Monitors, Trips, Drive Cycles and Readiness Codes

Inspection/Maintenance System Check

Refer to the appropriate diagnostic procedure below for the vehicle being servced.

* Inspection/Maintenance System Check (Inspection/Maintenance System Check)for the 4.8L, 5.3L, 6.0L, 6.2L or 7.0L engines
* Inspection/Maintenance System Check (Inspection/Maintenance System Check)for the Hybrid (HP2) 6.0L (LZ1) engine