Buick LaCrosse Tire Pressure Light: Causes + How to Fix

The TPMS light indicates that your Buick LaCrosse’s tire pressure is above or below the minimum threshold set by the manufacturer.   The tire pressure monitoring system (TPMS) light is the most common warning light on a modern vehicle. If you have a TPMS warning light, your car’s tire pressure must be checked. If your Buick … Read more

Buick LaCrosse Shakes When Idle:  Causes and How to Fix 

It can be very jarring when your Buick LaCrosse shakes when idle.  If your LaCrosse has this problem, many issues can cause it.  We’ve lined out some of the most common causes below. The most common reasons a vehicle shakes when idling is a misfire or bad motor mount. Table of Contents Buick LaCrosse Shaking … Read more

Buick LaCrosse P0174: Meaning, Causes, How to Fix

One of the most common trouble codes with the Buick LaCrosse is P0174. It indicates that your Buick LaCrosse is running lean on the bank two side of the engine.  P0174 and P0171 (fuel trim lean bank one) are the most frequently seen air/fuel mixture-related codes. If they appear together, it reduces the list of … Read more

Buick LaCrosse P0171: Causes, Diagnosis, + How to Fix

One of the most common trouble codes with the Buick LaCrosse is P0171. It indicates that your Buick LaCrosse is running lean on the bank one side.  It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. The most … Read more

Buick LaCrosse Engine Knocking Causes + How to Fix

One of the most alarming sounds you can hear from your Buick LaCrosse is the engine knocking. Unfortunately, an engine knock can be a sign of significant engine problems. The first thing you should do is check your LaCrosse’s oil. If it’s low, fill it up. If it appears frothy, there may be coolant getting into … Read more

Buick LaCrosse Stuck in Park: Causes & How to Fix

If your Buick LaCrosse is stuck in Park, the odds are that you’re not stranded.  We’ve made this guide to quickly help you get back on the road if your car doesn’t shift into gear.  Most vehicles with an automatic transmission have a linkage that connects the gear selector to the transmission. Recently, more vehicles … Read more

Buick LaCrosse Speedometer Not Working: Causes + How to Fix

One of the most inconvenient things that can happen to your Buick LaCrosse is when the speedometer stops working.  You don’t realize how much you look at the thing until it’s always sitting at 0 MPH while driving down the road.   If your car’s speedometer is not working, it’s usually caused by an issue with … Read more

Buick LaCrosse Airbag Light:  Meaning + How to Fix

When you start your Buick LaCrosse, the airbag module runs a self-diagnostic check on all its major systems.  If any of these checks fail, you will see an airbag warning light on the dashboard.   Depending on the model year and what country you happen to be in, you may get something along the lines of … Read more

Buick LaCrosse Whining Sound: Identification + How to Fix

If your Buick LaCrosse is experiencing a whining noise, determining where and when the noise is happening is coming from is key to diagnosing and tracking down the cause.   With that in mind, this page is divided by when you hear the whining noise and common causes under those conditions. Is the whining noise … Read more