Max Power

This is a Max Power Mode Indicator symbol. It belongs to the GMC Sienna electric vehicle (EV), which, when used, adjusts the acceleration pedal “map”. The symbol is a drawing that looks like Thor’s hammer with a lightning bolt inside.

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Max Power mode provides maximum propulsion and is intended for short duration use. This is perhaps akin to various Sport Modes offered in internal combustion engine vehicles.

The mode is not intended for daily use. Engaging Max Power mode will not change an active drive mode but will provide additional propulsion torque for maximum acceleration.

It will not function when the vehicle battery charge is low and remaining in this mode will reduce the vehicle’s range.

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The material on these pages is provided for information sharing purposes only and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business, nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.

Remember — only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.

Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.

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