Reference Information

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Description and Operation

Evaporative Emission Control System Description

Scan Tool Reference

Control Module References for scan tool information

Special Tools

CH 48096 EVAP Service Access Port Tool
GE 41413-SPT High Intensity White Light
GE 41413-A Evaporative Emissions System Tester (EEST)
J 41413-300 EVAP Cap and Plug Kit
EN 41413-VLV EVAP Service Port Vent Fitting

For equivalent regional tools, refer to Special Tools