2024 Chevrolet Suburban: Engine complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 30 owner complaints for the 2024 Chevrolet Suburban that list the engine component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11771201 (filed 10/14/2026): “Driving our 2024 suburban, 6.2 l engine, on a 2-lane highway in southern utah, traveling on cruise control at 70 mph, felt 2 hesitations (jerking movement), and turned off cruise control. immediately after, heard knocking/thumping sound in the front of the vehicle, followed by a whining sound that g…”
- NHTSA complaint ODI #11769488 (filed 10/07/2026): “Radiator was cracked and leaking at 42,000 miles. gm is well aware of the known failure, but has failed to issue a recall…”
- NHTSA complaint ODI #11764157 (filed 09/14/2026): “While driving down a two-lane blacktop road at 70 mph (the posted speed limit) the engine, a 6.2 l l87 with a little over 15,000 miles, grenaded and seized. at the time i recall a warning message that said something like "engine shutdown". fortunately the electronic transmission self-shifted into n…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Pro
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .