2003 GMC SIERRA DENALI towing capacity

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Page 254 of 428

GMC SIERRA DENALI 2003  Owners Manual Towing Loading Your  Vehicle 
Towing  Your  Vehicle 
Consult  your  dealer  or  a  professional towing service if 
you need to  have  your  disabled vehicle  towed.  See 
Roadside  Assistance  Program

Page 260 of 428

GMC SIERRA DENALI 2003  Owners Manual Towing a Trailer 
If you  don’t  ,se the correct eq-., ...__. t and 
drive  properly,  you  can  lose  control  when  you 
pull  a  trailer.  For  example, 
if the  trailer is too 
heavy,  the  brak