P0751 on Cadillac
Shift Solenoid A Performance/Stuck Off
P0751 on Cadillac vehicles indicates shift solenoid a performance/stuck off. Au7o has documented this code across 1 Cadillac model — most commonly on XT5. This code means the transmission control module commanded Shift Solenoid A (sometimes called Shift Solenoid 1) but the transmission did not respond properly, with the solenoid acting as though it is stuck 'off.' Shift solenoids are electrically operated valves that direct hydraulic fluid pressure to engage gears, so when one underperforms the transmission may shift harshly, slip, or fail to change gears at the right time. The computer sets this code when the measured gear ratio or shift behavior does not match the commanded state. It generally indicates a hydraulic or performance issue with the solenoid or the fluid circuit it controls inside the automatic transmission. Typical repair costs on Cadillac range from $200 to $4,000, depending on the specific model and root cause.
Common Causes of P0751
- •Stuck or failed Shift Solenoid A
- •Low, dirty, or degraded transmission fluid
- •Clogged solenoid screen or valve body passages
- •Sticking or worn valve body components
- •Wiring or connector problem at the solenoid
- •Internal transmission mechanical wear
- •Faulty transmission control module
P0751 on Cadillac by Model
Cadillac XT5(1 issue)
- 9-Speed Automatic Transmission Shudder2017-2024
The XT5 with the 9-speed automatic transmission develops a shudder during low-speed acceleration and gear hunting at highway speeds. GM launched a pilot program in 2020 for 2020-2021 models to address 9-speed defects. Transmission lockouts where the transmission will not shift at highway speeds are also reported. A June 2024 service update addresses clutch piston retaining ring issues on 2024 models.
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View P0751 across all makes →Frequently Asked Questions
What does P0751 mean on Cadillac?▼
P0751 stands for "Shift Solenoid A Performance/Stuck Off." This code means the transmission control module commanded Shift Solenoid A (sometimes called Shift Solenoid 1) but the transmission did not respond properly, with the solenoid acting as though it is stuck 'off.' Shift solenoids are electrically operated valves that direct hydraulic fluid pressure to engage gears, so when one underperforms the transmission may shift harshly, slip, or fail to change gears at the right time. The computer sets this code when the measured gear ratio or shift behavior does not match the commanded state. It generally indicates a hydraulic or performance issue with the solenoid or the fluid circuit it controls inside the automatic transmission. On Cadillac specifically, this code is documented across 1 model.
What causes P0751 on Cadillac vehicles?▼
Common causes on Cadillac: Stuck or failed Shift Solenoid A, Low, dirty, or degraded transmission fluid, Clogged solenoid screen or valve body passages, Sticking or worn valve body components, Wiring or connector problem at the solenoid. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0751 on a Cadillac?▼
Repair costs on Cadillac range from $200 to $4,000, depending on the specific model and root cause.
Which Cadillac models have P0751 documented?▼
Au7o has documented P0751 on 1 Cadillac model: XT5.