Chevy Tahoe P0193: Symptoms, Causes, & Likely Fixes

P0193 is a generic OBD-II code that can occur in the Chevy Tahoe. It indicates that your Tahoe’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 same meaning for any vehicle … Read more

Chevy Tahoe C0040: Meaning, Causes, + Likely Fix

C0040 is a chassis trouble code that occurs in the Chevy Tahoe. GM designated C0040 to indicate an issue with the right front wheel speed sensor. Replacing your Tahoe’s right front wheel speed sensor is the most common repair for C0040, but it’s not the only one. Wiring harness issues are common with this code. … Read more

Chevy Tahoe C0035: Causes, Diagnosis, + Likely Fix

C0035 is a manufacturer-specific chassis trouble code that can occur in the Chevy Tahoe. GM designated C0035 to indicate an issue with the left front wheel speed sensor. Replacing your Tahoe’s left front wheel speed sensor is the most common fix for C0035, but it’s not the only one. C0035 Definition C0035: Left Front Wheel … Read more

Chevy Tahoe P0523: Meaning, Causes, + Likely Fixes

P0523 is a standard OBD2 trouble code that can occur in the Chevy Tahoe. In layman’s terms, it indicates the signal from the oil pressure sensor is higher than its normal operating range (in terms of voltage). P0523 is generic (it has the same definition for all vehicles), repair steps will depend on your Tahoe’s … Read more

Chevy Tahoe P0705: Meaning, Causes, & Diagnosis

P0705 is a very common transmission-related trouble code that can occur in the Chevy Tahoe. In layman’s terms, it means that your Tahoe 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), but there are other causes … Read more

Chevy Tahoe P015D: Meaning, Causes, & Diagnosis

P015D is a generic trouble code, which means that it has the same definition for the Chevy Tahoe 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 usually caused by a bad … Read more

Chevy Tahoe P015B: Meaning, Causes, & Diagnosis

P015B is a generic trouble code, which means it has the same meaning any vehicle. In the case of the Chevy Tahoe, 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 … Read more

Chevy Tahoe: DRL Warning Light On – Causes + Fix

Daytime running lights (or DRL) are specialized lights that come on when your Chevy Tahoe’s regular headlights are turned off. Their purpose is to make it easier for other drivers to see you, theoretically decreasing the odds of getting into an accident. If your Tahoe’s DRL warning light is on, the powertrain control module (commonly … Read more

Chevy Tahoe P2271: Meaning, Causes, + Diagnosis

P2271 is a generic DTC trouble code that can affect the Chevy Tahoe. It indicates that the oxygen sensor located on bank 1 in the second position is continuously sending voltage with a value that is too rich. There are oxygen sensors on both sides of the catalytic converter. The “upstream” one is used for … Read more

Chevy Tahoe P2279 Code: Meaning, Causes, and Diagnosis

P2279 is a generic OBD-II code. It indicates there is a vacuum leak coming from your Chevy Tahoe’s air intake system. While P2279 is a generic code (it has the same definition for the Tahoe as it would any other vehicle made after 1996), repair steps will vary based on model year and engine. The … Read more