P2096 is a generic OBD II code, which means that it has the same meaning for the GMC Terrain as it would any other vehicle. It specifically indicates that your Terrain detected that it is running too lean (too much air for the amount of fuel present). Bank 1 is the side of the … Read more
If your GMC Terrain is experiencing unusually high oil pressure, you need to find out what’s causing it right away. Unusually high oil pressure can indicate serious problems, such as a blocked oil passage, or a broken pressure relief valve. It should be treated like you have no oil pressure until you verify what is … Read more
P0606 is a generic OBD II code. Which means that it has the same meaning for the GMC Terrain that it would for any other vehicle. If your Terrain has P0606 it’s highly likely that the ECM/PCM (engine or powertrain control module, they mean the same thing) has failed. The PCM regularly performs a self … Read more
P0603 is a generic OBD2 trouble code. It indicates that your GMC Terrain’s keep alive memory has had an error. Keep alive memory is the data that your Terrain’s PCM (Powertrain Control Module) has learned about how your engine conditions. All of this sensor and driving input data is used to keep it operating efficiently. … Read more
P0522 is an OBD2 diagnostic code that is triggered when your GMC Terrain detects that the value being sent from the oil pressure sensor is below its normal operating ranged. It is typically caused by a bad oil pressure sensor or an issue with the oil system, and should be diagnosed and fixed right … Read more
The GMC Terrain utilizes a crankshaft position sensor (CKP) in order to regulate the engine timing. This sensor uses a reluctor to gauge the position of the crank. When the Terrain’s ECM determines that the signal coming from this sensor is out of range, it’ll throw the P0336 trouble code. P0336 is most commonly caused … Read more
P0308 is a fairly common trouble code with the GMC Terrain. It’s and OBD2 code and means that a misfire has been detected in the 8th cylinder in the firing order. You should only be seeing this code if you have an engine with at least 8 cylinders. So, it’s mostly a code for … Read more
P0307 is a fairly common trouble code with the GMC Terrain. It’s and OBD2 code and means that a misfire has been detected in the 7th cylinder in the firing order. You should only be seeing this code if you have an engine with at least 7 cylinders. So, it’s mostly a code for V8 … Read more
P0125 is a generic OBD-II code. If your GMC Terrain has registered it, means that the ECM/PCM is getting a signal from the engine coolant temperature sensor (ECT) that the engine is not warm enough to enter closed loop fuel control. P0125 is usually caused by a bad thermostat, low coolant, or a bad ECT … Read more
P0191 is a common OBD-II code. It indicates that the fuel rail pressure sensor is receiving a signal that is outside of its normal range. This is a generic code, which indicates that it has the same meaning for the GMC Terrain as it would any other vehicle. P0191 is typically caused … Read more