2021 GMC Yukon XL Fuel/propulsion System Problems
NHTSA component category: FUEL/PROPULSION SYSTEM · data through 07/14/2026
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 199 complaints citing each category; one complaint can cite several. Full breakdown on the 2021 GMC Yukon XL overview page.
What owners report
“In March 2025, a situation happened to me during a six hour round trip drive. I experienced a loss of acceleration. Vehicle engine felt it…”NHTSA complaint 11662492 — filed 05/22/2025
“Noticeable ticking from the motor, loss of power while driving and smoking. Took to dealership to for repairs. Lifters replaced on one side, within 30…”NHTSA complaint 11661064 — filed 05/14/2025
“I am the owner of a 2021 GMC Yukon Denali with the 6.2L V8 engine (VIN: [XXX] ). This vehicle has exhibited multiple serious issues…”NHTSA complaint 11659747 — filed 05/08/2025
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 XL have fuel/propulsion system problems?
Fuel/propulsion System is the #3 most-reported problem area on the 2021 GMC Yukon XL: 24 of 199 complaints on file (12.1%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2021 GMC Yukon XL have in total?
199 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 2 involved a crash, 1 involved a fire, 6 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.
