P076C — Shift Solenoid H Stuck On

OBD2 code P076C flags a problem with the automatic transmission control (shift solenoid h stuck on). Short, gentle driving to a shop is usually possible. Common culprits: low or degraded transmission fluid, failed shift or pressure control solenoid, valve body wear.

powertrain (engine/transmission)

Is it safe to drive?

Drive with caution Drive only if the transmission still shifts predictably, and avoid highway speeds. Driving with slipping or limp mode accelerates internal wear — every kilometre can add to the final repair bill.

How to diagnose with an OBD scanner

Read the code and freeze frame Connect an OBD2 scanner, confirm P076C is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the automatic transmission control for damage, corrosion, chafing or poor contact.
Subsystem check Command the shift solenoid h on and off with a scanner and watch the feedback signal; then remove and inspect the mechanism for sticking before replacing it.
Subsystem check Check transmission fluid level and condition — dark, burnt fluid points to internal wear.
Subsystem check Read transmission-specific codes and live data (solenoid states, input/output speed) with a capable scanner.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P076C does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P076C (parts and labor, USD, independent shop rates): Transmission rebuild or replacement: $2,500–$5,500; Replace a shift solenoid: $300–$800; Transmission fluid service: $150–$350; Valve body repair or replacement: $700–$1,500. Overall, fixing P076C usually costs between $150 and $5,500. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

What is the most common cause of P076C?

The most common causes are: low or degraded transmission fluid, failed shift or pressure control solenoid, valve body wear.

How do I diagnose P076C myself?

Start with a scan: confirm P076C, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the shift solenoid h, and verify the suspect component against live data before buying parts.

Is it safe to drive with P076C?

Drive only if the transmission still shifts predictably, and avoid highway speeds. Driving with slipping or limp mode accelerates internal wear — every kilometre can add to the final repair bill.

What are the symptoms of P076C?

Drivers most often notice: Check Engine or transmission warning light on, no movement in severe cases, transmission stuck in one gear (limp mode), harsh or delayed shifting.

How much does it cost to fix P076C?

Transmission rebuild or replacement — $2,500–$5,500; Replace a shift solenoid — $300–$800; Transmission fluid service — $150–$350; Valve body repair or replacement — $700–$1,500. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.

When your vehicle's engine control module decides something is wrong with the automatic transmission, it logs a diagnostic trouble code to help you figure out what happened. Code P076C specifically tells you that shift solenoid H is stuck in its "on" position. The transmission control system commands this solenoid to open or close to route fluid pressure through the valve body, which physically engages the correct gear. When that solenoid refuses to move — or gets stuck where it shouldn't be — the transmission loses the ability to shift properly, and the computer recognizes the problem.

Automatic transmissions rely on a network of solenoid valves to manage fluid pressure and direct it to the right clutch packs. Each solenoid acts like a tiny on-off valve controlled by electrical signals from the transmission control module. When you accelerate, the module fires the appropriate solenoids in sequence to engage gears smoothly. Shift solenoid H specifically handles certain gear-ratio changes, and if it stays energized when it should de-energize (or vice versa), the hydraulic circuit it controls either stays open or stays closed. That breaks the normal shifting sequence, and the module records P076C after confirming the condition across multiple drive cycles.

To set P076C, the control module compares its commands against sensor feedback. It expects to see the solenoid state change when requested, and when that change never arrives or the feedback shows the wrong state, the code triggers. Most modern vehicles also capture a freeze-frame snapshot alongside the fault — engine RPM, load percentage, coolant temperature, and vehicle speed at the exact moment the failure occurred. That snapshot is gold when you're trying to reproduce the failure condition during diagnosis.

Common Symptoms

Check Engine light or transmission warning indicator illuminates on the dashboard
Vehicle fails to move forward or reverse in severe cases
Transmission locks into a single gear and refuses to shift (limp-home mode)
Shifting feels rough, delayed, or jerky during acceleration
Noticeable shuddering or vibration at highway speeds
Engine revs without corresponding acceleration as gears slip

Possible Causes

Shift solenoid H mechanism blocked by carbon buildup, debris, or corrosion
Worn or damaged spring inside the solenoid that no longer returns it to default position
Electrical contacts inside the solenoid relay fused together (stuck on electrically)
General valve body wear affecting multiple solenoids
Low or contaminated transmission fluid reducing hydraulic pressure
Faulty transmission speed sensor sending incorrect data to the control module
Internal transmission damage such as worn clutches or torque converter problems

How to Diagnose

Connect an OBD2 scanner and confirm P076C is stored in the transmission control module. Record the freeze-frame data immediately — this snapshot tells you exactly what conditions existed when the fault first appeared.
Pull all related diagnostic trouble codes from every module. Co-occurring codes often point to the root cause rather than the symptom. Check manufacturer TSB databases using your vehicle's VIN to see if this particular code has a known factory fix or software update.
Physically inspect the wiring harness and electrical connectors feeding the transmission. Look for damaged insulation, loose terminals, corrosion buildup, or connectors that aren't fully seated. Vibration and heat over time loosen these connections.
Use your scanner to command shift solenoid H on and off while monitoring the response. Then access the transmission's live data stream to observe input and output speed sensors, gear ratio calculations, and fluid pressure readings. Compare what you see against factory specifications.
Perform a transmission fluid level check and condition assessment. Burnt, dark, or foamy fluid suggests heat damage and internal wear that may be contributing to the solenoid problem.
If the solenoid itself is accessible, remove it from the valve body and test its mechanical operation by hand. Sticking, binding, or unusual resistance indicates physical contamination or wear requiring replacement.

Repair Options and Costs

The right fix depends entirely on what's actually wrong inside your transmission:

Solenoid replacement — $300 to $800 (parts and labor). This is the most targeted fix when the solenoid itself has failed mechanically or electrically.
Transmission fluid service — $150 to $350. A drain-and-fill or flush removes contaminated fluid and restores proper hydraulic function. Often resolves codes triggered by dirty fluid alone.
Valve body repair or replacement — $700 to $1,500. The valve body houses all the solenoids and passages. If wear or damage affects multiple components, replacing the entire assembly makes sense.
Transmission rebuild or replacement — $2,500 to $5,500. Full teardown and overhaul becomes necessary when internal clutches, the torque converter, or extensive valve body damage is present.

Total repair costs for P076C span a wide range depending on severity. The least expensive scenario involves a fluid service or solenoid replacement at the lower end of the scale, while extensive internal damage can demand a full transmission rebuild. Always pursue accurate diagnosis before committing to expensive repairs — the worst-case scenario is rarely the first thing to check.

Can You Drive with P076C?

Limited driving may be possible if the transmission still completes basic gear changes without slipping or shuddering, but highway-speed operation is risky. Limp-home mode protects the transmission from further damage, but ignoring the problem lets internal wear accumulate. Every mile driven in a degraded state potentially increases the final repair bill, so have the vehicle diagnosed and repaired at your earliest convenience.