1998 Toyota T100 Owners Manual - Page 66
1998 Toyota T100 Manual
Page 66 highlights
T100(U) Automatic transmission Vehicles with cruise control-When the cruise control is being used, even if you downshift the transmission by turning off the overdrive switch, engine braking will not be applied because the cruise control is not cancelled. For ways to decrease the vehicle speed, see "Cruise control" in this chapter. 66