Extreme Cold Weather (Below –20°F Or –29°C)

Jeep Wrangler / Jeep Wrangler Owner's Manual / Starting And Operating / Starting Procedures / 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.

    See also:

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    NOTE: Refer to the chart at the end of this section for suggested control settings for various weather conditions. ...