GM ToolsRecommended Services
| MAINTENANCE PACKAGE SUMMARY | |
| OP CODE | PACKAGE DESCRIPTION (Factory Required Services) |
| 3K | LOF |
| 1M | MAINTENANCE I |
| 2M | MAINTENANCE II |
| 25K | 25K "EMISSION" SERVICE |
| 50K | 50K "FLUID" SERVICE |
| 100K | 100K "TUNE-UP" SERVICE |
| OP CODE | EVERY 3,000 MILES OR 3 MONTHS 2003 & OLDER VEHICLES |
| 3K | Change Engine Oil & Filter |
| OLS | Reset Oil Life System Monitor |
| 27PT | 27pt. Multi-Point Vehicle Inspection |
| OP CODE | EVERY 5,000 MILES OR OLS = < 20% MI - 2004 & NEWER VEHICLES |
| 3K | Change Engine Oil & Filter |
| OLS | Reset Oil Life System Monitor |
| RT | Rotate 4 Tires |
| TPS | Reset Tire Pressure Sensors |
| 27PT | 27pt. Multi-Point Vehicle Inspection |
| OP CODE | EVERY 10,000 MILES OR OLS = < 20% MII - 2004 & NEWER VEHICLES |
| 3K | Change Engine Oil & Filter |
| OLS | Reset Oil Life System Monitor |
| RT | Rotate 4 Tires |
| TPS | Reset Tire Pressure Sensors |
| CA | Replace Cabin Air Filter (s) |
| 27PT | 27pt. Multi-Point Vehicle Inspection |
| IRS | Inspect Restraint System Components |
| LHC | Lubricate All Hinges & Lock Cylinders |
| OP CODE | 25,000 MILE SERVICE AT 25,000-75,000-125,000 |
| 3K | Change Engine Oil & Filter |
| OLS | Reset Oil Life System Monitor |
| RT | Rotate 4 Tires |
| TPS | Reset Tire Pressure Sensors |
| 27PT | 27pt. Multi-Point Vehicle Inspection |
| IAF | Inspect Air Filter Element |
| PCV | Replace/Clean Crankcase Vent Valve/Tube |
| IFS | Inspect Fuel System for Damage or Leaks |
| IES | Inspect Exhaust System Components |
| FI* | Fuel Injection & T-body Service |
| OP CODE | 50,000 MILE SERVICE AT 50,000-150,000 |
| 3K | Change Engine Oil & Filter |
| OLS | Reset Oil Life System Monitor |
| RT | Rotate 4 Tires |
| TPS | Reset Tire Pressure Sensors |
| 27PT | 27pt. Multi-Point Vehicle Inspection |
| PCV | Replace/Clean Crankcase Vent Valve/Tube |
| FF | Replace Fuel Filter |
| TS* | Transmission Fluid Exchange |
| FI* | Fuel Injection & T-body Service |
| OP CODE | 100,000 MILE SERVICE EVERY 100,000 MILES |
| 3K | Change Engine Oil & Filter |
| OLS | Reset Oil Life System Monitor |
| RT | Rotate 4 Tires |
| TPS | Reset Tire Pressure Sensors |
| 27PT | 27pt. Multi-Point Vehicle Inspection |
| RSP | Replace 6 Spark Plugs |
| IIW | Inspect Ignition Wires |
| FF | Replace Fuel Filter |
| TS* | Transmission Fluid Exchange |
| FI* | Fuel Injection & T-body Service |
*Dealer Recommended Services |
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