P0752: Shift Solenoid A Stuck On
What Does P0752 Mean?
P0752 is a diagnostic trouble code indicating: Shift Solenoid A Stuck On. This code relates to the transmission system. It has been reported in NHTSA complaints across 2 different vehicle models.
The automatic transmission is controlled by the TCM using input from speed sensors, temperature sensors, and pressure sensors. When the TCM detects a fault, it may activate limp mode (2nd or 3rd gear only). Shift solenoids are electromagnetic valves inside the valve body controlling hydraulic fluid flow. Modern transmissions use 4-8 solenoids in combination for each gear. Solenoid failures are often caused by contaminated fluid — worn clutch material and degraded fluid create varnish that sticks solenoids. Always check transmission fluid first: level, color (red/pink good, brown/black bad), and smell (burnt = internal damage). Transmission DTCs escalate fast — a $200 solenoid fix can become a $3000-$5000 rebuild if ignored.
Symptoms of P0752
- ⚠️ Check engine/transmission warning light on
- ⚠️ Harsh, delayed, or erratic shifting
- ⚠️ Transmission stuck in one gear (limp mode)
- ⚠️ No upshift or no downshift
- ⚠️ Transmission slipping
- ⚠️ RPM flares between shifts
Common Causes
- 🔍 Faulty shift solenoid
- 🔍 Contaminated transmission fluid
- 🔍 Wiring issue between TCM and solenoid
- 🔍 Valve body wear
- 🔍 TCM internal failure
P0752 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"THE TIMING CHAIN AND GUIDES WENT BAD AT ONLY 110K MILES. AND IF IT WAS RECALLED LIKE THE 2009 CHEVY TRAVERSE WAS THEN I WOULDN'T HAVE HAD TO FIX IT. IT HAS THE SAME MOTOR. IT IS THE 3.6L MOTOR. BECAUSE IT IS THE SPORTS MODEL. IT WAS THROWING P0008 P0018 P0017 AND TWO TRANSMISSION CODES SO I BELIEVE "
— Chevrolet Equinox owner, 05/12/2020
"THE TRANSMISSION ON MY ACADIA HAS DIED. MY WIFE WENT TO PICKUP OUR SON FROM A FRIEND'S HOUSE. THE CAR DROVE FINE ON THE WAY OVER. WHEN THEY GOT BACK IN THE CAR, TO LEAVE, THE CAR WOULD NOT GO INTO GEAR. SHE COULD MOVE THE SHIFT LEVER INTO REVERSE BUT THE CAR WOULDN'T GO. THE ENGINE WOULD JUST R"
— Gmc Acadia owner, 09/21/2013
"AFTER A COUPLE ATTEMPTS TO ADDRESS SERVICE ENGINE ISSUES WITH LOCAL MECHANIC, THE CAR CONTINUED TO DISPLAY CODES AND THEN WOULD NOT CONSISTENTLY SHIFT INTO 2 OR 3RD GEAR. WE TOOK THE CAR TO A GMC DEALER AND THEY FOUND THAT THE TRANSMISSION CONTROL MODULE NEEDED REPLACED (CODE P0752) AS DID THE SHIF"
— Gmc Acadia owner, 03/09/2015
Source: NHTSA Complaints Database
Most Reported Vehicles for P0752
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | GMC ACADIA | |
| 2 | CHEVROLET EQUINOX |
P0752 Reports by Vehicle
Detailed NHTSA complaint analysis for each vehicle model.
Diagnostic Tips
- Check fluid level and condition FIRST
- Multiple codes suggest valve body or internal damage
- Monitor solenoid duty cycle with scan tool
- Solenoids often accessible by removing pan
Common Mistakes to Avoid
- ❌ Replacing solenoid without flushing contaminated fluid
- ❌ Using aftermarket fluid instead of manufacturer-specified
- ❌ Driving in limp mode for extended periods
Frequently Asked Questions
What is a shift solenoid?
Can I drive in limp mode?
How much for solenoid replacement?
Can fluid change fix it?
What To Do Next
Possible Fixes
- 🔧 Replace shift solenoid or pack
- 🔧 Transmission fluid flush with manufacturer fluid
- 🔧 Repair wiring to transmission
- 🔧 Replace valve body
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.