2021 Chevrolet Suburban 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 177 complaints citing each category; one complaint can cite several. Full breakdown on the 2021 Chevrolet Suburban overview page.
What owners report
“Driving vehicle on a highway at 55mph, tried to speed up, no propulsion. Fuel injector went bad.”NHTSA complaint 11684184 — filed 08/31/2025
“I was standing at a red light with my foot on the brake and the car went into neutral and stalled. I could not restart…”NHTSA complaint 11683089 — filed 08/26/2025
“What component or system failed or malfunctioned, and is it available for inspection upon request? Fuel pump How was your safety or the safety of…”NHTSA complaint 11669413 — filed 06/26/2025
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 Chevrolet Suburban have fuel/propulsion system problems?
Fuel/propulsion System is the #3 most-reported problem area on the 2021 Chevrolet Suburban: 21 of 177 complaints on file (11.9%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2021 Chevrolet Suburban have in total?
177 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 6 involved a crash, 1 involved a fire, 5 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.
