuator Stuck) among the fault set that authorizes replacement of the complete 8-speed automatic (AC8) transmission and torque converter.
What are the most common causes of P08BA?
The most common causes of P08BA are: Pressure control solenoid 'L' valve stuck by debris or internal wear, Contaminated or degraded transmission fluid, Valve body bore wear letting the solenoid valve hang up, Internal transmission hydraulic failure requiring full unit replacement (Toyota AC8). The specific cause varies by vehicle.
How much does it cost to fix P08BA?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by P08BA?
Au7o has documented P08BA across 1 vehicle models from 1 manufacturers: Toyota.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.