Two problems related to warning light on have been reported for the 2008 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Toyota Sienna based on all problems reported for the 2008 Sienna.
Airbag warning light came on without apparent cause. We took it in to Toyota dealer, they said they replaced the passenger side airbag harness , but could not complete repair, airbag warning light still on. Toyota still waiting for another plug to repair 2 months later. Very serious issue as they said airbags will not work properly.
Airbag indicator warning light flashes continuously. Jiggled wires under front passenger seat a year ago, and the warning light quit flashing for a couple months. But then it started flashing again about six months ago. A warranty enhancement notification - ztx was received from Toyota a few days ago. Local dealer said that diagnosis would take two hours & cost $130. Read on the internet to try disconnecting the yellow wire (airbag sensor) under the front passenger seat and wait 15 seconds. Tried that and the flashing light has gone off again. This yellow connector pin and wiring should be fully replaced by Toyota under a full recall so that this doesn't become a recurring, regular issue for Sienna owners.
| Air Bag Not Deploy problems | |
| Air Bag Light On problems | |
| Air Bag problems | |
| Warning Light On problems | |
| Side/window Air Bag problems |