P0756 on Chevrolet
Shift Solenoid B Performance/Stuck Off
P0756 on Chevrolet vehicles indicates shift solenoid b performance/stuck off. Au7o has documented this code across 2 Chevrolet models — most commonly on Blazer, Malibu. This code means the transmission control module commanded Shift Solenoid B (sometimes called Shift Solenoid 2) to operate, but the transmission did not respond as expected, with the solenoid behaving as if it is stuck in the 'off' position. Shift solenoids are electrically controlled valves that route transmission fluid pressure to engage the correct gears, so a stuck or weak solenoid can cause harsh, delayed, or missed shifts. The computer sets this code when the actual gear ratio or shift timing does not match what it commanded. It generally points to a hydraulic or electrical performance problem inside the automatic transmission rather than a simple wiring short. Typical repair costs on Chevrolet range from $150 to $4,000, depending on the specific model and root cause.
Common Causes of P0756
- •Stuck or failed Shift Solenoid B
- •Low, dirty, or degraded transmission fluid
- •Clogged solenoid or valve body passages from debris
- •Worn or sticking valve body components
- •Wiring or connector fault to the solenoid
- •Internal transmission wear or mechanical damage
- •Faulty transmission control module
P0756 on Chevrolet by Model
Chevrolet Blazer(1 issue)
- 9-Speed Automatic Transmission Shudder2019-2024
The 2019+ Blazer with the 9-speed automatic transmission (9T50/9T65) develops a shudder during acceleration from a stop, particularly between 1st and 2nd gear. GM bulletin PIP5608J addresses TCC shudder/surge issues. The root cause involves excess lubrication on internal parts contaminating the transmission fluid. Some owners require torque converter or full transmission replacement.
Chevrolet Malibu(1 issue)
- 6T40 Transmission Shudder and Harsh Shifts2013-2016
The 2013-2016 Malibu with the 2.5L Ecotec engine uses the GM 6T40 6-speed automatic transmission that develops a pronounced shudder during light acceleration in the 25-45 mph range. The torque converter clutch wears prematurely, causing slippage and vibration that feels like driving on rumble strips. Harsh 1-2 and 2-3 shifts are also common. The 6T40 is sensitive to fluid condition and the issue worsens rapidly if the fluid is not changed on schedule.
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View P0756 across all makes →Frequently Asked Questions
What does P0756 mean on Chevrolet?▼
P0756 stands for "Shift Solenoid B Performance/Stuck Off." This code means the transmission control module commanded Shift Solenoid B (sometimes called Shift Solenoid 2) to operate, but the transmission did not respond as expected, with the solenoid behaving as if it is stuck in the 'off' position. Shift solenoids are electrically controlled valves that route transmission fluid pressure to engage the correct gears, so a stuck or weak solenoid can cause harsh, delayed, or missed shifts. The computer sets this code when the actual gear ratio or shift timing does not match what it commanded. It generally points to a hydraulic or electrical performance problem inside the automatic transmission rather than a simple wiring short. On Chevrolet specifically, this code is documented across 2 models.
What causes P0756 on Chevrolet vehicles?▼
Common causes on Chevrolet: Stuck or failed Shift Solenoid B, Low, dirty, or degraded transmission fluid, Clogged solenoid or valve body passages from debris, Worn or sticking valve body components, Wiring or connector fault to the solenoid. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0756 on a Chevrolet?▼
Repair costs on Chevrolet range from $150 to $4,000, depending on the specific model and root cause.
Which Chevrolet models have P0756 documented?▼
Au7o has documented P0756 on 2 Chevrolet models: Blazer, Malibu.