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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 ยป
Recall Notice Icon
Severity Icon 9/10

Error Icon P0011

Intake Camshaft Position Timing - Over-Advanced (Bank 1)

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Severity Icon 7/10

Error Icon P0191

Fuel Rail Pressure Sensor Circuit Range/Performance

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Severity Icon 7/10

Error Icon P0420

Catalyst System Efficiency Below Threshold (Bank 1)

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Severity Icon 8/10

Error Icon P0017

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor B

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Severity Icon 7/10

Error Icon P0171

System Too Lean (Bank 1)

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Severity Icon 7/10

Error Icon P0013

Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 5/10

Error Icon P0172

System Too Rich (Bank 1)

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Error Icon P069e

Fuel Pump Control Module Requested MIL Illumination

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Error Icon P0097

Intake Air Temperature Sensor 2 Circuit Low Input

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Severity Icon 7/10

Error Icon P0010

Intake Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 8/10

Error Icon P0014

Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)

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Severity Icon 8/10

Error Icon P0016

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A

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Severity Icon 3/10

Error Icon P0456

Evaporative Emissions System Small Leak Detected

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Severity Icon 6/10

Error Icon P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

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Severity Icon 9/10

Error Icon U0100

Lost Communication With ECM/PCM "A"

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Error Icon P0121

Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem

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Severity Icon 4/10

Error Icon P0449

Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

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Severity Icon 8/10

Error Icon P0089

Fuel Pressure Regulator Performance

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Error Icon P1682

Ignition 1 Switch Circuit 2

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Error Icon P2646

Rocker Arm Actuator System Performance

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Severity Icon 3/10

Error Icon P2099

Post Catalyst Fuel Trim System Too Rich Bank 2

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Error Icon U0101

Lost Communication with TCM

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Severity Icon 6/10

Error Icon P0341

Camshaft Position Sensor Circuit Range/Performance

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Severity Icon 7/10

Error Icon P219A

Bank 1 Air/Fuel Ratio Imbalance

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Severity Icon 9/10

Error Icon P0300

Random/Multiple Cylinder Misfire Detected

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Error Icon U0140

Lost Communication With Body Control Module

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Error Icon P0108

Manifold Absolute Pressure/Barometric Pressure Circuit High Input

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Severity Icon 3/10

Error Icon P0442

Evaporative Emission Control System Leak Detected

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Severity Icon 8/10

Error Icon P0106

Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem

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Severity Icon 3/10

Error Icon P0496

Evaporative Emission System High Purge Flow

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Severity Icon 4/10

Error Icon P0128

Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)

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Error Icon P0024

Camshaft Position B - Timing Over-Advanced or System Performance (Bank 2)

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Error Icon P0008

Engine Position System Performance - Bank 1

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Error Icon P1811

Maximum Adaptive & Long Term Shift

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Error Icon P1133

HO2S Insufficient Switching Sensor 1

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Error Icon P1101

MAF Sensor Out Of Self Test Range./KOER Not Able To Complete KOER Aborted

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Error Icon P1467

A/C Compressor Temperature Sensor Malfunction

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Error Icon P1125

Accelerator/Throttle Pedal Position Sensor Fault

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Error Icon P1626

Theft Deterrent Fuel Enable Signal Not Received/ B+ Supply To VCRM A/C Circuit Malfunction

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Severity Icon 9/10

Error Icon P0012

Intake Camshaft Position Timing - Over-Retarded (Bank 1)

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Severity Icon 4/10

Error Icon P0036

Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2

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Severity Icon 4/10

Error Icon P0102

Mass or Volume Air Flow Circuit Low Voltage Input

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Severity Icon 8/10

Error Icon P0113

Intake Air Temperature Circuit High Input

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Severity Icon 6/10

Error Icon P0131

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)

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Severity Icon 7/10

Error Icon P0134

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

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Severity Icon 6/10

Error Icon P0135

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

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Severity Icon 4/10

Error Icon P0137

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

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Severity Icon 6/10

Error Icon P0141

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

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Severity Icon 5/10

Error Icon P0175

System Too Rich (Bank 2)

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Severity Icon 8/10

Error Icon P0301

Cylinder 1 Misfire Detected

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Severity Icon 8/10

Error Icon P0302

Cylinder 2 Misfire Detected

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Severity Icon 8/10

Error Icon P0303

Cylinder 3 Misfire Detected

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Severity Icon 8/10

Error Icon P0304

Cylinder 4 Misfire Detected

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Severity Icon 8/10

Error Icon P0305

Cylinder 5 Misfire Detected

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Severity Icon 8/10

Error Icon P0306

Cylinder 6 Misfire Detected

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Severity Icon 3/10

Error Icon P0325

Knock Sensor 1 Circuit (Bank 2 or Single Sensor)

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Severity Icon 8/10

Error Icon P0332

Knock Sensor 2 Circuit Low Input (Bank 2)

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Severity Icon 8/10

Error Icon P0335

Crankshaft Position Sensor A Circuit Malfunction

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Severity Icon 7/10

Error Icon P0401

Exhaust Gas Recirculation Flow Insufficient Detected

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Severity Icon 7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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Severity Icon 3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

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Severity Icon 3/10

Error Icon P0446

Evaporative Emission Control System Vent Control Circuit Malfunction

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Severity Icon 4/10

Error Icon P0455

System Gross Leak Evaporative Emission

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Severity Icon 5/10

Error Icon P0463

Fuel Level Sensor Circuit High Input

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Severity Icon 3/10

Error Icon P0507

Idle Control System RPM higher Than Expected

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Severity Icon 9/10

Error Icon P0700

Transmission Control System Malfunction

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Severity Icon 7/10

Error Icon P2096

Post Catalyst Fuel Trim System Too Lean Bank 1

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Severity Icon 6/10

Error Icon P2097

Post Catalyst Fuel Trim System Too Rich Bank 1

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Severity Icon 9/10

Error Icon P2135

Throttle/Pedal Position Sensor/Switch A / B Voltage Correlation

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Severity Icon 9/10

Error Icon P2138

Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation

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Buick Verano Image

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.