This page is meant to help you troubleshoot the Chevy Avalanche 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
P0171 and P0174 both indicate that there is a lean condition present in your Chevy Avalanche. By themselves, these are some of the most common OBD2 codes. When they are together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more
A trouble code is a signal that is generated by an automatic transmission system whenever it detects an issue in the Chevy Avalanche that requires your attention. The P0700 code is a general code that is typically accompanied by another code that specifies the specific problem. This code is part of the OBDII system and … Read more
If your Chevy Avalanche has a backup camera that is not working, here are the most common causes and how to troubleshoot them. Backup Technology is wonderful (when it works). The Avalanche is a rather large vehicle and the backup camera can make driving it a lot more convenient, not to mention safer. The beauty … Read more
One of the most common issues that happens with the Chevy Avalanche is the P0442 trouble code. This code appears when connecting the vehicle to an OBDII scanner and pertains to the emissions system. While it’s unlikely to cause a breakdown, it can be bothersome and may result in a failed emissions test for your … Read more