Buick Verano Fault Codes
You can find common Buick Verano fault codes on this page that when clicked take you to a detailed description.
You can also type in the fault code you are getting below to find a more detailed description.
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Buick Verano 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 Buick Verano has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Buick Verano Recalls »
Common Verano Fault Codes
These are the most common Verano fault codes that people are searching for.
Intake Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Fuel Rail Pressure Sensor Circuit Range/PerformanceLearn More Fixes
Catalyst System Efficiency Below Threshold (Bank 1)Learn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor BLearn More Fixes
System Too Lean (Bank 1)Learn More Fixes
Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
System Too Rich (Bank 1)Learn More Fixes
Fuel Pump Control Module Requested MIL IlluminationLearn More
Intake Air Temperature Sensor 2 Circuit Low InputLearn More
Intake Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor ALearn More Fixes
Evaporative Emissions System Small Leak DetectedLearn More Fixes
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)Learn More Fixes
Lost Communication With ECM/PCM "A"Learn More Fixes
Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance ProblemLearn More
Evaporative Emission Control System Vent Valve/Solenoid Circuit MalfunctionLearn More Fixes
Fuel Pressure Regulator PerformanceLearn More Fixes
Ignition 1 Switch Circuit 2Learn More
Rocker Arm Actuator System PerformanceLearn More
Post Catalyst Fuel Trim System Too Rich Bank 2Learn More Fixes
Lost Communication with TCMLearn More
Camshaft Position Sensor Circuit Range/PerformanceLearn More Fixes
Bank 1 Air/Fuel Ratio ImbalanceLearn More Fixes
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
Lost Communication With Body Control ModuleLearn More
Manifold Absolute Pressure/Barometric Pressure Circuit High InputLearn More
Evaporative Emission Control System Leak DetectedLearn More Fixes
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance ProblemLearn More Fixes
Evaporative Emission System High Purge FlowLearn More Fixes
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)Learn More Fixes
Camshaft Position B - Timing Over-Advanced or System Performance (Bank 2)Learn More
Engine Position System Performance - Bank 1Learn More
Maximum Adaptive & Long Term ShiftLearn More
HO2S Insufficient Switching Sensor 1Learn More
MAF Sensor Out Of Self Test Range./KOER Not Able To Complete KOER AbortedLearn More
A/C Compressor Temperature Sensor MalfunctionLearn More
Accelerator/Throttle Pedal Position Sensor FaultLearn More
Theft Deterrent Fuel Enable Signal Not Received/ B+ Supply To VCRM A/C Circuit MalfunctionLearn More
Intake Camshaft Position Timing - Over-Retarded (Bank 1)Learn More Fixes
Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2Learn More Fixes
Mass or Volume Air Flow Circuit Low Voltage InputLearn More Fixes
Intake Air Temperature Circuit High InputLearn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)Learn More Fixes
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)Learn More Fixes
System Too Rich (Bank 2)Learn More Fixes
Cylinder 1 Misfire DetectedLearn More Fixes
Cylinder 2 Misfire DetectedLearn More Fixes
Cylinder 3 Misfire DetectedLearn More Fixes
Cylinder 4 Misfire DetectedLearn More Fixes
Cylinder 5 Misfire DetectedLearn More Fixes
Cylinder 6 Misfire DetectedLearn More Fixes
Knock Sensor 1 Circuit (Bank 2 or Single Sensor)Learn More Fixes
Knock Sensor 2 Circuit Low Input (Bank 2)Learn More Fixes
Crankshaft Position Sensor A Circuit MalfunctionLearn More Fixes
Exhaust Gas Recirculation Flow Insufficient DetectedLearn More Fixes
Catalyst System Efficiency Below Threshold (Bank 2)Learn More Fixes
Evaporative Emission Control System Incorrect Purge flowLearn More Fixes
Evaporative Emission Control System Vent Control Circuit MalfunctionLearn More Fixes
System Gross Leak Evaporative EmissionLearn More Fixes
Fuel Level Sensor Circuit High InputLearn More Fixes
Idle Control System RPM higher Than ExpectedLearn More Fixes
Transmission Control System MalfunctionLearn More Fixes
Post Catalyst Fuel Trim System Too Lean Bank 1Learn More Fixes
Post Catalyst Fuel Trim System Too Rich Bank 1Learn More Fixes
Throttle/Pedal Position Sensor/Switch A / B Voltage CorrelationLearn More Fixes
Throttle/Pedal Position Sensor/Switch D/E Voltage CorrelationLearn More Fixes
- Manufacturer: Buick
About the Verano
The Verano, like many other Buick offerings, has been sold in both the United States and China. The model was first unveiled in 2010 for China and 2012 for the US. While it is still on sale today for the Chinese market, it was discontinued in the US in 2017.
The model has seen three generations hit the various markets, with the latest, called the Verano Pro, coming along in 2021.
While not the closest of rivals, the Verano does sit in the same class as the Acura ILX, Audi A3, and Mercedes-Benz CLA-Class.
One of the most common issues for the model is P0011. This code indicates that the intake camshaft in the first bank of the engine is over-advanced.
A lot of the time, this code can be caused by a faulty camshaft position sensor. However, this would typically be logged with an additional fault code. Engine oil issues are another big contributing factor to this type of problem.
Another common problem that the Verano faced is P0191. This code is logged when an issue has been detected with the fuel rail pressure sensor.
A faulty fuel rail pressure sensor is one of the most likely causes. It is also important for owners to check the sensor circuits for faults.
Fault code P0420 is another issue that a number of Verano owners have reported over the years. This code indicates that the catalytic converter in the first bank of the exhaust is not performing properly.
Older models with high mileage can suffer this code as a result of wear. Catalytic converters need to be replaced at specified service intervals and neglecting this can cause the code to be logged. Exhaust leaks can also have this effect.