1999 GMC Sonoma Owner's Manual - Page 211

yellowblue Towing Your Vehicle CAUTION: To help avoid serious personal injury to you or others: D Never let passengers ride in a vehicle that is being towed. D Never tow faster than safe or posted speeds. D Never tow with damaged parts not fully secured. D Never get under your vehicle after it has been lifted by the tow truck. D Always secure the vehicle on each side with separate safety chains when towing it. D Use only the correct hooks. A. Heavy Metal Engine Part B. Good Battery C. Dead Battery 5-7