Buick LaCrosse P0430 Code: Causes + How to Fix

This page is meant to help you troubleshoot the Buick LaCrosse 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 LaCrosse P0420: Meaning, Causes, + How to Fix

This page is meant to help you troubleshoot the Buick LaCrosse P0420 trouble code. It covers the P0420 code’s meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table … Read more

P0128 Buick LaCrosse: Meaning, Causes, How to Fix

The P0128 OBD II trouble code indicates that your Buick LaCrosse’s engine coolant temperature has not reached its required operating temperature within a certain amount of time after starting the car. This code can appear as soon as you start your vehicle, or it can also occur while driving. It’s essential to address this issue … Read more

Buick LaCrosse Burning Smell: Causes + How to Fix

A burning smell is one of the most troublesome problems you can experience in a vehicle.  If your Buick LaCrosse has a burning smell, there are many potential causes.   Typically, the smell is caused by some type of fluid (oil, trans fluid, etc…) hitting the exhaust or other hot parts of the engine or … Read more

Buick LaCrosse Only One Wiper Working: 4 Main Causes

If you find yourself in a situation where only one of Buick LaCrosse’s windshield wipers is working, there’s a lot you can do to get it fixed at home. We know that when only one windshield wiper is working, your LaCrosse’s windshield wiper motor is still functional.  So we don’t need to check the windshield … Read more

Buick LaCrosse P0441: Meaning, Causes, How to Fix

P0441 is one of the more common OBD II codes that can occur in the Buick LaCrosse.  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 LaCrosse Horn Not Working: 5 Most Common Causes

A functioning horn is one of a vehicle’s most critical safety features. If your Buick LaCrosse’s horn isn’t working, there are a few potential causes. We’ll cover each of them, starting with the easiest and most likely issues and working from there. A test light can make diagnosing a horn that isn’t working much easier. … Read more

Buick LaCrosse’s Steering Wheel Shaking: Every Reason Why

If your Buick LaCrosse’s steering wheel is shaking, you should deal with it immediately. A shaking steering wheel in the Buick LaCrosse is caused by anything from the wheels and tires through the suspension (ball joints, tie rods, etc.) to the braking system.  We’ll start with the easiest things to check and move towards things … Read more