Cadillac 2010 CTS Sport Sedan Owner's Manual

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8-32 Driving and OperatingUp-Shift LightCTS vehicles with a manualtransmission have an up-shift lighton the instrument panel. This lightshows when to shift to the nexthigher gear for the best fueleconomy.When this light comes on, you canshift to the next higher gear ifweather, road, and traffic conditionsallow. For the best fuel economy,accelerate slowly and shift when thelight comes on.While you accelerate, it is normalfor the light to go on and off if youquickly change the position of theaccelerator. Ignore the light whenyou downshift.CTS-V vehicles use tracer lightsaround the outside of thetachometer as a performanceup-shift light. These tracers flash toindicate when to shift to the nexthigher gear to avoid the enginespeed limit. See Tachometer onpage 4‑17 for more information.Skip Shift (CTS-V)Under light acceleration, thetransmission will only allow you toshift from 1 (First) to 4 (Fourth).Shifts from 1 (First) to 2 (Second) or3 (Third) are not allowed. This helpsimprove fuel mileage.Under harder acceleration, SkipShift is disabled, and the driver hasall gears available.Drive SystemsAll-Wheel DriveWith this feature, engine power isalways sent to all four wheels. It isfully automatic, and adjusts itself asneeded for road conditions.When using a compact spare tire onan AWD vehicle, the systemautomatically detects the compactspare and disables AWD. To restoreAWD operation and preventexcessive wear on system, replacethe compact spare with a full-sizetire as soon as possible. SeeCompact Spare Tire on page 9‑102for more information.