If your vehicle has the DURAMAX Diesel engine, see the DURAMAX Diesel manual for more information.

When you open the hood on the 4.3L V6 engine, here is what you will see:

1. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter .

2. Coolant Surge Tank and Pressure Cap. See Engine Coolant and Coolant Surge Tank Pressure Cap .

3. Air Filter Restriction Indicator (If Equipped). See Engine Air Cleaner/Filter .

4. Engine Oil Dipstick. See "Checking Engine Oil" under Engine Oil .

5. Automatic Transmission Fluid Dipstick (If Equipped). See "Checking the Fluid Level" under Automatic Transmission Fluid .

6. Engine Cooling Fan. See Cooling System .

7. Engine Oil Fill Cap. See "When to Add Engine Oil" under Engine Oil .

8. Power Steering Fluid Reservoir. See Power Steering Fluid .

9. Remote Negative (-) Terminal (GND). See Jump Starting .

10. Remote Positive (+) Terminal. See Jump Starting .

11. Brake Fluid Reservoir. See "Brake Fluid" under Brakes .

12. Clutch Fluid Reservoir (If Equipped). See Hydraulic Clutch .

13. Underhood Fuse Block. See Underhood Fuse Block .

14. Battery. See Battery .

15. Windshield Washer Fluid Reservoir. See "Adding Washer Fluid" under Windshield Washer Fluid .

When you open the hood on the 5.3L V8 engine (4.8L and 6.0L V8 engines similar), here is what you will see:

1. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter .

2. Coolant Surge Tank and Pressure Cap. See Engine Coolant and Coolant Surge Tank Pressure Cap .

3. Air Filter Restriction Indicator (If Equipped). See Engine Air Cleaner/Filter .

4. Engine Oil Dipstick. See "Checking Engine Oil" under Engine Oil .

5. Automatic Transmission Fluid Dipstick (If Equipped). See "Checking the Fluid Level" under Automatic Transmission Fluid .

6. Engine Oil Fill Cap. See "When to Add Engine Oil" under Engine Oil .

7. Engine Cooling Fan. See Cooling System .

8. Remote Negative (-) Terminal (GND). See Jump Starting .

9. Power Steering Fluid Reservoir. See Power Steering Fluid .

10. Remote Positive (+) Terminal. See Jump Starting .

11. Brake Fluid Reservoir. See "Brake Fluid" under Brakes .

12. Clutch Fluid Reservoir (If Equipped). See Hydraulic Clutch .

13. Underhood Fuse Block. See Underhood Fuse Block .

14. Battery. See Battery .

15. Windshield Washer Fluid Reservoir. See "Adding Washer Fluid" under Windshield Washer Fluid .

When you open the hood on the 8.1L V8 engine, here is what you will see:

1. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter .

2. Coolant Surge Tank and Pressure Cap. See Engine Coolant and Coolant Surge Tank Pressure Cap .

3. Air Filter Restriction Indicator (If Equipped). See Engine Air Cleaner/Filter .

4. Engine Oil Dipstick. See "Checking Engine Oil" under Engine Oil .

5. Automatic Transmission Fluid Dipstick (If Equipped). See "Checking the Fluid Level" under Automatic Transmission Fluid .

6. Engine Oil Fill Cap. See "When to Add Engine Oil" under Engine Oil .

7. Engine Cooling Fan. See Cooling System .

8. Remote Negative (-) Terminal (GND). See Jump Starting .

9. Remote Positive (+) Terminal. See Jump Starting .

10. Power Steering Fluid Reservoir. See Power Steering Fluid .

11. Brake Fluid Reservoir. See "Brake Fluid" under Brakes .

12. Clutch Fluid Reservoir (If Equipped). See Hydraulic Clutch .

13. Underhood Fuse Block. See Underhood Fuse Block .

14. Battery. See Battery .

15. Windshield Washer Fluid Reservoir. See "Adding Washer Fluid" under Windshield Washer Fluid .

When you open the hood on the 6.6L DURAMAX Diesel Engine, you'll see:

1. Engine Air Cleaner/Filter

2. Coolant Surge Tank

3. Battery

4. Engine Air Cleaner/Filter Restriction Indicator

5. Engine Oil Dipstick

6. Automatic Transmission Dipstick (If Equipped)

7. Engine Oil Fill Cap

8. Engine Fan

9. Power Steering Fluid Reservoir

10. Remote Negative (-) Terminal

11. Remote Positive (+) Terminal

12. Brake Fluid Reservoir

13. Clutch Fluid Reservoir (If Equipped)

14. Underhood Fuse Block

15. Windshield Washer Fluid Reservoir

When you open the hood on your vehicle, you will see the following:

1. Starter Generator Control Module (SGCM) Coolant Surge Tank. See Cooling System .

2. Starter Generator Control Module (SGCM). See Cooling System .

3. Engine Oil Dipstick. See "Engine Oil" in the owner manual Index.

4. Automatic Transmission Dipstick. See Automatic Transmission Fluid .

5. Brake Fluid Reservoir. See "Brakes" in the owner manual Index.

6. Hybrid Underhood Fuse Block. See Fuses and Circuit Breakers .

7. Underhood Fuse Block. See "Underhood Fuse Block" in the owner manual Index.

8. Engine Air Cleaner/Filter. See "Engine Air Cleaner/Filter" in the owner manual Index.

9. Air Filter Restriction Indicator (If Equipped). See "Engine Air Cleaner/Filter" in the owner manual Index.

10. Engine Coolant Surge Tank. See "Cooling System" in the owner manual Index.

11. Engine Oil Fill. See "Engine Oil" in the owner manual Index.

12. Remote Negative (-) Terminal (GND). See Jump Starting .

13. Electrohydraulic Power Steering Fluid Reservoir. See Power Steering Fluid .

14. Remote Positive (+) Terminal. See Jump Starting .

15. 12-Volt Battery. See Battery .

16. Windshield Washer Fluid Reservoir. See "Windshield Washer Fluid" in the owner manual Index.

The following items are options that may be found on the 6.6L vehicle:

1. 12-Volt Battery

2. Rear Winch Feed (12V Power)

3. 24-Volt Generator

4. 12-Volt Generator

5. 24-Volt Fuses

6. 24-Volt Relay

7. Blackout (B/O) Lighting Relay Center

8. 24-Volt Accessory Power Connector

9. Load Disconnect Switch *

10. 24-Volt Battery

* Load Disconnect Switch located inside the vehicle on ambulance models.