I don't think this needs to be "adjusted", it needs to be "repaired".
With a 2004 you must still be under warranty so let the dealer handle
it.

Chris Aseltine wrote:
>
> Is there any way this can be adjusted (by the dealer, or anyone?)
>
> Even at the highest setting, the air coming out of the vents is not very
> hot - "pretty warm" at best. It seems much cooler than I've seen in other
> cars.
>
> Recently it was around 5-10 degrees F here, and when using outside air, the
> heater air was barely hot at all. The only way to even make the car
> comfortably warm was to use "recirculate" to reheat the cabin air, but this
> fogs up the windows. The solution there I suppose is to use the A/C also
> but this wastes gas, especially in the winter!
>
> Any ideas? I know the engine runs around 195F, so there's got to be a way
> to heat up that air a little more before it comes out the vents.