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.
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Voice Training
For users experiencing difficulty with the system recognizing
their voice commands or numbers, the Uconnect™
Phone Voice Training feature may be used. To enter this
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Engine Oil Viscosity – 3.6L Engine
SAE 5W-30 engine oil is recommended for all operating
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starting and vehicle fuel economy.
The engine oil filler cap also shows the recommende ...
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Check for positive closing, latching, and locking. ...