Table 1 shows one common exterior lighting related problems of the 2009 Toyota Sienna.
| Problem Category | Number of Problems |
|---|---|
| Exterior Lighting problems |
Highbeams on headlamps work intermittently. Can usually flick them in the correct switch position, so I know the bulbs are working. Low beams working. But highbeams frequently do not work in the correct switch position, as described in the vehicle manual. Occasionally they do work, but I never know when that will be. On long trips at night, I have no highbeams as a result of this malfunction.