2003 Chevrolet Blazer Owner's Manual - Page 253

0 Then, during the first 500 miles (800 km) that you tow a trailer, don't drive over 50 mph (80 km/h) and don't make starts at full throttle. This helps your engine and other parts of your vehicle wear in at the heavier loads. If you have an automatic transmission, you can tow in DRIVE (D). You may want to shift the transmission to THIRD (3) or, if necessary, a lower gear selection if the transmission shifts too often (e.g., under heavy loads and/or hilly conditions). If you have a manual transmission and you are towing a trailer, it's better not to use the highest gear. See Tow/Haul Mode Light on page 3-37. the weight of the trailer, the weight of the trailer tongue and the weight on your vehicle's tires. provide the same shift feel when pulling a heavy trailer as when the vehicle is unloaded, and reduce the need to change throttle position when pulling a heavy trailer. This feature is turned on or off by pressing a button on the floor console or the shift knob. When the feature is on, a light located on the instrument panel cluster will illuminate to indicate that the tow/haul mode has been selected. See Tow/Haul Mode Light on page 3-37. The tow/haul mode is automatically turned off each time the vehicle is started. The tow/haul mode is most effective when the vehicle and trailer combined weight is at least 75% of the Gross Combination Weight Rating (GCWR). The tow/haul mode for hauling a heavy trailer is most useful under the following conditions: When driving through hilly terrain at speeds below 55 mph (88 km/h), when driving in low speed or stop and go traffic below 55 mph (88 km/h), and 0 0 Three important considerations have to do with weight: Tow/Haul Mode Your vehicle may be equipped with a tow/haul feature. The tow/haul mode is a feature that assists when pulling a heavy trailer. The purpose of the tow/haul mode is: Reduce the frequency of shifts when pulling a heavy trailer, when driving in parking lots. 4-52