Buick Terraza P0442 Engine Code: Causes + How to Fix

One of the most common issues that happens with the Buick Terraza is the P0442 trouble code. This code appears when connecting the vehicle to an OBDII scanner and pertains to the emissions system.  While it’s unlikely to cause a breakdown, it can be bothersome and may result in a failed emissions test for your … Read more

Buick Terraza P0441: Meaning, Causes, How to Fix

P0441 is one of the more common OBD II codes that can occur in the Buick Terraza.  It is frequently caused by a loose or bad gas cap, cracked or disconnected EVAP system hoses, vacuum leaks, or a bad purge valve. Always start by taking a look at the gas cap. P0441 is related to … Read more

Buick Terraza P0430 Code: Causes + How to Fix

This page is meant to help you troubleshoot the Buick Terraza P0430 trouble code. It covers the P0430 code’s meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents … Read more

Buick Terraza P0401: Meaning, Causes, How to Fix

P0401 is a very common OBDII trouble code that’ll pop up in the Buick Terraza. It has to do with the emissions system and stands for Exhaust Gas Recirculation (EGR)→ Insufficient Flow. The EGR system in your van is responsible for recirculating exhaust gasses in order to lower the vehicle’s emissions output. There are three … Read more

Buick Terraza P0011: What it Means + How to Fix

P0011 is a common (and serious) OBD II diagnostic trouble code that can occur in the Buick Terraza. It indicates an issue with your van’s Variable Valve Timing (VVT) system. The first thing you should do when you have this code is check your Terraza’s oil. If the oil level is too low, the camshaft … Read more

Buick Terraza P0010: Causes + Likely Fix

P0010 is a relatively common trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Buick Terraza can have VVT and is prone to developing this code. P0010 is often by low or sludgy oil. Check your Terraza’s oil as soon as possible. P0010 is a … Read more

Buick Terraza P0301: Cylinder 1 – Misfire (Causes + How to Fix)

P0301 is a fairly common trouble code with the Buick Terraza. It’s an OBD2 code and indicates that your van’s first cylinder is misfiring. P0301 is certainly a cause for concern and should be considered a threat to the drivability of your Terraza.  Fixing P0301 should be considered a high priority. Unlike a lot of … Read more

Buick Terraza P0300: Meaning, Causes, + How to Fix

P0300 is a generic OBDII code that can occur with the Buick Terraza. This code indicates that your van’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, … Read more

Buick Terraza P0500: VSS – Circuit Malfunction

  P0500 is a OBDII trouble code that affects the Buick Terraza‘s Vehicle Speed Sensor (VSS). The VSS sends a signal to the engine’s computer letting it know how fast that the vehicle is going. The Terraza uses this signal for many vehicle functions. It helps control transmission shifts, ABS, cruise control, the speedometer, and … Read more