2021 GMC Yukon Fuel/propulsion System Problems
NHTSA component category: FUEL/PROPULSION SYSTEM · data through 07/12/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How fuel/propulsion system ranks on this vehicle
Share of the 290 complaints citing each category; one complaint can cite several. Full breakdown on the 2021 GMC Yukon overview page.
What owners report
“My family and I found ourselves stranded on the interstate when our engine failed while we were driving on I-10 at 75 mph. The connecting…”NHTSA complaint 11638168 — filed 01/23/2025
“My 2021 Yukon Denali has roughly 70k miles and this is now the SECOND time that my engine shut off while driving >55mph on the…”NHTSA complaint 11636897 — filed 01/19/2025
“On 9/23/2024, I was driving my 2021 GMC Yukon Denali down the road, when the Engine seemed to lose power, and the accelerator no longer…”NHTSA complaint 11616267 — filed 09/24/2024
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Fuel/propulsion System complaints by year filed
Frequently asked questions
Does the 2021 GMC Yukon have fuel/propulsion system problems?
Fuel/propulsion System is the #3 most-reported problem area on the 2021 GMC Yukon: 39 of 290 complaints on file (13.4%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2021 GMC Yukon have in total?
290 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 9 involved a crash, 0 involved a fire, 9 reported injuries, and none reported deaths.
What does NHTSA's fuel/propulsion system category include?
NHTSA assigns each complaint to standard component categories; this page reports the FUEL/PROPULSION SYSTEM category exactly as NHTSA defines and records it.
