Vehicle Modifications/Alterations

WARNING!
Any modifications or alterations to this vehicle could seriously affect its roadworthiness and safety and may lead to a accident resulting in serious injury or death.

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    Extreme Cold Weather (Below –20°F Or 29°C)
    To ensure reliable starting at these temperatures, use of an externally powered electric engine block heater (available from your authorized dealer) is recommended. ...

    SET Button – To Set the Pushbutton Memory
    When you are receiving a channel that you wish to commit to pushbutton memory, press the SET button. The symbol SET 1 will now show in the display window. Select the button (1-6) you wish to lock ...

    Going & Stopping
    Driving the V-6 Grand Cherokee reminded me that the laws of physics can't be changed. The SUV uses Chrysler's new Pentastar 3.6-liter V-6 rated at 290 horsepower and 260 pounds-feet of torque, but ...