P0757: How to Diagnose & Fix — Shift Solenoid "B" Stuck On
4 vehicles · 4 makes
How to diagnose and fix P0757: 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.
Ford Explorer · 2020–2023
On some Explorers with the 10R60 ten-speed automatic, engagement into gear or shifts can be harsh or delayed, sometimes with the check-engine light on and transmission codes stored. Ford attributes it to transmission-control software, the solenoid ID strategy and/or sticking valves in the main control valve body. It affects 2020–2023 Ford Explorers equipped with the 10R60 ten-speed automatic that show the symptoms or codes listed in bulletin 23-2352 (the bulletin also covers 2020–2023 Aviator and 2021–2023 Bronco with the 10R60).
Common Symptoms
- Harsh or delayed engagement into gear
- Harsh or delayed shifts
- Check-engine light on with transmission codes stored
How to Fix
Have a Ford dealer confirm the symptom and check for later PCM/TCM software. Bulletin 23-2352 specifies a PCM/TCM software update and adaptive learning drive cycle first. If the condition remains and one of the listed codes is stored, the main control valve body is serviced; without codes, vehicles built on or before 1-Nov-2021 first get a transmission solenoid strategy reprogram, and later builds go to the valve body. Ford notes shifts can feel firmer than normal for several days while the adaptive strategy relearns. Normal warranty rules apply; this is not a recall or a promise of free repair.
Sources for this issue (1)
Subaru Ascent · 2019–2019
On the 2019 Ascent the mid-joint of the transmission hydraulic pressure sensor harness was built with dissimilar metals - tinplate against copper. Galvanic action forms an oxide film at that joint, and the film corrupts the pressure signal the sensor sends to the TCU. When the sensor reports a pressure HIGHER than actual, the TCU commands the valve to reduce line pressure, and the Lineartronic's drive chain loses clamping tension. Slipping chain produces noise, vibration and hesitation, and continued driving in that state leads to loss of power. Recall population was 76,842 vehicles. This is a separate campaign and a separate root cause from the later TR690 chain-guide/TCU-programming recall (21V955 / WRK-21) - that one is a programming issue at clutch engagement, this one is a corroded sensor harness.
Common Symptoms
- Irregular noise from the transmission
- Vibration while driving
- Hesitation under acceleration
- Malfunction indicator lamp illuminated
- Loss of power if driven in the slipping condition
How to Fix
Free recall remedy under NHTSA 19V855 / Subaru campaign WUV-07. The base remedy is a TCU reprogram with more robust pressure-variation compensation. Vehicles found with specific stored diagnostic trouble codes also get the hydraulic sensor harness replaced. Any vehicle confirmed to have already run with low drive-chain tension gets a complete transmission assembly replacement, all at no charge. Because chain damage is cumulative, get the campaign done before symptoms appear - once the chain has slipped, a reprogram alone will not restore it.
Sources for this issue (4)
- NHTSA Part 573 Safety Recall Report 19V-855 (Subaru Ascent transmission hydraulic sensor)article
- Subaru Product Campaign Bulletin WUV-07 (recall 19V-855)article
- Safety Recall WUV-07 - CVT Chain Slip - 2019 Subaru Ascentarticle
- Subaru Ascent, Legacy, and Outback Recalled for Transmission Failure - Consumer Reportsarticle
Lincoln Aviator · 2020–2023
Some 2020-2023 Lincoln Aviators equipped with a 10R60 and built on or before December 23, 2022, or a 10R80 MHT and built on or before August 15, 2022, may have harsh or delayed engagement and/or harsh or delayed shifts. Ford TSB 22-2428 says the condition may involve PCM/TCM software, the transmission solenoid-ID strategy, sticking main-control valves, or axial movement of the CDF clutch-cylinder sleeve. The complaint may occur with or without a malfunction indicator and the bulletin's listed transmission DTCs. The symptom alone does not select a valve body, CDF cylinder, or complete transmission.
Common Symptoms
- Harsh engagement
- Delayed engagement
- Harsh shift
- Delayed shift
- Malfunction indicator with a bulletin-listed transmission DTC
How to Fix
Have a Ford/Lincoln-capable technician confirm the transmission and build date, retrieve PCM/TCM faults, and follow TSB 22-2428 in order. The bulletin begins with available PCM/TCM programming and an adaptive-learning drive cycle, then uses the stored faults and clutch behavior to select an accelerated main-control break-in routine. If the condition remains, the procedure can require main-control overhaul and, only after the bulletin's later tests fail, condition-specific internal transmission repair. Parts and coverage must be selected by VIN and the actual failed step.
Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.
Owner tips & cautions
- TipRecord the exact shift or engagement event and ask for the PCM/TCM fault report plus the TSB decision-tree step that failed before approving internal transmission work.
- WarningDo not order a valve body or CDF part from harsh shifting alone; Ford's procedure can resolve the condition through programming, adaptive learning, or clutch cycling before parts are selected.
Sources for this issue (1)
Pontiac Grand Prix · 2001–2008
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P0757 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 P0757 mean?
P0757 stands for "Shift Solenoid "B" Stuck On." This code means the transmission control module commanded shift solenoid B to turn off, but it detected that the solenoid (or its hydraulic valve) is stuck in the ON/applied position. Shift solenoids control the flow of transmission fluid that engages different gears, so a stuck solenoid prevents the transmission from shifting correctly. You may notice harsh shifts, the transmission being stuck in one gear, or no shift at certain points. Continued driving can stress and overheat the transmission.
What are the most common causes of P0757?
The most common causes of P0757 are: Failed or stuck shift solenoid B, Debris or contamination in the valve body, Dirty or degraded transmission fluid, Low transmission fluid level, Wiring or connector fault to the solenoid, Internal valve body wear or sticking, Faulty transmission control module (less common). The specific cause varies by vehicle.
How much does it cost to fix P0757?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by P0757?
Au7o has documented P0757 across 4 vehicle models from 4 manufacturers: Ford, Lincoln, Pontiac, Subaru.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.