Hummer H2 2007 Owner's Manual

The recommended oil type for a Hummer H2 2007 is 5W-30 synthetic oil.
To reset the TPMS, turn the ignition to the ON position without starting the engine, press the INFO button until the TIRE PRESSURE screen appears, then press and hold the SET/RESET button until the horn chirps twice.
The towing capacity of the Hummer H2 2007 is approximately 6,500 pounds when properly equipped.
To replace the air filter, locate the air filter housing in the engine compartment, unclip the cover, remove the old filter, and insert a new one before securing the cover back into place.
The recommended tire pressure for a Hummer H2 2007 is 35 PSI for both front and rear tires.
To improve fuel efficiency, maintain proper tire pressure, regularly service the engine, avoid excessive idling, and drive at moderate speeds.
If the check engine light comes on, first check for any loose gas caps. If the light remains on, use an OBD-II scanner to diagnose the issue or visit a professional mechanic.
To replace a headlight bulb, open the hood, remove the protective cover from the back of the headlight assembly, disconnect the electrical connector, replace the bulb, and reassemble.
The proper maintenance schedule includes oil changes every 3,000-5,000 miles, brake inspections every 10,000 miles, and transmission fluid changes every 30,000 miles, among other checks outlined in the owner's manual.
If the air conditioning is not cooling, check the refrigerant level, inspect the fuses, and ensure the compressor is functioning. If the issue persists, it might be necessary to consult a certified technician.