Owners have filed 10 complaints
about the 2014 GMC Sierra 3500 with NHTSA between 2015 and 2022.
The largest single group is the acceleration & cruise control.
Across this model's run it ranks 15 of 26 worst.
The letter says how bad. This says what kind — whether this year drew
an unusual number of complaints, unusually dangerous
ones, or failures that arrived unusually early.
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 17
Against the median year of the GMC Sierra 3500. 50 means typical for this
model; 100 means roughly double.
Severity — 100
20% of these complaints
involved a crash, fire, injury or death, against a national rate of
9.7%.
Early failure — not reported
Too few complaints recorded a mileage to measure this.
How 2014 compares with every other GMC Sierra 3500
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade:
A
B
C
D
F
ungraded
What breaks on a 2014 GMC Sierra 3500
Every complaint is filed against a part. Follow any row for the complaints about that part alone.
Fuel & Propulsion
220.0%
Acceleration & Cruise Control
220.0%
Median failure at 14,638 miles
Lights
110.0%
Brakes
110.0%
1 crashes, 0 fires · median 68,000 mi
Steering
110.0%
Median failure at 72,000 miles
Electrical System
110.0%
Transmission & Drivetrain
110.0%
Engine & Cooling
110.0%
When owners complained
A spike years after the car went on sale usually means a part wearing
out on schedule across the whole fleet — the kind of pattern no single
owner can see from inside their own car.
May 2015peak 4Nov 2022
NHTSA investigations into the 2014 GMC Sierra 3500
An investigation is the step before a recall: the agency has seen enough
complaints to look into a pattern itself. An open one means it thinks
something may be wrong and nothing has been fixed yet.
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.C...
Complaints that involved harm
Reports where the owner recorded a crash, a fire, an injury or a death.
at 68,000 milesLake Providence, LACrash1 injured
SERVICE BRAKES
TL* THE CONTACT OWNS A 2014 GMC SIERRA 3500. THE CONTACT STATED WHILE DRIVING AT 35 MPH, THE BRAKES FAILED CAUSING THE FRONT DRIVER SIDE OF THE VEHICLE TO CRASH INTO A SIGN. THE CONTACT WAS ABLE TO DRIVE THE VEHICLE BACK HOME. THE CONTACT SUFFERED SOME LEG SORENESS. A POLICE REPORT WAS FILED. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO RYAN AUTOMOTIVE GROUP (1101 OLIVER RD, MONROE, LA 71201) WHERE THE BODY DAMAGE WAS REPAIRED HOWEVER, THE FAILURE CAUSE WAS NOT DIAGNOSED. THE CONTACT THEN RECEIVED RECALL NOTIFICATION A FEW MONTHS LATER FOR NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC) AND WHICH THE CONTACT BELIEVED WAS RELATED TO HIS FAILURE. THE MANUFACTURER HAD BEEN INFORMED OF THE FAILURE AND INFORMED THE CONTACT THAT THEY COULD NOT REIMBURSE THE VEHICLE DAMAGE TO THE VEHICLE. THE FAILURE MILEAGE WAS APPROXIMATELY 68,000.
NHTSA complaint #11399287 — an unverified report by a vehicle owner.
The most recent complaints
In the owners' own words, exactly as filed with NHTSA.
Boise, ID
POWER TRAIN
Transmission Control Module TCM failed while driving down the freeway I84 in Boise Idaho. AC Delco part number 24256861. This caused the truck to go into limp mode when at highway speed. While in limp mode the truck would not respond to throttle commands. Truck slowed to 20mph causing a disruption in traffic flow and making it very difficult to get off the freeway, dodging traffic. The TCM failure has been confirmed through a local GMC dealer (Dennis Dillon in Boise Idaho). The Manufacture (General Motors) has discontinued manufacturing this part leaving my vehicle and thousands of others failed. GM's responce is the part is on a national backorder. 24-26 months at the earliest. Aftermarket support is none existent. There were no warning lamps or messages or symptoms prior to the failure. Very limited parts are available on Ebay (10 or less) . Dealer price for the TCM is $710. Ebay pricing is 4-10 thousand. GM customer assistance provides no answers and fails to ackowledge the safety concern of the failed transmission controller.
NHTSA complaint #11495337 — an unverified report by a vehicle owner.
Leominster, MA
VEHICLE SPEED CONTROL
Transmission control module failed. Reduced power to vehicle to first gear. Blinkers, speedometer door locks, and other Safety and driving devices did not work. Check engine turned on. Device is held at some gmc dealerships nationally however they will not sell the part to have the truck repaired.
NHTSA complaint #11492176 — an unverified report by a vehicle owner.
Leominster, MA
EXTERIOR LIGHTING
Transmission control module failed. Reduced power to vehicle to first gear. Blinkers, speedometer door locks, and other Safety and driving devices did not work. Check engine turned on. Device is held at some gmc dealerships nationally however they will not sell the part to have the truck repaired.
NHTSA complaint #11492176 — an unverified report by a vehicle owner.
Leominster, MA
ELECTRICAL SYSTEM
Transmission control module failed. Reduced power to vehicle to first gear. Blinkers, speedometer door locks, and other Safety and driving devices did not work. Check engine turned on. Device is held at some gmc dealerships nationally however they will not sell the part to have the truck repaired.
NHTSA complaint #11492176 — an unverified report by a vehicle owner.
Meridian, ID
ENGINE
CP4 High Pressure Fuel Pump failed/disintegrated causing metal shavings to be pumped through out the fuel lines, injectors and connected systems requiring a replacement of the pump, injector and fuel lines totaling over $11,000 in repairs. Trucks mileage was 94112 at the time.
NHTSA complaint #11440947 — an unverified report by a vehicle owner.
Meridian, ID
FUEL/PROPULSION SYSTEM
CP4 High Pressure Fuel Pump failed/disintegrated causing metal shavings to be pumped through out the fuel lines, injectors and connected systems requiring a replacement of the pump, injector and fuel lines totaling over $11,000 in repairs. Trucks mileage was 94112 at the time.
NHTSA complaint #11440947 — an unverified report by a vehicle owner.
at 68,000 milesLake Providence, LACrash1 injured
SERVICE BRAKES
TL* THE CONTACT OWNS A 2014 GMC SIERRA 3500. THE CONTACT STATED WHILE DRIVING AT 35 MPH, THE BRAKES FAILED CAUSING THE FRONT DRIVER SIDE OF THE VEHICLE TO CRASH INTO A SIGN. THE CONTACT WAS ABLE TO DRIVE THE VEHICLE BACK HOME. THE CONTACT SUFFERED SOME LEG SORENESS. A POLICE REPORT WAS FILED. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO RYAN AUTOMOTIVE GROUP (1101 OLIVER RD, MONROE, LA 71201) WHERE THE BODY DAMAGE WAS REPAIRED HOWEVER, THE FAILURE CAUSE WAS NOT DIAGNOSED. THE CONTACT THEN RECEIVED RECALL NOTIFICATION A FEW MONTHS LATER FOR NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC) AND WHICH THE CONTACT BELIEVED WAS RELATED TO HIS FAILURE. THE MANUFACTURER HAD BEEN INFORMED OF THE FAILURE AND INFORMED THE CONTACT THAT THEY COULD NOT REIMBURSE THE VEHICLE DAMAGE TO THE VEHICLE. THE FAILURE MILEAGE WAS APPROXIMATELY 68,000.
NHTSA complaint #11399287 — an unverified report by a vehicle owner.
Bedford, PA
FUEL/PROPULSION SYSTEM
GOT A RECALL ON DECEMBER 15, 2017 ABOUT THE SECOND GAS TANK ISSUE. ADVISED NOT TO FILL THE SECOND TANK BECAUSE IT CAUSE THE FRONT TANK TO EXPAND, RUB THE DRIVE SHAFT, AND CAUSE A LEAK AND POSSIBLE FIRE. THEY SAID THAT THEY WOULD NOTIFY WHEN PARTS ARE AVAILABLE. HAVE NOT HEARD ANYTHING BACK YET. IT HAS BEEN 2 MONTHS. WE TRAVEL LONG DISTANCES WITH THIS TRUCK AND NEED THE ADDED FUEL FROM THE SECOND TANK. THANK YOU
NHTSA complaint #11071586 — an unverified report by a vehicle owner.
at 72,000 milesLivingston, TX
STEERING
POWER STEERING FAILED WHILE DRIVING, BRAKES IMMEDIATELY LESS EFFECTIVE.
NHTSA complaint #10898735 — an unverified report by a vehicle owner.
at 14,638 milesMagnolia, TX
VEHICLE SPEED CONTROL
TL* THE CONTACT OWNS A 2014 GMC SIERRA 3500. WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE UNINTENTIONALLY ACCELERATED WITHOUT WARNING. IN ADDITION, WHILE DRIVING 25 MPH, THE VEHICLE ACCELERATED UNINTENTIONALLY WHEN THE BRAKE PEDAL WAS DEPRESSED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 14,638.
NHTSA complaint #10721668 — an unverified report by a vehicle owner.