2003 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 348

Don't tow a trailer at during the first 500 miles all (800 km) your new vehicle driven. Your engine, is axle or other parts could be damaged. Then, during the first miles (800 km) thatyou tow 500 a trailer, don't drive over mph (80 km/h) and don't 50 make startsat full throttle.This helps your engine and other parts of your vehicle wear the in at heavier loads. 0 Tow/Haul Mode Tow/haul is a feature on automatic transmission equipped vehicles that assists when pulling a heavy trailer or a large or heavy load. The purpose of the tow/haul mode is to: 0 Reduce the frequency and improve the predictability of transmission shifts when pulling a heavy trailer or a large or heavy load. Provide the same solid shift feel when pulling a heavy trailer or a large or heavy load as when the vehicle is unloaded. If you have an automatic transmission, can tow you in DRIVE (D). You may want to shift the transmission to THIRD (3) or, if necessary, a lower gear selection if the transmission shiftstoo often (e.g., under heavy loads and/or hilly conditions). If you have a manual transmission and you towing a trailer, it's better are not to use highest gear. SeeTow/Haul Mode the Light on page 3-48. the weight of the trailer, 0 Improve control of vehicle speed while requiring less throttle pedal activity when pulling a heavy trailer or a large or heavy load. Three important considerations have to do with weight: the weight of the trailer tongue and the weight on your vehicle's tires. 0 Automatic transmission equipped vehicles are provided with a button at the end of the shift lever which when pressed enables tow/haul. When the button is pressed, a light on the instrument panel will illuminate to indicate that tow/haul has been selected. Tow/haul may be turned off by pressing the button again, at which time the indicator light on the instrument panel will turn off. The vehicle will automatically turn off tow/haul every time it is started. 4-67