1996 Ford Aerostar Owner's Manual - Page 167
1996 Ford Aerostar Manual
Page 167 highlights
gearshift lever, may flash steadily if a malfunction has been detected. If the Overdrive Off Indicator Light is flashing, contact your Ford dealer as soon as possible. If this condition persists, damage to the transmission could occur. Some vehicles are equipped with a Powertrain Control Module that limits engine speeds with a cut-out mode to promote durability. Automatic Overdrive Transmission Putting Your Vehicle in Gear Your vehicle's gearshift is on the steering column. You can put the gearshift in any one of several positions. The positions of the column-mounted gearshift RWARNING Hold the brake pedal down while you move the gearshift lever from position to position. If you do not hold the brake pedal down, your vehicle may move unexpectedly and injure someone. 186