P0711 on GMC
Transmission Fluid Temperature Sensor Circuit Range/Performance
P0711 on GMC vehicles indicates transmission fluid temperature sensor circuit range/performance. Au7o has documented this code across 1 GMC model — most commonly on Yukon XL. 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 GMC range from $250 to $900, 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 GMC by Model
GMC Yukon XL(1 issue)
- 6L80/6L90 Transmission Cooler Line Leak at Crimp/Fitting (Fluid Loss)2007-2016
GMT900 and early K2XX Yukon XL models with 6L80/6L90 transmissions commonly develop leaks at the transmission cooler line crimps or quick-connect fittings. Owners report red fluid spots, low transmission fluid, and in severe cases slipping or overheating if fluid loss is significant. This issue is widely documented in owner reports and GM service bulletins addressing cooler line seepage/connection concerns on full-size trucks/SUVs using these transmissions.
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View P0711 across all makes →Frequently Asked Questions
What does P0711 mean on GMC?▼
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 GMC specifically, this code is documented across 1 model.
What causes P0711 on GMC vehicles?▼
Common causes on GMC: 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 GMC?▼
Repair costs on GMC range from $250 to $900, depending on the specific model and root cause.
Which GMC models have P0711 documented?▼
Au7o has documented P0711 on 1 GMC model: Yukon XL.