Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTC P2463 is a Type A DTC.
The ECM commands the engine control system to operate in Reduced Engine Power mode.
A message center or an indicator may display Reduced Engine Power.
The DPF regeneration is inhibited.