Sierra 1500 2WD V8-5.3L Hybrid (2004)
Battery System, Hybrid Drive: Service and Repair
How to Disable Electrical System
Disabling Procedures
Today, "rip and tear" techniques to gain entry are less effective and potentially dangerous. Access is often much easier than it appears. A more
appropriate adage is "try before you pry."
Avoid cutting the vehicle until all of the electrical systems have been deactivated and isolated. Cutting into the areas of the vehicle prior to
disconnecting and isolating the electrical energy sources may cause an electrical arc and/or potential injury.
Response Guidelines
First responders should practice safety procedures and caution when approaching or working with the Silverado or Sierra Hybrid Truck during
emergency situations. Approach the scene slowly in order to fully develop a mental picture and check for hazards.
Stabilize the scene by addressing the hazards. Secure the vehicle prior to vehicle entry. Ensure that:
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The transmission is in park or neutral
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The parking brake is applied
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The ignition is off
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The key is removed
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And the wheels are chocked (blocked) in some way so that there is no other means by which the vehicle can become mobile.
Neutralize the 120 VAC Outlets
