Home · 2021 Jeep Grand Cherokee L · Complaints

What 71 owners told NHTSA about the 2021 Jeep Grand Cherokee L

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (71)Crash / fire / injury (4)Electrical system (25)Driver assistance (17)Steering (13)Transmission & drivetrain (12)Engine (8)Seats (6)Brakes (4)Suspension (4)Speed control (3)Airbags (2)

6 of 71 complaints match · Seats · clear filters

Jun 22, 2026Seats

The contact owns a 2021 Jeep Grand Cherokee L. The contact stated that while driving at an undisclosed speed, the front passenger's seat lumbar system independently inflated and failed to deflate as intended. The contact stated that the excessive inflation caused the seat back pocket to fracture. Additionally, the contact stated that the failure was a safety hazard because of the air bags. The dealer was made aware of the failure, and an appointment was scheduled. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that the failure was a known failure with similar vehicles. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 57,000.

NHTSA ODI 11745614

May 13, 2026Seats

Passenger seat will always become inflated and will not deflate at times. The vehicle is shut down and seat is properly deflated, overnight it will return to inflated. This seems very unsafe for any passenger.

NHTSA ODI 11737557

Oct 14, 2025Seats

The driver side seat bolster inflates and deflates randomly while you are driving. Usually on the left side of the seat.

NHTSA ODI 11693455

Sep 12, 2025SeatsCrash

Drivers seat self inflate causing the seat belt to tighten mid drive . Causes severe back pain.

NHTSA ODI 11686950

Jul 29, 2025Seats

There were no warning lights, but when I got into car I seen my passenger seat swollen up. Looks like lumbar expanded and is going to pop. Could be dangerous if it explodes to the person sitting in the seat or behind. It just happened out of no where.

NHTSA ODI 11677004

Mar 17, 2025Seats

Passenger seat back inflated so you cannot sit in the seat safely. Not sure if faulty massage chair component or lumbar support. Almost like an air bulge.

NHTSA ODI 11648885

Working with the data? Download all 71 complaints as CSV · fetched from NHTSA July 10, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2021 Jeep Grand Cherokee L verdict →