The gas tank on the 2014 Jeep Cherokee holds 15.8 gal..
The gas tank on the 2009 Jeep Grand-Cherokee holds 21.1 gal..
The gas tank on the 2013 Jeep Grand-Cherokee holds 24.6 gal..
The gas tank on the 2012 Jeep Grand-Cherokee holds 24.6 gal..
The gas tank on the 2014 Jeep Grand-Cherokee holds 24.6 gal..
The gas tank on the 2006 Jeep Grand-Cherokee holds 20.8 gal..
The gas tank on the 2011 Jeep Grand-Cherokee holds 24.6 gal..
The gas tank on the 2007 Jeep Grand-Cherokee holds 21.1 gal..
The gas tank on the 2005 Jeep Grand-Cherokee holds 20.8 gal..
10 Gal with one gal reserve
My 92 Cherokee Laredo has a 20 gallon tank according to the owner's manual (and a few trips to the gas station). The Haynes Repair Manual for Jeep Cherokee - 1984 thru 2001 mentions however, that there were some with 13.5 "Standard" and 20 "Optional". both above answers are correct. What I did was run the tank down to the yellow warning light and then some, you should still have 2+ gallons in there and then fill up...............Mike The Jeep Grand Cherokee in 2001 holds about 16 gallons. My 1996 Jeep Grand Laredo will hold 21.5 gallons, coasted into gas station once and it filled to this amount.
18.5 gal.