P0752 on 2008-2010 Saturn Vue 3.6L: Shift Solenoid 'A' Stuck On Causes and Fixes

What's Unique About the 2008-2010 Saturn Vue

The 2008-2010 Saturn Vue uses a GM 6T70 or 6T75 6-speed automatic transmission, which is notorious for two significant, common failures that directly cause the P0752 code. The first is a fractured 3-5-R wave plate, a thin, spring-like metal ring that breaks apart. The resulting metal fragments circulate through the transmission fluid, jamming solenoids and clogging the valve body. The second is the failure of the Transmission Electro-Hydraulic Control Module (TEHCM), an all-in-one unit containing the computer and solenoids inside the transmission pan. A common failure point on the TEHCM is the cracking of the thin laminate film over the pressure switches, which allows debris and fluid to cause electrical faults. Therefore, this code on a Vue is less likely to be a simple, isolated solenoid issue and more often points to one of these two well-documented, platform-specific problems.

Symptoms You May Notice

• Check Engine Light is on
• Transmission stuck in one gear (often 2nd or 3rd)
• Harsh, banging, or delayed shifts
• Slipping between gears, where engine RPMs flare up without an increase in speed
• Inability to engage Reverse, or a long delay before it engages
• Complete loss of 3rd, 5th, and Reverse gears
• Transmission overheating warning message
• Vehicle enters 'limp mode'

Most Likely Causes

1. Broken 3-5-R Wave Plate 🔴 High Probability The 6T70/6T75 transmission used in this Vue had a manufacturing defect in the 3-5-R clutch wave plate, causing it to fracture. GM acknowledged this with Special Coverage Adjustment 14404B, extending the warranty to 10 years/120,000 miles for this specific failure on 2008-2009 models. Though expired, it confirms the high failure rate across numerous GM platforms.
   How to confirm: Drain a small amount of transmission fluid and inspect it. The presence of metallic, glitter-like particles in the fluid is a definitive sign of wave plate failure. The transmission pan will contain significant metal debris.
   Typical fix: This is a catastrophic failure requiring the transmission to be removed and completely rebuilt to replace the broken plate and clean all metal debris from the entire system, including the valve body and torque converter. Updated, stronger wave plates are available in aftermarket rebuild kits.
   Est. part cost: $300-$600 for a full rebuild kit with an updated wave plate design.
🎬 Watch: Technical breakdown of 6T70 transmission failure points
2. Failed Transmission Electro-Hydraulic Control Module (TEHCM) 🔴 High Probability → Shop Transmission Assembly The TEHCM, which houses the TCM, solenoids, and pressure switches, is located inside the hot transmission, making it prone to failure. A very common issue is the laminate film over the pressure switches cracking or breaking, causing fluid intrusion and electrical faults that trigger P0752 and other pressure switch codes.
   How to confirm: If the transmission fluid is clean (no metal debris), the TEHCM is the prime suspect. A diagnostic scan tool will often show other TEHCM-related codes, such as P0877 (Trans Fluid Pressure Sensor Switch D). Visual inspection after removing the transmission side cover may reveal a visibly broken pressure switch film. 🎬 See how a failed TEHCM causes pressure codes
   Typical fix: Replace the entire TEHCM unit, which is located behind the transmission's side cover. The new module must be programmed to the vehicle's VIN using specialized dealer-level software.
   Est. part cost: $350-$600 for a new or remanufactured TEHCM.
3. Low or Dirty Transmission Fluid 🟡 Medium Probability → Shop Transmission Assembly
   How to confirm: Check the transmission fluid level and condition using the dipstick. The fluid should be at the correct level and reddish-pink in color, not dark brown, black, or burnt-smelling. Low fluid can prevent proper hydraulic pressure from building.
   Typical fix: Perform a transmission fluid drain-and-fill using DEXRON-VI fluid. If the fluid is very dirty, a full fluid exchange may be necessary. Note: If the fluid contains metal debris, this is not the root cause; see 'Broken 3-5-R Wave Plate'.
   Est. part cost: $60-$120 for fluid.

Diagnosis Steps

1. Check the transmission fluid level and condition. Look for a low level or fluid that is dark, burnt, or contains shiny metal particles ('glitter').
2. If metal particles are present, the 3-5-R wave plate has failed. The transmission requires a rebuild. No further diagnosis is needed.
3. If the fluid is clean, connect a professional scan tool capable of communicating with the TCM.
4. Check for other transmission-related trouble codes. Codes like P0877, P0989, or P0751 strongly point towards a TEHCM failure.
5. Use the scan tool to monitor the commanded state vs. the actual state of Shift Solenoid 'A'.
6. Command the solenoid on and off with the scan tool to check for an electrical response. A lack of response points towards a wiring or TEHCM issue.
7. If the diagnosis points to an internal fault and the fluid is clean, the most likely cause is a failed TEHCM.
8. For a definitive diagnosis, a technician may need to drop the transmission side pan to visually inspect the TEHCM for broken pressure switch films and check for debris on the filter screens.

Parts You'll Likely Need

• Transmission Electro-Hydraulic Control Module (TEHCM) (OEM #24256861 (Superseded by 24287422)) — This is the most common point of failure if the transmission fluid is clean. It contains the solenoids, pressure switches, and control computer in one unit. Failure of the pressure switch laminate film is a well-documented issue.
  Trusted brands: ACDelco
  OEM price range: $450-$600
  Aftermarket price range: $350-$500
• Transmission Rebuild Kit (with updated 3-5-R Wave Plate) (OEM #Original wave plate was P/N 24254103. Aftermarket kits are recommended.) — Required if the diagnosis confirms a broken wave plate. Aftermarket kits from brands like Sonnax often include improved components to prevent repeat failure, such as the 124555K Drum Saver Kit.
  Trusted brands: Sonnax, TransGo
  Aftermarket price range: $300-$600
• DEXRON-VI Automatic Transmission Fluid — This specific fluid is required for any service on the 6T70/6T75 transmission.
  Trusted brands: ACDelco, Valvoline, Castrol
  OEM price range: $10-$15 per quart
  Aftermarket price range: $8-$12 per quart

Related Codes That Often Appear With This One

• P0700 — This is a generic code indicating the Transmission Control Module has stored a fault code. It will almost always be present alongside any specific transmission code like P0752.
• P0776 — This code ('Pressure Control Solenoid 'B' Stuck Off') is also commonly associated with the 3-5-R wave plate failure, as the debris affects multiple hydraulic circuits.
• P0751 — This code ('Shift Solenoid 'A' Performance/Stuck Off') is the counterpart to P0752 and can also be triggered by a failing TEHCM or debris contamination.
• P0877 — This code ('Transmission Fluid Pressure Sensor/Switch 'D' Circuit Low') is very commonly seen with P0752 when the TEHCM fails, as it points to the broken pressure switch film on the module.

Technical Service Bulletins (TSBs) & Recalls

• 14404B: Special Coverage Adjustment – Transmission Clutch Wave Plate. Covers the loss of 3rd, 5th, and Reverse gears due to a fractured wave plate.
• GCUS-9-2635: A GM TSB number associated with the wave plate special coverage adjustment.

Platform-Specific Known Issues

• GM Special Coverage Adjustment 14404B was issued for a high rate of failure of the 3-5-R wave plate in the 6T70/6T75 transmission, which included the 2008-2009 Saturn Vue. This coverage extended the warranty to 10 years or 120,000 miles for this specific repair. While now expired, it documents the prevalence of this issue.

Mechanic-Grade Diagnostic Values

• On/Off Shift Solenoid Resistance — expected: 20-40 ohms (varies with temperature). Failure: A reading outside this range indicates a faulty solenoid coil.
• PWM VBS (Variable Bleed Solenoid) Resistance — expected: 4-7 ohms (varies with temperature). Failure: A reading outside this range points to a failure in a pressure control solenoid.

Scan Tool Commands That Help

• GM Tech 2 / GDS2: Solenoid Valve Diagnosis / Output Controls — Used to individually command each shift solenoid on and off. This helps determine if the solenoid is electrically responsive. When used with a pressure test plate (like Kent-Moore DT-47825), a technician can confirm if the solenoid is mechanically stuck by observing air pressure changes.
• GM Tech 2 / GDS2: SPS (Service Programming System) - Replace and Reprogram — This function is mandatory after replacing the TEHCM. It flashes the new module with the correct software and VIN for the vehicle. Failure to program a new TEHCM will result in a no-start or limp-mode condition.
• GM Tech 2 / GDS2: Reset Transmission Adapts / Transmission Service Fast Learn — After replacing the TEHCM or rebuilding the transmission, this procedure must be performed to clear old learned shift parameters and force the TCM to learn the new components' hydraulic characteristics. A quick learn or fast learn procedure is often required to resolve delayed engagement or harsh shifts after a repair.

Wiring & Ground Locations

• G105 — At the left rear of the engine.. This is a primary engine ground. A poor connection here can cause a variety of electrical issues for engine and transmission control modules, leading to erratic sensor readings or module behavior.
• G106 — On the engine, at the left front top corner.. Another critical engine ground point. Ensuring this is clean and tight is a key step in ruling out simple electrical faults before condemning expensive components like the TEHCM.
• Ignition Coil Ground Wire (Bank 1) — A ground wire for the rear bank of ignition coils (cylinders 1, 3, 5) routes near the throttle body and bolts to a stud near the power steering pump reservoir.. While not directly for the transmission, this wire is known to become brittle and break. A floating ground in the engine bay can introduce electrical noise that may affect the nearby TEHCM or its sensor inputs, making it a worthwhile check for any unusual electrical codes.
• TEHCM 20-pin Connector — On the TEHCM, accessible after removing the transmission side cover.. This is the main electrical interface for the transmission. Any corrosion or pin damage here will directly cause communication and solenoid control faults. The seal for this connector must be properly seated on the inside of the cover to prevent fluid leaks.

Real Owner Repair Stories

• YouTube video by 'guitarmageddonzl1' (2009 Saturn Vue (3.5L V6, but 6T70 transmission is similar)) — Delayed engagement, harsh shifting, and codes P0752, P0877, and P0989.
  ❌ Tried (didn't work) Initial diagnosis pointed to a major internal failure or a bad TEHCM.
  ✅ What actually fixed it The TEHCM was removed and inspected. The laminate discs covering the pressure switches were found to be broken and missing. Instead of replacing the entire $800+ TEHCM, the technician replaced only the damaged pressure switch diaphragms and seals using an aftermarket repair kit (from Sonnax). After reinstallation, a 'quick learn' procedure with a scan tool was required to resolve a remaining shift delay.
• NHTSA ODI #10927817 — An owner reported that the vehicle failed to shift from 1st gear, causing the RPMs to increase significantly while moving. Diagnostic codes P0700, P0752, and P0989 were pulled, and the vehicle required professional transmission shop service.
• NHTSA ODI #10543119 (Cross-Model Reference) — A report for a similar Saturn model noted that the dealership identified codes P0989, P0877, P0752, and P0700, concluding the issue was rooted in the Transmission Control Module.

OEM Part Supersession History

• 24256861 → 24287422, among others — Revisions to improve reliability and address common failure points.
  Heads up: The TEHCM is not plug-and-play. Any replacement, new or remanufactured, MUST be programmed to the vehicle's VIN using GM's Service Programming System (SPS) via a Tech 2 or GDS2 scan tool.
• 24254103 (3-5-R Wave Plate) → Updated OEM designs and superior aftermarket kits like Sonnax 124555K. — The original wave plate had teeth that created stress points, leading to fractures. Updated OEM plates were shot-peened for more durability, but aftermarket designs like the Sonnax kit eliminate the teeth entirely, removing the primary failure point.

Model Year Variations Within This Range

• 2008-2009: These model years are explicitly covered by GM Special Coverage Adjustment 14404B for the 3-5-R wave plate failure, confirming they used the early, failure-prone design.
• 2010+: While not immune, later model year GM vehicles began to receive updated (shot-peened) wave plates from the factory. A 2010 Vue is less likely to have the original flawed plate than a 2008-2009 model, but failures can still occur. The aftermarket toothless designs are considered a superior fix for all years.
• Gen 1 vs. Gen 2 (Post-2012): Starting around 2013 for most models, GM introduced the 'Gen 2' 6T70 which had significant internal changes, including a redesigned 3-5-R/4-5-6 clutch housing and the elimination of pressure switches on the TEHCM in favor of a 'clutch pulse learning' system. While this doesn't apply to the 2008-2010 Vue, it's important to know that TEHCMs and internal parts are not interchangeable between Gen 1 and Gen 2 transmissions.

Diagnostic Flowchart

Other Known Issues on This Vehicle

Issues unrelated to this code that are worth knowing about as an owner of this generation:

• Premature Timing Chain Stretch 🔴 High — Very common, often appearing between 70,000 and 120,000 miles. Triggers codes like P0008, P0009, P0017. (Ref: GM Special Coverage Adjustment #11340C (now expired) was issued for this.)
• Power Steering Failure (Hydraulic and Electric) 🟠 Medium — Multiple reports of sudden loss of power steering. Causes range from leaking hydraulic lines to failing electric power steering motors or over-charging alternators causing electrical faults.
• Sunroof Drain Tube Leaks 🟠 Medium — Common issue where drain tubes for the sunroof become disconnected or clogged, causing water to leak into the cabin, often onto the floorboards or critical electronics like the fuse box. (Ref: GM issued technical service bulletins to dealers on how to correct the issue, but it was not a formal recall.)

Used vs. New Parts: Buying Guide for This Vehicle

When a used part is the smart pick: A complete, used transmission assembly from a low-mileage donor vehicle can be a cost-effective alternative to a rebuild, especially if your transmission has catastrophic hard-part damage beyond the wave plate. However, it is a gamble, as it may have the same inherent defects.

Donor-vehicle mileage cap: roughly under 80000 miles for the part to have meaningful remaining life.

What to inspect on the donor part:

• Verify the donor vehicle's VIN to confirm it's a later model year if possible.
• Ask for a video of the donor car running and driving, if available.
• Drain a small amount of fluid from the donor transmission before purchase. Any sign of glitter or a burnt smell is a major red flag.
• Check the warranty offered by the salvage yard. A 6-month warranty is minimal; longer is better.

Aftermarket brands forum-validated for this vehicle:

• Sonnax: Widely regarded by transmission professionals for their superior-to-OEM rebuild components, especially the 124555K 3-5-R Drum Saver Kit and pressure switch repair kits.
• TransGo: Another reputable brand for transmission shift kits and rebuild components.
• ACDelco: The OEM supplier for new and remanufactured TEHCMs. While the original design failed, their current replacements are the standard for service.

Brands owners have reported issues with on this vehicle:

• Unbranded, 'white box' TEHCMs or solenoids from online marketplaces. These often have high failure rates and may not program correctly. Given the labor involved, using a reputable part is critical.

Real Owner Stories

Aggregated from forums and TSBs cited above. Mileages and costs reflect what owners reported in those sources.

Related OBD-II Codes

• P0877 — Often appears with P0752 as it indicates a fault with the Transmission Fluid Pressure Sensor. Both codes are frequently triggered by a single root cause: a failed Transmission Electro-Hydraulic Control Module (TEHCM).
• P0751 — This code for 'Shift Solenoid 'A' Performance/Stuck Off' is the direct counterpart to P0752 ('Stuck On'). Seeing either code points to a problem with the same solenoid, typically caused by a faulty TEHCM or metal debris from a wave plate failure.
• P0989 — Like P0877, this is a pressure switch-related code. Its presence alongside P0752 strongly suggests an internal electrical failure within the TEHCM, which houses both the solenoids and pressure switches.
• P0008 — While not directly related to the transmission, this code is extremely common on the 3.6L V6 in the Saturn Vue. It indicates a critical engine issue with stretched timing chains, another well-documented, major repair for this vehicle.
• P0017 — Similar to P0008, this code points to a crankshaft/camshaft position correlation error. It is a primary symptom of the common timing chain stretch issue on the 3.6L V6 engine and, while unrelated to P0752, is a critical code for owners to be aware of.

Frequently Asked Questions