P0756 on Cadillac
Shift Solenoid B Performance/Stuck Off
P0756 on Cadillac vehicles indicates shift solenoid b performance/stuck off. Au7o has documented this code across 1 Cadillac model — most commonly on Escalade. 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 Cadillac range from $2,200 to $3,500, 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 Cadillac by Model
Cadillac Escalade(1 issue)
- 4L60E/4L65E 3-4 Clutch Pack Burnup Causes Loss of Third and Fourth Gear2002-2006
GMT800-era Escalades use the 4L60E/4L65E four-speed behind the 6.0L LQ9/LQ4, and in a 5,800-pound SUV the 3-4 clutch pack is the component that gives out. The 3-4 clutch apply circuit runs through a small feed and the waved snap ring and clutch plates cook under sustained load - towing, hills, or just the vehicle's weight over time. It usually starts as a flare or slip on the 2-3 shift, then the transmission stops making 3rd and 4th entirely and drives only in 1st and 2nd (or goes to limp with no movement at all). The sun shell ('Beast' shell) splintering is the other classic failure and produces loss of reverse and 2nd/4th. CarComplaints lists 'Transmission Failure' as the #1 problem on both the 2005 Escalade (avg $2,800 at 79,000 mi) and the 2006 Escalade (avg $2,800 at 77,000 mi), which is early-life failure for a truck transmission. This is a separate failure from the later 8L90 and 10-speed shift-quality complaints.
Looking for P0756 on a different make?
View P0756 across all makes →Frequently Asked Questions
What does P0756 mean on Cadillac?▼
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 Cadillac specifically, this code is documented across 1 model.
What causes P0756 on Cadillac vehicles?▼
Common causes on Cadillac: 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 Cadillac?▼
Repair costs on Cadillac range from $2,200 to $3,500, depending on the specific model and root cause.
Which Cadillac models have P0756 documented?▼
Au7o has documented P0756 on 1 Cadillac model: Escalade.