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2021 Jeep Grand Cherokee maintenance schedule

Written in plain English and reviewed by the eli5cars editorial team Β· Last reviewed June 2026

3.6L Pentastar V6 (293 hp), 5.7L HEMI V8 (360 hp), or supercharged 6.2L HEMI V8 (707 hp, Trackhawk)LaredoLaredo XLimitedMSRP $34,645

Jump to a mileage milestone:

Full service timeline

MileageService itemsDetails
5k mi
  • Engine oil and filter change β€” 0W-20 full synthetic (3.6L Pentastar V6 and 5.7L HEMI V8); check Jeep oil-change indicator for exact interval
  • Tire rotation
  • Inspect brake pads and rotors β€” front and rear
  • Inspect Quadra-Trac/Quadra-Drive transfer case fluid level (4x4 models)
  • Check all fluid levels
10k mi
  • Engine oil and filter change β€” 0W-20 full synthetic
  • Tire rotation
  • Inspect cabin air filter condition
  • Inspect front and rear differential fluid level (4x4 models)
  • Inspect battery terminals and connections
15k mi
  • Engine oil and filter change β€” 0W-20 full synthetic
  • Tire rotation
  • Inspect brake fluid color and level
  • Inspect ZF 8-speed automatic transmission fluid condition (8HP45/8HP70)
  • Inspect front and rear driveshaft U-joints (4x4 models)
30k mi
  • Engine oil and filter change β€” 0W-20 full synthetic
  • Tire rotation
  • Replace cabin air filter
  • Replace engine air filter
  • Inspect spark plugs β€” 3.6L Pentastar iridium (factory interval ~100k; inspect at 30k)
  • Inspect spark plugs β€” 5.7L HEMI iridium (factory interval ~60k; inspect at 30k)
  • Inspect front differential fluid (4x4 β€” Mopar 75W-140 synthetic gear oil)
  • Inspect transfer case fluid β€” Quadra-Trac I/II/Quadra-Drive II (Mopar ATF+4)
  • Inspect rear differential fluid β€” Mopar 75W-140 synthetic (limited-slip requires friction modifier)
  • Inspect ZF 8-speed automatic transmission fluid
View β†’
60k mi
  • Engine oil and filter change β€” 0W-20 full synthetic
  • Tire rotation
  • Replace cabin air filter
  • Replace engine air filter
  • Replace brake fluid β€” DOT 3
  • Replace front differential fluid β€” Mopar 75W-140 synthetic (4x4)
  • Replace transfer case fluid β€” Mopar ATF+4 (4x4)
  • Replace rear differential fluid β€” Mopar 75W-140 synthetic
  • Replace spark plugs β€” 5.7L HEMI iridium (factory interval: 60k miles)
  • Inspect serpentine belt β€” both 3.6L V6 and 5.7L V8
  • Inspect coolant condition (Mopar OAT orange extended-life β€” first change at 100k or 5 years)
  • Inspect ZF 8-speed automatic transmission fluid β€” replace under severe-duty schedule (towing, trailer use)
View β†’
90k mi
  • Engine oil and filter change β€” 0W-20 full synthetic
  • Tire rotation
  • Replace cabin air filter
  • Inspect serpentine belt β€” replace if cracked or glazed
  • Inspect front CV axle shafts and boots (4x4 front axle)
  • Inspect air suspension compressor and air springs (Overland/Summit/Trackhawk quadra-lift air suspension models)
  • Inspect brake calipers, hardware, and parking brake cables
  • Inspect Quadra-Trac transfer case shift motor and electronic actuator operation
View β†’
100k mi
  • Engine oil and filter change β€” 0W-20 full synthetic
  • Tire rotation
  • Replace spark plugs β€” 3.6L Pentastar iridium (factory interval 100k miles)
  • Replace engine coolant β€” Mopar OAT orange extended-life (first change at 100k or 5 years, then every 50k)
  • Replace ZF 8-speed automatic transmission fluid β€” ATF+4 (mandatory for towing-duty vehicles)
  • Replace front differential fluid β€” Mopar 75W-140 (4x4)
  • Replace transfer case fluid β€” Mopar ATF+4 (4x4)
  • Replace rear differential fluid β€” Mopar 75W-140
  • Full brake system flush β€” DOT 3
120k mi
  • Engine oil and filter change β€” 0W-20 full synthetic
  • Tire rotation
  • Replace serpentine belt if not already replaced
  • Inspect and service front wheel bearings and hub assemblies
  • Inspect all suspension components β€” control arm bushings, sway bar end links, and air suspension height sensors
  • Inspect steering gear, tie rods, and stabilizer components
View β†’

Upgrading your Grand Cherokee's wheels?

See verified wheel fitments for the 2021 Jeep Grand Cherokee β€” bolt pattern, hub bore, and offset all checked.

Verified Grand Cherokee fitments at AlloyHaus β†’

AlloyHaus is our sister site β€” built by the same maker as eli5cars.

Check engine light on? Get a free code scan

If your check engine light is on, most auto-parts stores (AutoZone, O'Reilly, Advance) will read the code for FREE β€” no purchase required, just walk in. Bring the code back here and look it up at eli5cars.com/obd2 for the plain-English explanation.

Note: a scan only helps when there's an active fault code. For purely mechanical symptoms (noises, vibrations, leaks), a scan may show nothing β€” the suspects listed above are your starting point.