Four problems related to air bag light on have been reported for the 2008 Subaru Impreza. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Subaru Impreza based on all problems reported for the 2008 Impreza.
Front passengers sitting correctly that weigh between ~95 and 120lbs do not activate the airbag or the airbag light is intermittent.
Passenger air bag light goes on and off. My wife weights 120 and it some time goes on and stays on then the next minute it goes off. I have had the dealer address this issue twice now and same response. "don't worry it will deploy regardless if the light goes on or off". Honestly can't believe that. They also said (sherman oaks Subaru" that they have addressed the problem to Subaru and they said its a light issue and don't worry about it. That is not a good answer since this is a safety issue. Plus they say they can't duplicate the problem. In the iwsti chat room their are about 10 complaints of the same problem for the 2008 Subaru wrx sti. This needs to get addressed!.
Passenger airbag failures in 2008 Subaru Impreza outback sport: I purchased a 2008 Subaru Impreza outback sport one month ago, 4/17/08. I realized a few days after owning the car that the passenger airbag is only activated by passengers over 130 pounds. I am 49 years old, 5'4" and weigh 125#. The airbag is off anytime I am in the passenger seat, no matter how I sit in the seat. Same result (off) happens with my 16 year old daughter who is 120# and a couple of her friends who are between 105-115#. I then had two children, 87# and 95# sit in the passenger seat. The passenger airbag was off. The passenger airbag light is on when my sons are in the seat. They weigh 150# and 160#. I called Subaru service and they said the passenger airbag is set to be on for persons over 80# and they recommended I bring the car in to get checked. I took my car to Subaru service and they said "the passenger airbag is operating properly according to government standards. " I called Subaru corporate office and they said the same thing. I went back to the Subaru dealer and sat in two identical Impreza outback sports and the exact same result that the passenger airbag was off. I also sat in four 2009 Subaru foresters and the passenger airbag was off in 2 of the 4. I sat in two 2008 legacy outback wagons and the passenger airbag was on. I sat in two 2008 tribecas and the passenger airbag was on. Subaru is not being cooperative in resolving the situation.
The contact owns a 2008 Subaru Impreza. The contact stated that the air bag light illuminates to the on position intermittently. The vehicle has been taken to a dealer twice, but the cause of the failure was not identified. There are no recalls on the vehicle relating to this failure. The VIN was unknown. The current mileage was 5,500 and failure mileage was 3,000.