2021 GMC Yukon · symptom sheet
Engine knocking or ticking
- 27owner reports
- 77,000median miles
- 0involved a crash
Newest report Sep 8, 2026 · checked Oct 2, 2026
27 of the 93 reports of engine failure on the 2021 Yukon describe engine knock.
Part of Engine failure, knocking or rod bearing (93 reports)
Tick what matches of 27 reports
Engine knock on other Yukon years
No other Yukon model year has enough reports of engine knock for a sheet of its own. See every Yukon year.
What got replaced
Few of these reports name the part that was replaced.
Recalls and investigations
One recall on the engine covers the 2021 model year. A recall on the same system isn't always the same failure, so read the defect text.
The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.
All 13 recalls on the 2021 GMC Yukon, with the owner complaints on each recalled system
NHTSA investigations into the engine on the Yukon
Loss of motive power due to engine failure post recall remedy. Open.
Loss of motive power due to engine failure post recall remedy. Closed aug 20, 2026.
Loss of motive power due to engine failure. Open.
Loss of motive power due to engine failure. Closed oct 23, 2025, led to recall 25V-274.
When it happens
Too few of these reports state a mileage to give a range.
Is this a known problem?
The manufacturer has sent NHTSA 1 service bulletin or notice for the 2021 GMC Yukon that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall.
What owners wrote
“Knocking sound and flashing engine light came on. When brought to dealership it was determined that lower bearing failure took place requiring full engine replacement. '”
Filed Jul 25, 2026
“Motor started knocking My safety and my family safety was put at risk because we were driving down the street. The car is now at Woody dealership in Naperville, IL. Being inspected as we speak. No symptoms prior to failing.”
Filed May 6, 2026
“2 days after the delearship changed my oil to a heavier weight, my engine began knocking. Iâm told the rod is bent but not covered by warranty”
Filed Feb 2, 2026
“Vehicle has an engine knocking. The oil pressure will drop and will go into low power”
Filed Apr 21, 2025
Should you keep driving it?
This page can't tell you that. 0 of 27 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Paid for this repair before a recall covered it? How recall reimbursement works
Other problems on this car
- Engine stalls or loses power while driving 71 reports
- Check engine light or misfire 54 reports
- Fuel pump failure 36 reports