Where would you expect to see a warning label about high voltage?

• A. On the wheel hub
• B. On the engine oil dipstick
• C. Under the hood
• D. High-voltage battery

Answer: (D)

High voltage warning labels point to parts that can energize a vehicle’s high-voltage system. The primary source of that energy is the high-voltage battery, so the label is placed on or right near the battery itself to alert anyone working there to the danger of shock or arc flash. The battery is the focal point of the high-voltage system, so a warning on it helps ensure proper precautions are taken before touching any related components.

The other options don’t represent the main high-voltage source or a standard location for this dedicated safety notice. A wheel hub is a mechanical part, the engine oil dipstick is related to oil level, and while there are warnings around the engine bay, the specific high-voltage hazard label is typically associated with the high-voltage battery and its connections.