If you find your Buick Terraza‘s steering wheel shakes or vibrates when you press the brakes, it is almost always the brake rotors that are the cause of the problem. There are plenty of other issues that can cause the steering wheel to wobble. But, if your Terraza is only shaking when braking, that’s … Read more
If you own a Buick Terraza, you may have noticed white exhaust smoke coming from your van on occasion. This can be concerning, and it’s essential to understand the possible causes behind this phenomenon to address the issue promptly and efficiently. Several factors can contribute to white smoke emanating from your van’s exhaust pipe, and … Read more
P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Buick Terraza as it would … Read more
Your Buick Terraza‘s braking system is designed to handle thousands of miles of braking with no intervention from you. When its brakes begin to squeak, they are telling you that they need some attention. The most typical cause of squeaky brakes are the brake pads themselves, but there are other issues that can cause … Read more
P0405 is a generic OBDII trouble code. It deals with the signal coming from the EGR system. Since it is a generic code, it has the same meaning for the Buick Terraza as it would any other vehicle. The EGR system allows a certain amount of the Terraza’s exhaust to re-enter the combustion chamber, … Read more
P0431 is a standard OBDII trouble code, which means that it has the same meaning for the Buick Terraza as it would any other vehicle. It is closely related to P0430 (which is one of the most popular OBDII codes). Warm Up Catalyst Efficiency → Below Threshold (Bank 2) When it’s the only trouble code … Read more
P0421 is a relatively rare OBDII trouble code. It’s generic, which means it has the same definition for the Buick Terraza as it would any other vehicle. It is technically defined as “Warm Up Catalyst Efficiency → Below Threshold (Bank 1)”. In layman’s terms, it indicates that your Buick Terraza’s catalytic converter is not scrubbing pollutants efficiently … Read more
P0411 is a general OBDII trouble code, which means that it has the same meaning for the Buick Terraza as it would any other car or truck. By definition, the code is letting you know that the ECM has detected incorrect flow in the secondary air injection system. P0411: Secondary Air Injection System → Incorrect … Read more
P0740 is one of the most common transmission trouble codes. It means that the Terraza‘s computer has detected that there is an issue with the torque converter clutch (TCC) solenoid circuit. P0740: Torque Converter Clutch Circuit Malfunction The TCC “locks” the drivetrain, which allows for a true mechanical connection between the transmission … Read more
P0160 is a standard OBDII trouble code. It has the same meaning for any vehicle with OBDII, including the Buick Terraza. When a vehicle has P0160, the PCM/ECM is not detecting any activity from the sensor. It doesn’t mean that the O2 sensor isn’t getting power, but that the voltage isn’t changing, which is … Read more