2004 Nissan Frontier Owner's Manual - Page 168

OFF: For driving up and down long slopes where engine braking is necessary, push the overdrive switch once. The O/D OFF indicator light illuminates at this time. OFF: When cruising at a low speed or climbing a gentle slope, you may feel uncomfortable shift shocks as the transmission shifts between 3rd gear and overdrive repeatedly. In this case, press the overdrive switch. When driving conditions change, press the overdrive switch to turn the Overdrive on. The O/D OFF indicator light goes out. Remember not to drive at high speeds for extended periods of time with the O/D OFF light illuminated. This reduces fuel economy. For driving up and down long slopes where engine braking is necessary push the Overdrive switch once. The O/D OFF indicator light in the instrument panel comes on at this time. WSD0063 When cruising at a low speed or climbing a gentle slope, you may feel uncomfortable shift shocks as the transmission shifts into and out of Overdrive repeatedly. In this case, depress the Overdrive switch to turn the Overdrive off. The O/D OFF indicator light in the instrument panel comes on at this time. When driving conditions change, depress the Overdrive switch to turn the Overdrive on. Remember not to drive at high speeds for extended periods of time with the Overdrive off. This reduces fuel economy. Overdrive switch (VG33E or VG33ER engine) Each time your vehicle is started, the transmission is automatically "reset" to overdrive ON. ON: With the engine running and the shift selector lever in the D (Drive) position, the transmission upshifts into Overdrive as vehicle speed increases. MANUAL TRANSMISSION WARNING ● Do not downshift abruptly on slippery roads. This may cause a loss of control. ● Do not over-rev the engine when shifting to a lower gear. This may cause a loss of control or engine damage. Overdrive does not engage until the engine has reached operating temperature. 5-16 Starting and driving