If the engine, controls, instruments or gages do not operate as described in this supplement manual, refer to one of the following manuals:
| • | 2005 C/K Truck Owners Manual | 
| • | 2005 C/K Truck Service Manual | 
| • | 2005 Diesel Engine Owners Manual Supplement | 
| • | 2005 LSSV Owners Manual Supplement | 
If the concern still has not been corrected, shut down the engine and notify your maintenance unit or dealership.