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GMC Sonoma 2003 is a compact pickup with 2 -, 3 – or 4-door, up to 5-passenger, available in 9 trims, ranging from the Regular Cab SL Short Box 2WD to 4WD SLS Crew Cab. SL 2WD Regular Cab Short Box is equipped with a standard 2.2-liter, 120-horsepower I4 engine that reaches 22-mpg in the city and 28-mpg on the highway. A 5-speed manual transmission with overdrive is standard, and 4-speed automatic transmission with overdrive is optional. SLS Crew Cab 4WD is equipped with a standard 4.3-liter, V6, 190-horsepower engine that achieve 15-mpg in the city and 19-mpg on the highway. A 4-speed automatic transmission with overdrive is standard.
If you have problems with this car, you can download the free manual here. Free owner manual contains:

Table of Contens :

• Seats and Restraint Systems
• Features and Controls
• Comfort Controls and Audio Systems
• Your Driving and the Road
• Problems on the Road
• Service and Appearance Care
• Maintenance Schedule
• Customer Assistance Information

This owner manual available FREE at GMC website

Or you can download directly at this link below

Free Download PDF:2003 GMC Sonoma Owner’s Manual (468 pages pdf files, 20.4 MB)