P0711 on Cadillac
Transmission Fluid Temperature Sensor Circuit Range/Performance
P0711 on Cadillac vehicles indicates transmission fluid temperature sensor circuit range/performance. Au7o has documented this code across 1 Cadillac model — most commonly on CT6. P0711 means the transmission fluid temperature (TFT) sensor's signal is outside its expected range or not changing as the computer expects (range/performance). This sensor monitors how hot the transmission fluid is so the computer can adjust shift timing, torque converter lockup, and protect the transmission from overheating. A range/performance fault usually means the sensor is reading an implausible or 'stuck' value rather than being completely open or shorted. It can cause harsh or delayed shifts, no torque converter lockup, or the transmission defaulting to a protective mode. Typical repair costs on Cadillac range from $300 to $5,500, depending on the specific model and root cause.
Common Causes of P0711
- •Faulty transmission fluid temperature sensor
- •Low, old, or contaminated transmission fluid
- •Wiring or connector problems in the sensor circuit
- •Internal transmission overheating or restriction
- •Sensor reading stuck or drifting out of range
- •Poor ground or reference voltage to the sensor
- •Faulty transmission control module (TCM/PCM)
P0711 on Cadillac by Model
Cadillac CT6(1 issue)
- Harsh 1-2 Shifting and Delayed Reverse Engagement on the Eight-Speed Automatic2016-2018
Powertrain complaints are the single largest NHTSA complaint category for the 2017 CT6. Owners of 2016-2018 cars report harsh or banging engagement between first and second gear, unpredictable shift quality, a long delay when moving from neutral or park into reverse, and occasional lurching or hesitation on tip-in. Some cars set transmission-controller codes. Unlike the TCC shudder, this is a shift-quality and control fault rather than a fluid-friction issue, and it has driven a meaningful share of CT6 lemon-law claims. On PHEV cars the same symptom set has a separate documented electrical root cause (see the transmission wiring-harness thermistor issue).
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What does P0711 mean on Cadillac?▼
P0711 stands for "Transmission Fluid Temperature Sensor Circuit Range/Performance." P0711 means the transmission fluid temperature (TFT) sensor's signal is outside its expected range or not changing as the computer expects (range/performance). This sensor monitors how hot the transmission fluid is so the computer can adjust shift timing, torque converter lockup, and protect the transmission from overheating. A range/performance fault usually means the sensor is reading an implausible or 'stuck' value rather than being completely open or shorted. It can cause harsh or delayed shifts, no torque converter lockup, or the transmission defaulting to a protective mode. On Cadillac specifically, this code is documented across 1 model.
What causes P0711 on Cadillac vehicles?▼
Common causes on Cadillac: Faulty transmission fluid temperature sensor, Low, old, or contaminated transmission fluid, Wiring or connector problems in the sensor circuit, Internal transmission overheating or restriction, Sensor reading stuck or drifting out of range. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0711 on a Cadillac?▼
Repair costs on Cadillac range from $300 to $5,500, depending on the specific model and root cause.
Which Cadillac models have P0711 documented?▼
Au7o has documented P0711 on 1 Cadillac model: CT6.