Hummer H3 Workshop Manuals and Repair Manuals

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Hummer H3

The Hummer H3 is a four door mid-size SUV that was manufactured by General motors from 2005 to 2010. Based on the GMC canyon and GMT355 compact pickup trucks, the Hummer H3 is the smallest model among the hummer models built by general motors. Available in two variants the Hummer H3 was produced either as a mid-sized pickup truck or a traditional Midsize SUV. The H3 featured a two-speed, electronically controlled full-time four-wheel drive system that made it for both on-road and off-road driving. The H3 was rated Acceptable, the second highest rating, by the Insurance Institute for Highway Safety in both frontal offset and side-impact crashes (with side airbags) and Poor, the lowest rating, for rear-crash protection/head restraints.

Hummer H3 FAQ's

How do I change the cabin air filter in a Hummer H3?

To change the cabin air filter in a Hummer H3, locate the cabin air filter housing, usually located behind the glove compartment or under the dashboard. Remove the housing cover by unlatching or unscrewing it, then take out the old cabin air filter. Insert the new filter, making sure it is properly aligned, and reattach the housing cover. Regularly replacing the cabin air filter helps maintain clean and fresh air inside the vehicle's cabin.

How do I check the brake fluid level in a Hummer H3?

To check the brake fluid level in a Hummer H3, locate the brake fluid reservoir, usually located on the driver's side of the engine compartment. The reservoir is transparent, allowing you to easily check the fluid level. Ensure the vehicle is parked on a level surface and remove the reservoir cap. The brake fluid level should be between the minimum and maximum marks indicated on the reservoir. If the level is low, add the recommended brake fluid to bring it within the proper range. Proper brake fluid level is crucial for safe and effective braking performance.

How do I check the transmission fluid level in a Hummer H3?

To check the transmission fluid level in a Hummer H3, park the vehicle on a level surface and ensure that the engine is at operating temperature. Locate the transmission dipstick, usually marked with a yellow handle, and remove it. Wipe it clean, reinsert it fully, then remove it again to check the fluid level. The fluid should be within the designated marks on the dipstick. If it is low, add the recommended transmission fluid until it reaches the proper level.

How do I jump-start a Hummer H3?

To jump-start a Hummer H3, first, locate the positive (+) and negative (-) terminals on both vehicles' batteries. Connect the red jumper cable to the positive terminal of the dead battery and the other end to the positive terminal of the working battery. Connect one end of the black jumper cable to the negative terminal of the working battery and the other end to a grounded metal surface on the dead vehicle, such as a bolt or bracket. Start the working vehicle and let it run for a few minutes, then attempt to start the Hummer H3. Once the engine starts, remove the jumper cables in reverse order.

How do I replace a burnt-out headlight bulb in a Hummer H3?

To replace a burnt-out headlight bulb in a Hummer H3, open the hood and locate the back of the headlight assembly. Twist the headlight bulb socket counterclockwise to unlock it, then carefully pull it out. Disconnect the electrical connector from the socket, remove the old bulb, and insert the new bulb. Reconnect the electrical connector, insert the socket back into the headlight assembly, and twist it clockwise to secure it.

How do I replace a faulty spark plug in a Hummer H3?

To replace a faulty spark plug in a Hummer H3, start by removing the spark plug wire from the spark plug by firmly pulling it straight off. Use a spark plug socket and a ratchet to loosen and remove the old spark plug. Insert the new spark plug, ensuring it is properly gapped, and tighten it with the spark plug socket and ratchet. Reattach the spark plug wire by firmly pushing it onto the new spark plug. Regularly inspecting and replacing faulty spark plugs helps maintain optimal engine performance and fuel efficiency.

How do I replace the windshield wipers on a Hummer H3?

To replace the windshield wipers on a Hummer H3, lift the wiper arm away from the windshield until it locks into a raised position. Locate the release tab on the wiper blade assembly and press it to detach the old blade from the wiper arm. Align the new wiper blade with the wiper arm and push it until it clicks into place. Gently lower the wiper arm back onto the windshield. Regularly replacing worn-out wiper blades ensures clear visibility and safe driving during inclement weather.

How do I reset the maintenance light on a Hummer H3?

To reset the maintenance light on a Hummer H3, start by turning the ignition switch to the "On" position without starting the engine. Press and hold the "Reset" button located on the instrument panel until the "Oil Life Reset" message appears on the display. Release the button, and the maintenance light should be reset.

How often should the brake fluid be replaced in a Hummer H3?

The brake fluid in a Hummer H3 should be replaced approximately every two years or 30,000 miles, whichever comes first. Over time, brake fluid can absorb moisture, which can lead to decreased braking performance and potential damage to brake components. Regular brake fluid replacement helps maintain optimal brake system functionality and ensures safe braking.

How often should the engine oil be changed in a Hummer H3?

The engine oil in a Hummer H3 should be changed every 3,000 to 5,000 miles or every three to six months, whichever comes first. Regular oil changes are crucial to maintain optimal engine performance and prevent engine damage. Following the manufacturer's recommended oil change intervals is essential for the longevity of your Hummer H3's engine.

What is the recommended tire pressure for a Hummer H3?

The recommended tire pressure for a Hummer H3 is typically around 35 psi. However, it is always best to consult your specific Hummer H3 automotive repair manual or check the tire pressure placard located on the driver's side door jamb for the precise recommended tire pressure for your vehicle. Proper tire inflation is crucial for optimal handling, fuel efficiency, and tire longevity.

What is the towing capacity of a Hummer H3?

The towing capacity of a Hummer H3 varies depending on the model and configuration. In general, the towing capacity ranges from 3,000 to 4,500 pounds. It is important to consult your specific Hummer H3 automotive repair manual or contact the manufacturer for the precise towing capacity of your vehicle to ensure safe and proper towing.

What type of coolant should I use in a Hummer H3?

The Hummer H3 requires a specific type of coolant known as Dex-Cool. Dex-Cool is an extended-life coolant that provides superior protection against corrosion and freezing. It is important to use Dex-Cool coolant to ensure proper cooling system performance and prevent potential damage to the engine.

What type of engine oil filter should I use in a Hummer H3?

It is recommended to use a high-quality engine oil filter that meets the specifications outlined in your Hummer H3 automotive repair manual. Look for a filter that is specifically designed for your vehicle's engine size and type. Using the correct engine oil filter ensures proper filtration, which is essential for maintaining engine health and performance.