2014 GMC SIERRA Fuelpropulsion System Problems
1 NHTSA complaint on file
Fuelpropulsion System Issues in the 2014 GMC SIERRA
1 fuelpropulsion system complaint has been filed with NHTSA for the 2014 GMC SIERRA. Of these, 0 involved a crash, 0 involved a fire, and 0 resulted in injury.
1
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
All Fuelpropulsion System Complaints
THE TRUCK WAS AVERAGING ABOUT 20 MPG BUT SHIFTING ERRATICALLY LIKE IT COULDN'T DECIDE WHAT GEAR TO BE IN. AFTER USING THE 4WD THE FIRST TIME THE MPG DROPPED OFF TO ABOUT 17 AND HAS BEEN DECLINING STEADILY CURRENTLY I GET 14 TO 15 MPG AND DRIVE 150 MILES PER DAY MOSTLY HIGHWAY. I HAVE TAKEN IT BACK TO THE DEALER TWICE THEY SAID THE COMPUTER COULDN'T GET USED TO MY DRIVING STYLE AND REPROGRAMMED THE COMPUTER. WHEN I TOOK IT BACK ABOUT THE MILEAGE A GUY CAME OUT AND SAID HE COULD TELL IF SOMETHING WAS STUCK AND SWITCHED THE 4WD A FEW TIME AND SAID IT WAS FINE. MY MPG IS GETTING WORSE AND IT SLAMS IN AND OUT OF GEAR 2-3 TIMES IN A MATTER OF SECONDS WHILE SUSTAINING A STEADY HIGHWAY SPEED ON A FLAT SURFACE. *TR
Other 2014 GMC SIERRA Problem Areas
Exterior Lighting
60 complaints
Power Train
10 complaints
Electrical System
9 complaints
Engine
8 complaints
Steering
7 complaints
Air Bags
5 complaints
Suspension
5 complaints
Visibilitywiper
5 complaints
Exterior Lightingheadlights
4 complaints
Structurebody
4 complaints
Seats
2 complaints
Structure
2 complaints
Unknown Or Other
2 complaints
Electronic Stability Control Esc
1 complaint
Equipment Adaptivemobility
1 complaint
Latcheslockslinkages
1 complaint
Seat Belts
1 complaint
Structurebodytailgate
1 complaint
Structureframe And Membersunderbody Shields
1 complaint
Tirespressure Monitoring And Regulating Systems
1 complaint
Vehicle Speed Control
1 complaint