There are 1 stored owner reports matching the fuel system leading-label group for the 2014 Chevrolet Suburban in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)THIS CAR'S FUEL EFFICIENCY IS ATROCIOUS. IT WAS ADVERTISED AS 16-22 MPG BUT I HAVE NEVER BEEN ABLE TO GET MORE THAN 11 MPG ON THE HIGHWAY, IT'S LOWER AROUND TOWN. 12 MPG AROUND TOWN. I'VE TAKEN IT IN TO CHEVY DEALERSHIPS AND MAINTENANCE SHOPS AND THEY SAY THERE IS NOTHING THEY CAN DO. I'VE OWNED PREVIOUS SUBURBANS WITH 30 GALLON GAS TANKS AND CAN GO 600 MIKES ON A FULL TANK OF GAS. HOWEVER, I HAVE TO STOP FOR GAS WITH THIS CAR AFTER 325-350 MILES. IT'S TERRIBLE, ESPECIALLY IN LONG TRIPS. THERE IS SOMETHING WRONG WITH THE FUEL USAGE BY THIS CAR CAR AND I DON'T KNOW WHO TO TURN TO FOR CORRECTION OF THE PROBLEM. IF YOU DON'T CONSIDER THIS A VALID COMPLAINT, CAN YOU REFER ME TO ANOTHER ORGANIZATION? I'VE TRIED TO GET AHOLD OF A NATIONAL CHEVROLET REPRESENTATIVE BUT I AM ALWAYS REFERRED BACK TO A LOCAL CHEVROLET DEALER WHO SAYS THERE IS NOTHING THEY CAN DO TO HELP. I HOPE ( AND PRAY) THAT YOUR ABLE TO HELP BECAUSE THE CAR IS USING TWICE AS MUCH GAS AS I AM USED TO WITH THIS MODEL, HAVING HAD 20+ MPG WITH THE SUBURBAN I OWNED IN 2000. THANK YOU.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.