2021 Jeep Wrangler - Maintenance & Specs
The 2021 Jeep Wrangler belongs to a Jeep Wrangler lineup that Know Your Ride tracks across 32 model years, from 1986 to 2026. Engine options on record include the 2.0L, 2.0L Turbo. It is configured as 4-wheel drive with an automatic 8-spd. The 2021 sits mid-run, with both earlier (1986) and later (2026) Wrangler model years also documented.
It takes 5W-30 full synthetic oil, 5.0 qt with a new filter meeting MS-6395. Fluid specs on file include HOAT coolant, DOT 3 brake fluid, ATF+4 transmission fluid. Know Your Ride lists 14 scheduled maintenance items for this vehicle, the earliest interval falling at 5,000 miles. Documented torque values include oil drain plug 20 ft-lb, lug nut 100 ft-lb, spark plug 18 ft-lb.
NHTSA complaints for this vehicle cluster around electrical system (117), steering (86), steering,suspension (69). A representative report reads: "The contact owns a 2021 JEEP Wrangler. The contact stated that while opening the vehicle's rear swing gate, they noticed that the rear windshield defroster..." There are 14 safety recalls on record; one covers: ...sler (FCA US, LLC) is recalling certain 2018-2021 Jeep Wrangler and 2020-2021 Jeep Gladiator vehicles equipped with manual transmissions. The clutch....
EPA fuel economy is rated at 22 city / 24 highway MPG, 23 MPG combined. Estimated annual fuel cost is about $1,900.
Quick Specs
| Oil viscosity | 5W-30 |
| Oil type | Full Synthetic |
| Oil capacity (w/ filter) | 5.0 qt |
| OEM oil spec | MS-6395 |
| Oil filter | Mopar 68191349AC |
| EPA combined | 23 MPG |
| Tire size | 245/60R18 |
| Coolant | HOAT |
| Open recalls on record | 14 |
| Technical service bulletins | 200 |
Common Trouble Codes
- P0300 - Random/Multiple Cylinder Misfire Detected
- P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
- P0171 - System too Lean (Bank 1)
- P0128 - Insufficient Coolant Temperature for Stable Operation
- P0442 - Evaporative Emission Control System Leak Detected (small leak)
- P0455 - Evaporative Emission Control System Leak Detected (gross leak)
- P0700 - Transmission Control System Malfunction
- P0301 - Cylinder 1 Misfire Detected
- U0100 - Lost Communication With ECM/PCM A
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Part of the free Know Your Ride vehicle maintenance reference. Figures are sourced from EPA, NHTSA and manufacturer data and are for general reference - always confirm with your owner's manual.