Hummer H2 2004 Owner's Manual
![Hummer H2 2004 manual cover](/images/WTLHgPiurfqHWpeupNcVLIXt/thumbs/thumb175x175.webp)
The 2004 Hummer H2 typically requires 5W-30 synthetic oil. Always refer to the owner's manual for the manufacturer's recommendation.
It's recommended to change the transmission fluid every 30,000 to 50,000 miles. Regular checks can help maintain optimal performance.
The recommended tire pressure for the 2004 Hummer H2 is 35 PSI for both front and rear tires. Always verify with the tire placard on the vehicle.
To reset the check engine light, you can disconnect the battery for about 15 minutes. If the light remains on, consult a professional to diagnose the issue.
Squeaking noises during braking may be due to worn brake pads or rotors. Have your brake system inspected and serviced by a professional.
The 2004 Hummer H2 has a towing capacity of up to 6,500 pounds with the correct towing package. Always consult the owner's manual for specific configurations.
To replace the headlight bulb, remove the retaining clips, detach the headlight housing, replace the bulb, and reassemble. Always refer to the owner's manual for detailed instructions.
Poor fuel efficiency can be caused by underinflated tires, dirty air filters, or faulty oxygen sensors. Regular maintenance can help improve fuel economy.
Check the coolant level by looking at the reservoir tank's markings. Ensure the engine is cool before opening the reservoir cap for an accurate reading.
At 100,000 miles, consider changing the spark plugs, inspecting the timing belt, replacing the fuel filter, and checking all fluids and hoses. Refer to the owner's manual for a full maintenance schedule.