Service and Maintenance
Battery
In this manual: Service and Maintenance
~1min read
The battery supplies power to start the engine and operate any additional electrical accessories.
• To avoid break-down or failure to start the vehicle, maintain a battery with full cranking power.
• Trained dealer technicians have the diagnostic equipment to test the battery and ensure that the connections and cables are corrosion-free.
Test yourself
A quick GMC Sierra quiz: every answer comes with an explanation and a link to the manual page.
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