2010 Hummer H3 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2010 Hummer H3

2010 Hummer H3 Problems

Check Engine Light Due to Gas Cap Issue

A Loose or worn gas cap may cause Check Engine Light to illuminate.

Service transmission every 30,000 miles
Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.
Replace spark plugs every 100,000 miles

The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.

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2010 Hummer H3 Questions

Hummer H3 only getting 6-7mpg? What could be causing this? (1 answer)

I just purchased this vehicle. Can you share what could be causing it to only be averaging 6-7 mpg?

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2010 Hummer H3 Recalls

Heater And Air Conditioning Fan Speed Control Overheats

The connector module that controls the blower motor speed for the heating, ventilation and air conditioning system may overheat, causing a fire hazard. Dealers will replace part of the blower motor connector and harness free of charge to resolve the concern.

The Hood Louver Could Detach from the Vehicle

The retaining clips on the non-functional hood louver could brake. The louver could become loose and/or separate from the vehicle. If this were to happen while the vehicle is in motion, personal injury or property damage could result. Dealers will apply adhesive to the underside of the hood louver to secure it. The recall is scheduled to begin on April 12, 2010. The General Motors recall number is 10088.

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