Honda has announced that they will be offering extended warranty on some 2006-2011 Honda Civic Hybrid vehicles, due to small cracks that could develop in the gas tanks. According to Honda, the cracks are not a safety problem because the potential fuel leak is very small, and comes from the top area of the tank, by the fuel filler, where there is no ignition source nearby. The driver may smell gas vapors and in rare instances may see a small amount of fuel spilled on the ground. The problem is more likely to occur in states known for very hot weather.

In order to promote consumer confidence, the automaker sent a letter to owners informing them of the extended warranty of 10 years or 120,000 miles from the time the vehicle was new. Honda has also reported the problem to the National Highway Traffic Safety Administration (NHTSA), where it is being reviewed.