You can find common GMC Sierra fault codes on this page that when clicked take you to a detailed description.
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GMC Sierra Recalls
When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.
You can check to see if your GMC Sierra has any recall notices on our sister site AutoRecalls.co, sorted by model year.View GMC Sierra Recalls »
Common Sierra Fault Codes
These are the most common Sierra fault codes that people are searching for.
Engine Coolant Temperature Circuit IntermittentLearn More
Crankshaft Position Camshaft Position Correlation Bank 2 Sensor BLearn More
Crankshaft Position Camshaft Position Correlation Bank 2 Sensor ALearn More
Crankshaft Position Sensor A Circuit Range/PerformanceLearn More
Evaporative Emission System Low Purge FlowLearn More
Active Grille Air Shutter PerformanceLearn More
Engine Position System Performance - Bank 1Learn More
Transmission Fluid Pressure Sensor/Switch E Circuit LowLearn More
Heated Oxygen Sensor (HO2S) Heater Circuit Bank 2 Sensor 1Learn More
Single Cylinder Misfire (Cylinder not Specified)Learn More
Knock Sensor 2 Circuit (Bank 2)Learn More
Fuel Pump Control Module Requested MIL IlluminationLearn More
Fuel Pump A Control Circuit / OpenLearn More
Shift Solenoid A Stuck OnLearn More
Input/Turbine Speed Sensor Circuit No SignalLearn More
Pedal Correlation PDS1 and PDS2Learn More
A/C Compressor Temperature Sensor MalfunctionLearn More
A/T FI Signal A High InputLearn More
IMRC Input Error (Bank 1)Learn More
Fuel Pump A Low Flow/PerformanceLearn More
Camshaft Position Sensor B Circuit Range/Performance (Bank 2)Learn More
DPFE Circuit Low InputLearn More
Transmission Component Slipping/ Transmission Mechanical Transfer Case 4x4 Switch Circuit FailureLearn More
SCR NOx Catalyst Efficiency Below ThresholdLearn More
EBCM Motor Relay Circuit Low When On (Chevrolet)Learn More
Evaporative Emission Control System Purge Control Valve circuit MalfunctionLearn More
Lost Communication with TCMLearn More
Lost Communication With Body Control ModuleLearn More
SCP (J1850) Invalid or Missing Data for Primary IdLearn More
Lost Communication With Fuel Pump Control ModuleLearn More
SGC (Cam Position) Sensor Circuit Malfunction/ Crankshaft Position - Camshaft Position CorrelationLearn More
HO2S Insufficient Switching Sensor 1Learn More
Cam Control FaultLearn More
- Manufacturer: GMC
About the Sierra
The GMC Sierra is a series of small, light-duty, and heavy-duty pickup trucks that first debuted in 1999, alongside its corporate cousin, the Chevrolet Silverado. There have been a total of four generations to be released, with the fourth and latest generation hitting the market in 2019.
The series ranges from the smallest Sierra 1500 and goes up to the heavy-duty 6500 HD.
The Sierra is nearly identical to its corporate cousin as it is essentially a rebadged version of the Silverado. It is also often compared to popular models from Ford’s F-150, the Dodge RAM, Nissan Titan, and Toyota Tundra.
In the two-plus decades that the model has been on the market, one of the most common issues it has faced is P0496. This code indicates that there is a high purge flow condition in the EVAP system.
One of the most common causes is a faulty or loose gas cap. This can be fixed by replacing or fastening the gas cap.
Another fault code that the model is known to suffer from is P0017. This serious code indicates that there is a correlation error between the signals from the exhaust camshaft position sensor in the first bank of the engine and the crankshaft position sensor.
One of the first steps for this code is checking that both position sensors are working properly. A faulty timing chain is another likely cause. However, old and dirty oil can also lead to this type of issue.
Another timing issue that the Sierra is known for is P0014, which indicates that the exhaust camshaft is too far ahead in its timing sequence.
This code can be a result of similar causes as the previous code. Other components to be known causes include a faulty camshaft variable timing solenoid and camshaft phaser.