This guide is a good buy for its purpose, but don't trust it completely. Some information is incorrect or missing as GM changes designs and features almost every year. For example: very detailed engine controls, but NO dashboard wiring diagrams. However, even the significantly more expensive factory manuals for these vehicles are not always correct. FYI, this guide is almost identical to the Haynes version. The differences are mainly in the font size and positioning of the images. Larger font and more space for notes in this version, smaller font and lower cost in the Haynes Handbook. Your choice.
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