Hummer H3 2006 Owner's Manual

The 2006 Hummer H3 requires 5W-30 synthetic motor oil for optimal performance and protection.
To reset the check engine light, use an OBD-II scanner to read and clear the error codes. If the issue persists, consult a mechanic.
The recommended tire pressure for the 2006 Hummer H3 is 35 PSI for both front and rear tires.
It is recommended to change the transmission fluid every 50,000 miles under normal driving conditions.
The 2006 Hummer H3 has a towing capacity of up to 4,500 pounds when properly equipped.
To replace the headlight bulb, remove the headlight housing by loosening the screws, disconnect the bulb, and replace it with a new one before reassembling.
Common issues include electrical problems and transmission faults. Regular maintenance and diagnostic checks can help prevent these issues.
To engage the 4WD system, turn the 4WD dial located on the dashboard to the desired setting, such as 4HI or 4LO, while the vehicle is stationary or moving slowly.
The fuel tank capacity of the 2006 Hummer H3 is approximately 23 gallons (87 liters).
Improving fuel efficiency can be achieved by maintaining proper tire pressure, regular engine tune-ups, and avoiding aggressive driving habits.