2021 Jeep Wrangler: Thumping in rear end
Common wear/failure (not a recall)
Symptoms
Owners of the 2021 Wrangler report: thumping in rear end. CarComplaints.com lists 3 owner complaints, average mileage 1,950 miles.
NHTSA has 148 owner complaints for the 2021 Wrangler in this area. Examples:
- NHTSA complaint ODI #11771298 (filed 10/15/2026): “I have owned this vehicle since august of 2021 and consider myself very familiar with the normal operation and performance of the vehicles propultion system. from august of 2021 through december of 2025: - i could operate the vehicle at highway speeds in full…”
- NHTSA complaint ODI #11771117 (filed 10/14/2026): “Vehicle shuts down and looses all power and battery controls without warning. my [xxx] daughter was driving the jeep when this happened. was unable to get vehicle into n for over an hour. fuses and relays inside the under hood fuse block were extremely hot. a…”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: trade it and take a loss (1 reports). Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Pro
Differential/driveline noise diagnosis and gear work need a lift and specialty setup tools. (Our assessment.)
Cost
No sourced cost range: get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .