Cadillac CT6 Tire Pressure Light: Causes + How to Fix

The TPMS light indicates that your Cadillac CT6’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 Cadillac … Read more

Cadillac CT6 Shakes When Idle:  Causes and How to Fix 

It can be very jarring when your Cadillac CT6 shakes when idle.  If your CT6 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 Cadillac CT6 Shaking … Read more

Cadillac CT6 P0174: Meaning, Causes, How to Fix

One of the most common trouble codes with the Cadillac CT6 is P0174. It indicates that your Cadillac CT6 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

Cadillac CT6 P0171: Causes, Diagnosis, + How to Fix

One of the most common trouble codes with the Cadillac CT6 is P0171. It indicates that your Cadillac CT6 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

Cadillac CT6 Engine Knocking Causes + How to Fix

One of the most alarming sounds you can hear from your Cadillac CT6 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 CT6’s oil. If it’s low, fill it up. If it appears frothy, there may be coolant getting into … Read more

Cadillac CT6 Speedometer Not Working: Causes + How to Fix

One of the most inconvenient things that can happen to your Cadillac CT6 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

Cadillac CT6 Airbag Light:  Meaning + How to Fix

When you start your Cadillac CT6, 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

Cadillac CT6 Whining Sound: Identification + How to Fix

If your Cadillac CT6 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

Cadillac CT6 P0430 Code: Causes + How to Fix

This page is meant to help you troubleshoot the Cadillac CT6 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

Cadillac CT6 P0420: Meaning, Causes, + How to Fix

This page is meant to help you troubleshoot the Cadillac CT6 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