Can anyone give me some tips or recomendations on how to solve the
following:
- when driving the sorento on manual shift (triptonic) after reaching
the 2500rpm the transmision changes automatically to a higher shift.
Can this be avoided. The problem is that when you are at aprox
3000meters (9900ft) (where the oxygen becomes a problem) the car wont
respond (but it does very lowly) Is this normal?
- another thing we experimented was that we got stuck in the sand (at
3000mts going up during a curve) because we could not drive faster (at
2500rpms ...).  The car nearly stopped but suddenly it began to move at
1feet per hour until we came out from the sand. Is this normal.

Thanks.