P0000 is a rare OBD2 fault code that can affect the Buick Rainier. While there are over 10,000 DTC “P” codes, this is the only one reserved for “no fault detected” in your vehicle’s ECU (engine control unit) memory. It tells the scanner accessing the ECU that no codes are …
Read More »Buick Rainier Humming Noise Getting Louder With Speed: How to Fix
If your Buick Rainier has a humming noise at high speed, it can be distracting and, depending on the cause, dangerous. We’ve outlined the most common reasons why a humming noise in your vehicle gets louder with speed. We’ve also provided an audio sample of each issue to help determine …
Read More »Buick Rainier Dash Light Flicker and No Start: How to Fix
Dash lights flickering and failure to start is a very common issue that can happen to the Buick Rainier. While your first impulse may be to think that there is something wrong with your vehicle’s starter (and it is possible), it’s usually caused by an issue with the battery or …
Read More »Buick Rainier P0088: Causes + Likely Fix
P0088 is a common OBD2 trouble code that can occur in the Buick Rainier. In layman’s terms, it indicates that your SUV’s fuel pressure is too high. While P0088 is a generic code, repair steps will vary depending on your Rainier’s model year, engine type, and how it regulates fuel …
Read More »Buick Rainier: P0008 Code Diagnosis
P0008 is a somewhat uncommon OBD2 trouble code that can occur in the Buick Rainier. It indicates that the crankshaft and camshaft are not synchronized properly, and should be considered a breakdown risk. Driving your Rainier with P0008 can lead to engine damage and a costly repair. While P0008 is …
Read More »Buick Rainier P0193: Symptoms, Causes, & Likely Fixes
P0193 is a generic OBD-II code that can occur in the Buick Rainier. It indicates that your Rainier’s fuel rail pressure sensor is sending a signal to the PCM that is above its normal operating range (in terms of voltage value). While P0193 is a generic code (it has the …
Read More »Buick Rainier: Engine Power Reduced
Many late model GM-made vehicles, such as the Buick Rainier use an “Engine Power Reduced” mode when they detect a potentially catastrophic problem. Reduced engine power has been known to come on at very inopportune times (such as while driving on the highway). Many components can cause the engine power …
Read More »Buick Rainier P0705: Meaning, Causes, & Diagnosis
P0705 is a very common transmission-related trouble code that can occur in the Buick Rainier. In layman’s terms, it means that your Rainier can’t tell what gear you’ve selected, which can have some real consequences on how it drives. It’s most likely caused by a bad Transmission Range Sensor (TRS), …
Read More »Buick Rainier P015D: Meaning, Causes, & Diagnosis
P015D is a generic trouble code, which means that it has the same definition for the Buick Rainier as it would any other vehicle. The code indicates that the Oxygen (O2) sensor on bank 2 is not cycling from lean to rich as fast as it should be. P015D is …
Read More »Buick Rainier P015B: Meaning, Causes, & Diagnosis
P015B is a generic trouble code, which means It indicates that the Oxygen (O2) sensor on bank 1 is not cycling from lean to rich as fast as it should be. P015B is usually caused by a bad oxygen sensor, but there can also be other causes. P015B Definition: O2 …
Read More »