Extreme Cold Weather (Below –20°F Or 29°C)
Jeep Grand Cherokee / Jeep Grand Cherokee Owners 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:
Control Setting Suggestions For Various Weather Conditions
...
Operating Instructions (Voice Command System) — If Equipped
Refer to “Voice Command” in the Uconnect™ User
Manual located on the DVD for further details. ...
Seat Belt Maintenance
Do not bleach, dye or clean the belts with chemical solvents or abrasive cleaners.
This will weaken the fabric.
Sun damage will also weaken the fabric.
If the belts need cleaning, use MOPAR Total ...