MANUFACTURER DOCUMENTATION
GMC Canyon
Paired lean-code calibration evidence.
Documented years: 2020–2021
Match the document’s model, years, engine, market and other conditions. This page does not establish every code the vehicle can display.
Diagnostic guides
Manufacturer bulletins
Paired lean codes and calibration
Read the full diagnostic guide.
Scope: 2020–2021; production through May 1, 2021 · LGZ
Displays in the document: P0171, P0174
See the documented decision branches.
Vehicle-specific scope applies.
Sources and scope
- 21-NA-105
General Motors · Checked 2026-10-30
- 2021 Colorado owner manual — warning lamps and emissions readiness
General Motors · Checked 2026-10-30