P0410 GMC Sierra 1500
Secondary Air Injection System Malfunction · Powertrain Code · Medium · Repair: Moderate
What is P0410?
The secondary air injection system has a general fault.
When the GMC Sierra 1500 triggers code P0410 (secondary air injection system malfunction), it typically points to an issue in the powertrain system. Below you'll find the most common causes, symptoms, and repair options specific to the GMC Sierra 1500.
This repair is rated moderate, meaning some experience and specialty tools required.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your GMC Sierra 1500.
Common Causes on GMC Sierra 1500
- Failed secondary air injection (AIR) pump (very common on GM V8 trucks)
- Seized AIR pump due to moisture ingestion
- Failed AIR pump relay
- Check valve stuck closed preventing air from reaching exhaust manifolds
- Corroded or damaged AIR system plumbing
Symptoms
- Check Engine Light on
- Higher cold-start emissions
- Possible exhaust smell during cold start
- No other noticeable driveability symptoms in most cases
Notes for GMC Sierra 1500
The secondary AIR pump on GM V8 trucks frequently fails from moisture — some owners install check valves to prevent water from entering the pump when it is off.