AutoCodesGMC – P0757 2016 GMC Sierra

P0757 2016 GMC Sierra Code - Shift Solenoid Valve 2 Performance Stuck On

Quick Answer

The transmission fluid pressure switch, also known as the pressure switch manifold, is a multiple switch assembly made up of 3 normally open pressure switches and 1 normally closed pressure switch. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0757 2016 GMC Sierra indicates Shift Solenoid Valve 2 Performance Stuck On.
Common causes
Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 215
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 25, 2024
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Code P0757 2016 GMC Sierra Description

The transmission fluid pressure switch, also known as the pressure switch manifold, is a multiple switch assembly made up of 3 normally open pressure switches and 1 normally closed pressure switch. Pressure switch 1 monitor shift valve 1 positioning, pressure switch 2 monitors shift valve 2 positionings, and pressure switch 3 monitors shift valve 3 positionings. The normally open pressure switches 1–3 communicate the positioning to the transmission control module (TCM). The position of shift valves 1–3 is controlled by 3 normally closed shift solenoid valves. When energized, the shift solenoid valves directly control the main pressure to shift valve 1, 2, or 3, which strokes the shift valve. When the valve is stroked, an exhaust passage is blocked and fluid pressure to the pressure switch increases. The Diagnostic Trouble Code (DTC) will be set if the shift solenoid 2 is commanded off and pressure switch 2 remains on for 6–10 s, depending on the transmission fluid temperature.
OBDII Code P0757 2016 GMC Sierra - Shift Solenoid Valve 2 Performance Stuck On - AutoCodes.com
P0757 2016 GMC Sierra Code - Shift Solenoid Valve 2 Performance Stuck On

What are the Possible Causes of the DTC P0757 2016 GMC Sierra?

  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty Control Solenoid Valve Assembly
  • Control Solenoid Valve Assembly harness or connectors
  • Control Solenoid Valve Assembly circuit is open or shorted
  • Faulty Transmission Control Module (TCM)

How to Fix the DTC P0757 2016 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0757 2016 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0757 2016 GMC Sierra code?

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Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0757 2016 GMC Sierra Code

What does the OBDII code P0757 mean for a 2016 GMC Sierra?

P0757 indicates that the shift solenoid valve 2 is stuck in the "on" position, which can lead to improper shifting or transmission issues.

What are the common symptoms of code P0757 on a 2016 GMC Sierra?

Symptoms may include harsh or delayed shifting, transmission stuck in one gear, decreased fuel efficiency, and the check engine light being illuminated.

What causes the P0757 code to appear on a 2016 GMC Sierra?

Common causes include a faulty shift solenoid, low or dirty transmission fluid, clogged transmission passages, or internal transmission damage.

Can I drive my 2016 GMC Sierra with the P0757 code?

While it might be possible to drive, continuing to do so can cause further damage to the transmission. It’s best to address the issue as soon as possible.

How do I diagnose the P0757 code on a 2016 GMC Sierra?

Diagnosis involves checking the transmission fluid level and condition, inspecting wiring and connectors for damage, and testing the shift solenoid for proper operation.

What does a stuck "on" shift solenoid mean?

A stuck "on" solenoid means the valve controlling fluid flow in the transmission is not closing properly, disrupting normal gear shifting.

How do I fix the P0757 code on my 2016 GMC Sierra?

Repairs may include replacing the shift solenoid, cleaning or replacing the transmission fluid, repairing damaged wiring, or addressing internal transmission issues.

What type of transmission fluid should I use for a 2016 GMC Sierra?

The 2016 GMC Sierra typically uses Dexron VI automatic transmission fluid. Always check your owner’s manual to confirm.

What tools are needed to troubleshoot the P0757 code?

Basic tools include an OBDII scanner, multimeter, and possibly a transmission pressure gauge for deeper diagnostic work.

How much does it cost to fix a P0757 code on a 2016 GMC Sierra?

Costs vary, but replacing a shift solenoid typically ranges from $150 to $400, while more extensive transmission repairs can be significantly higher.

Discuss the causes and fixes for P0757 2016 GMC Sierra OBDII Code

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