2008 Hummer H3 Alpha Problems and Repair Information

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Accelerator Pedal Position
What does P2128 Accelerator Pedal Position (APP) Sensor 2 Circuit high voltage mean?
(Posted by andryjeep 11 years ago)
H3 Alpha Heater Core Replacement
Where can i acquire the procedure for replacing the 2008 H3 Alpha heater core.
(Posted by Jbottorff 11 years ago)

2008 Hummer H3 Alpha Videos

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Popular 2008 Hummer H3 Alpha Manual Pages

Owner's Manual - Page 1

... Four-Wheel Drive ...5-46 Front Axle ...5-46 Headlamp Aiming ...5-46 Bulb Replacement ...5-49 Windshield Wiper Blade Replacement ...5-52 Tires ...5-54 Appearance Care ...5-91 Vehicle Identification ...5-100 Electrical System ...5-101 Capacities and Specifications ...5-107 Maintenance Schedule ...6-1 Maintenance Schedule ...6-2 Customer Assistance Information ...7-1 Customer Assistance...
Owner's Manual - Page 71

...specific vehicle. To purchase a service manual, see Service Publications Ordering Information on page 1-68 for you are probably part of the airbag system. Be sure to ...person performing work for more information about servicing your vehicle. A thick layer of additional material, such as a blanket or cushion, or aftermarket equipment such as seat covers, seat heaters, and seat massagers...
Owner's Manual - Page 101

... get the most out of your vehicle has four-wheel drive and has a manual transmission, disregard the shift light when the transfer case is normal for extra traction. Do not shift down more information, see Up-Shift Light on , you could injure yourself or others. For the best fuel economy, accelerate slowly and shift when the light comes on...
Owner's Manual - Page 104

.../or moving less than 3 mph (5 km/h) and the transmission is moving less than 3 mph (5 km/h) with the engine running. Press and release the Four-Wheel High or Four-Wheel-High Lock button. Start the vehicle by turning the ignition to Four-Wheel High. 2-30 Shift the transfer case to START. 3. Always wait until the indicator light stops...
Owner's Manual - Page 105

...). Then turn the ignition to ON with the engine off , by turning the key to ACC. 8. Notice: Shifting the transmission into NEUTRAL can cause your vehicle to roll even if the automatic transmission is in PARK (P) or the manual transmission is in gear. 5. {CAUTION: Shifting an all-wheel-drive vehicle's transfer case into gear before the indicator light stops fl...
Owner's Manual - Page 107

... can roll. See Parking Brake on page 4-50. 1. even if your transfer case is in NEUTRAL. 2. Remove the key and take it will go. 3. So, be dangerous to LOCK/OFF. 4. if your shift lever is in a drive gear, four-wheel high (4H) or four-wheel low (4L) - Shifting Into PARK (P) (Automatic Transmission) {CAUTION: With all-wheel drive, your vehicle will not...
Owner's Manual - Page 152

... cluster may be necessary to be as bright as usual. To use . Roof Mounted Off-Road Light Switch Lower Grille Off-Road Light Switch Off-Road Lamps The off road. Notice: Turning on page 3-19. Make sure the instrument panel brightness control is used in use the lamps, remove the covers from the lamps and press the switch to DRL if it...
Owner's Manual - Page 156

... the ashtray is heating. When it's ready, it is removed, this system. Notice: Holding a cigarette lighter in while it will be used as a cupholder. Climate Controls Climate Control System The heating, cooling, and ventilation of the vehicle can also be lit when the air conditioning is heating does not let the lighter back...
Owner's Manual - Page 170

... can prevent more serious damage to pass a required Emission Inspection/Maintenance test. Diagnosis and service might be required. • Light On Steady - Notice: Modifications made to the engine, transmission, exhaust, intake, or fuel system of your vehicle or the replacement of the original tires with this light to costly repairs that might not run as...
Owner's Manual - Page 203

... on the Driver Information Center (DIC). Place the transfer case in the button to stop flashing and remain illuminated before attempting situations and/or navigating terrain which will be displayed on page 3-43 for more information. Press the button with your vehicle's drivetrain. The repairs would not be covered by your warranty. See Full-Time Four-Wheel Drive on...
Owner's Manual - Page 216

... in , using the engine as a brake (transmission and transfer case lowest gears). You have a serious - Crossing Obstacles Approach Angle - You could have to use the low ranges in the transmission and transfer case to avoid sudden acceleration, sudden turns, or sudden braking. a Key to Mobility If you will be affected by even a small amount of alertness from driving on any road. See Drunk...
Owner's Manual - Page 244

... prepared to be towed in these ways. Towing Towing Your Vehicle Consult your dealer/retailer or a professional towing service if you need to have your vehicle ready to be towed? Be sure you read the tow vehicle manufacturer's recommendations. • How far will you do recreational vehicle towing: • What's the towing capacity of recreational vehicle towing are some important...
Owner's Manual - Page 263

... manganese tricarbonyl (MMT). Your vehicle has an airbag system. Before attempting to as TOP TIER Detergent Gasoline. 5-5 See Maintenance Record on page 6-16. Gasoline Specifications At a minimum, gasoline should keep the engine clean and maintain optimum vehicle performance, we recommend the use of your vehicle can affect fuel economy and windshield washer performance.
Owner's Manual - Page 273

D. Automatic Transmission Fluid Dipstick (If Equipped). Engine Oil Fill Cap. Brake Fluid Reservoir. J. K. The engine oil dipstick handle is a good idea to get fuel. If you get an accurate reading, the oil must be warm and the vehicle must be on page 5-15. Remove it back in all the way. See Engine Air Cleaner/Filter on page 5-27. G. Power Steering...
Owner's Manual - Page 320

... ride • Needless damage from road hazards A vehicle specific Tire and Loading Information label is all right. Never load your vehicle's maximum load carrying capacity. If your tires do not have too much heat • Tire overloading • Premature or irregular wear • Poor handling • Reduced fuel economy If your tires have enough air (under -inflation...
Owner's Manual - Page 329

... Tire Performance Criteria Specification (TPC spec) system rating. GM's exclusive TPC Spec system considers over time, even if they get tires with the same TPC Spec rating. GM recommends replacing tires in flation pressure maintenance. The original equipment tires installed on page 5-55 for additional information. This is molded onto the tire's sidewall near the tire size...
Owner's Manual - Page 350

.../retailer has a product for the surfaces being cleaned. While cleaning your vehicle's interior, maintain adequate ventilation by opening your vehicle's glass. Dust may result from using cleaners, read and adhere to your vehicle's interior may be removed from any interior surface. • Never use only a soft cloth and glass cleaner. For liquid cleaners, about 20 drops...
Owner's Manual - Page 357

.... Although no charge to the owner, the surfaces of the frame should be loosened before being flushed. Vehicle Care/Appearance Materials Description Polishing Cloth Tar and Road Oil Remover Chrome Cleaner and Polish White Sidewall Tire Cleaner Vinyl Cleaner Glass Cleaner Chrome Wheel Cleaner Finish Enhancer Usage Interior and exterior polishing cloth. Removes dirt, grime, smoke and...
Owner's Manual - Page 369

...Lubricants on page 6-12 and Normal Maintenance Replacement Parts on the Tire and Loading Information label. All parts should be replaced and all necessary ...driving limits. • are driven off-road in Scheduled Maintenance on a vehicle can be performed when indicated. This schedule is serviced, make sure these are used. See Gasoline Octane on page 4-12. • use the recommended fuel...
Owner's Manual - Page 399

... Maintenance Schedule for owners and intended to assist in the diagnosis and service of your vehicle has a safety defect, notify Transport Canada immediately, in addition to : Transport Canada Road Safety Branch 2780 Sheffield Road Ottawa, Ontario K1B 3V9 Service Publications Ordering Information Service Manuals Service Manuals have the diagnosis and repair information on engines, transmission...

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