PACCAR Inc. TX-8 — Upshifting and Downshifting

INDICATIONS AND CONTROLS - Gearshift Lever transmission. Watch this gauge to know when the transmission is overheating and if so, have it checked by an authorized service representative. Transmission Modes NOTE Vehicles without a Park ( P ) mode must be in Neutral ( N ) to start the engine. 3 Gearshift Lever The gearshift is located on the right-hand side of the steering column and can perform the following transmission functions: Switch transmission modes Upshift and Downshift Activate Manual mode Upshifting and Downshifting Select the transmission mode by rotating the lever outer knob. There is a position for Drive ( D ), Neutral ( N ), and Reverse ( R ) and for some vehicles Park ( P ).

Rotating the knob to the Park ( P ) or Reverse ( R ) position while the vehicle is moving forward, or to the Park ( P ) or Drive ( D ) position while the vehicle is moving backward, will not change the transmission mode to those selections. The Digital Display will indicate the corresponding mode. The transmission gear can be selected manually to accommodate the driving needs of the operator. The Transmission Mode must be in Drive ( D ) to manually select the gear. When in Automatic mode 18 Y53-1331 (6/21)