Jeep Grand Cherokee 2020 Owner's Manual page 318

316 SERVICING AND MAINTENANCE
Mileage or time passed (whichever
comes first)
Or Years:
Or Kilometers:
Flush and replace the engine coolant
at 10 years or 150,000 miles
(240,000 km) whichever comes first.
Replace accessory drive belt.
Inspect accessory drive belt tensioner
and pulley, replace if necessary.
Change transfer case fluid.
Replace PCV valve
1. The spark plug change interval is mileage based only, yearly intervals do not apply.
2 3 4 5 6 7 8 9 10
X
X
11 12 13 14
X
15
X
X
X