Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -2016 - crc - 11/6/15Driving and Operating 213Tap Shift Mode can also bedeactivated by holding the rightupshift control briefly.While using Tap Shift, the vehiclewill have firmer, quicker shifting. Youcan use this for sport driving orwhen climbing or descending hills,to stay in gear longer, or todownshift for more power or enginebraking.The transmission will only allow youto shift into gears appropriate for thevehicle speed and enginerevolutions per minute (rpm). Thetransmission will not downshift if theengine rpm is too high in the nextlower gear, or upshift to the nexthigher gear when the maximumengine rpm is reached.If shifting is prevented for anyreason, a SHIFT DENIED messagewill be displayed in the instrumentcluster. See TransmissionMessages 0 156.When accelerating the vehicle froma stop in snowy and icy conditions,it is suggested to shift into secondgear. A higher gear allows thevehicle to gain more traction onslippery surfaces.Drive SystemsAll-Wheel DriveVehicles with this feature alwayssend engine power to all fourwheels. It is fully automatic, andadjusts itself as needed for roadconditions.
