1994 Chevrolet Astro Owner's Manual - Page 79

@ (Overdrive) This position is for normal driving. If you need more powerfor passing, and you're: - Going less than about 35 mph (56 k d h ) , push your accelerator pedal about halfway down. Going about 35 mph (56 k d h ) or more, push the accelerator pedal all the way down. You'll shift down tothe next gear and have more power. @ should not be used when towinga trailer, carrying a heavy load, or driving on steep hills. Select "D" (Third Gear) when operating the vehicle under anyof these conditions. 0 D (Third Gear)- This is like @, but you never go into Overdrive. You should use "D' (Third Gear) when towing a trailer, carrying a heavy load or driving on steep hills. 2 (Second Gear) - This position gives you more power lower fuel but economy. You can use "2" (Second Gear) on hills. It can help control your speed as you go down steep mountain roads, but then you would also want to use your brakes off and on. If you manually select "2" (Second Gear), the transmission willdrive in second gear. You may use this feature forreducing torque to the rear wheels when youare trying to start your vehicle from a stop on slippery road surfaces. 1 (First Gear) -This position gives you even more power (butlower fuel economy) than "2" (Second Gear). You can use it on very steep hills, or in deep snow or mud. If the selector lever is put in"1" (First Gear), the transmission won't shift into "1" (First Gear) until the vehicle is going slowly enough. NOTICE: If your rear wheels can't rotate,don't try to drive. This might happen if you were stuck in very deep sand or mud or were up or against a solid object. You could damage your transmission transfer caseor both. Also, if you stop when going uphill, don't hold your vehicle there with only the acceleratorpedal. This could overheat and damage the transmission. Use your brakes or shift into Park to hold "P" your vehicle in position ona hill. 2-19