not sure what you mean by problem i take it that you have a 4 speed auto
trans?
but the "s" is the sport shift option
when engaged this feature is for towing or passing as it extends the life
of 3rd gear or for racing, start in 1rst and "bang" through the gears like
a manual tranny watch your rpm's though
i leave it in this position because i like as much acceleration as
possible
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