2021 Hyundai Palisade: engine knocking or ticking

Filed Oct 29, 2026 · Engine · NE

Vehicle Information: 2021 Hyundai Palisade Limited (3.8L V6 Engine) Complaint Description: While driving at highway speeds, the vehicle suddenly began making a loud engine knocking noise, followed immediately by a total and catastrophic structural failure of the engine. A connecting rod bearing seized and the rod broke, punching a hole directly through the metal engine block. This mechanical failure caused an immediate, complete loss of motive power and propulsion while traveling in high-speed highway traffic. The sudden loss of engine power simultaneously disabled the power steering and power braking assistance, creating an extreme and immediate safety hazard as I was forced to navigate a completely dead, non-responsive vehicle across multiple active lanes of traffic to reach the shoulder. The vehicle was manually pushed directly to a licensed Hyundai dealership 1/2 a mile, where technicians confirmed a catastrophic internal engine failure with a thrown rod through the engine block. The vehicle had a consistent and documented maintenance history prior to the incident. No warning lights or oil pressure indicators illuminated on the dashboard prior to the sudden knocking and immediate engine destruction. This defect poses a severe, life-threatening safety risk due to the sudden loss of vehicle control on public highways.

Filed Sep 16, 2026 · Body, Engine · WI

While driving down the freeway my first row sunroof exploded. Insurance wouldn’t cover it because it is a manufacturer defect, but Hyundai wouldn’t cover it because it “isn’t a manufacturer defect.” The temperature outside when the sunroof exploded was 74 degrees and it was cloudy. Then less than 2 months later my engine got a rod knock even with oil changes every 5k miles. No warning signs for either and no lights on the dash. It just started when I started it to leave for work one morning.

Filed Nov 2, 2025 · Engine, Fuel system · FL

I own a 2021 Hyundai Palisade Calligraphy with approximately 114,000 miles. The transmission had to be replaced at around 98,000 miles. Recently, before my next scheduled oil change (I had about 1,000 miles left), my vehicle suddenly began making a loud knocking noise and lost power. The dealer informed me that the engine may have blown. There were no warning lights, oil indicators, or overheating signs before this happened. The car has been regularly maintained and serviced with timely oil changes. This appears to be a premature engine failure possibly related to oil consumption or an internal defect, as many other Palisade owners have reported similar issues. Hyundai Consumer Affairs has been contacted, and a case number is being opened for review. I am filing this complaint to report a potential widespread engine problem and request investigation into 2021 Hyundai Palisade engine reliability and oil-related failures.

Filed Feb 26, 2025 · Suspension · IL

Shock failure within 33,000 miles. Going over bumps at higher speeds causes some loss of control of the vehicle. Dealer confirmed the issue with the shock upper insulator. No one else has inspected this at this time. No warning lamps, messages or other symptoms. When driving at any speed bumps on the road cause very bumpy ride. Dealer states Hyundai's TSB 22-SS-001H has been rescinded. Shocks failed within 33,000 miles. No remedy for knocking and rattling noise in rear of vehicle caused by shock mounts. This seems to be the cause of the shocks failing prematurely.

Filed Dec 30, 2024 · Seat belts, Suspension · OK

I was unable to use my seatbelt because the end that accepts the strap, would not allow the seatbelt to click in to the device. I had to drive without a seatbelt several miles. I tried probably 20 times to get it to click in before giving up. My husband was able to somehow reset the mechanism, and it appears to be working fine at the moment. but I fear I could get either locked in or out of the seatbelt in the future. There was no warning the seatbelt was having an issue prior to this event. Also, it appears my model, the 2021 Hyundai Calligraphy is not included in the service bulletin campaign with the issue of a knock in the rear end (my noise is coming from the right rear area of the vehicle. Most likely the rear shock absorber, upper insulator. I'm not sure of the safety issue this will cause. Hyundai wants to charge me $160.00 to tell me if that is what it is. Knowing the other models in this year have this issue My vehicle has approx. 68,000.00 miles. They have told me my warranty expired at 60,000 miles.

Filed Nov 17, 2024 · Suspension · FL

The failed/malfunctioning component(s) are the rear shocks/struts. Safety put at risk due to uncontrollable bumpiness and instability while driving on less than perfectly smooth local roads and highways. The problem has been confirmed by local Hyundai dealership service center. There are no associated electronic notifications or warning lights alerting driver of failure or malfunctioning of this vehicle component. Recently purchased the vehicle in July 2024 as a certified pre owned and noticed knocking sound emitting from rear (mostly left) side of vehicle about a month or two after purchase.

Filed Aug 31, 2024 · Suspension · NJ

Knocking sound from rear driver side area. May be linked to suspension. Cars has only 55k miles.

Filed Apr 4, 2024 · Suspension · AL

Knocking noise at back when driving was told it was the rear shocks. Was told by dealership on 4/4/2024 that there is a TBS regarding this issue.

Filed Apr 1, 2024 · Suspension · UT

There is a knocking or clunking noise from the rear of the vehicle when driving on bumpy roads at low speeds.