2014 GMC Sierra Engine Problems

#5 CYLINDER ROCKER ARM BROKE TOOK TO A DEALERSHIP IN MICHIGAN TO GET REPAIRED. PROBLEMS WITH ENGINE RUNNING, BEFORE ALL THIS HAPPENED I WAS GETTING 20/22 MPG ON THE HIGHWAY WHICH IS WHAT I TRAVEL MOSTLY, NOW SINCE THIS HAPPEN I ONLY GETTING 16/18 MPG ON THE HIGHWAY. MY DEALERSHIP IN MILWAUKEE WORKED WITH AN ENGINEER FROM GM AND THEY CLAIM EVERYTHING UP TO SPEC AND WON'T DO ANYMORE ON THE VEHICLE BUT YET SOMETHING HAS HAPPENED THAT I HAVE LOST ABOUT 4/6 MPG HIGHWAY OR $20 PER TANK WHICH WITH MY TRAVELING IS A LOT OF MONEY $400 MONTH. I AM VERY DISSATISFIED WITH GM AND THIS VEHICLE RIGHT NOW WHEN YOU PAY $50,000 + FOR A VEHICLE YOU DON'T EXPECT TO HAVE PROBLEMS WITHIN THE FIRST MONTH OF PURCHASE (BRAND NEW) AND THEN FOR GM NOT TO FIND OUT WHY THE DROP IN MILEAGE IS UNACCEPTABLE. *TR

NHTSA ID

10663265

Incident

Oct 13, 2014

Mileage

3,250 mi

MY SON AND I WERE DRIVING MY GMC SIERRA 2014 TO HIS FRIENDS HOUSE BEFORE WE CRASHED. MY SON WAS DRIVING AND HAS HIS LEARNER'S PERMIT, HOWEVER, HAD BEEN DRIVING FOR 4 MONTHS. AT A FORK IN THE ROAD I TOLD MY SON QUICKLY TO MAKE A RIGHT RATHER THAN LEFT AND WE CRASHED INTO AN IMPROPERLY GRATED WALL OF DIRT CAUSING THE TRUCK TO GO FROM 40 MPH TO 0 WITH MY SON HAVING HIS SEATBELT ON, BUT I DID NOT. NEITHER AIRBAGS DEPLOYED AND BOTH OF US SUSTAINED SERIOUS INJURIES. MY SON BROKE HIS NOSE AND I AM SUFFERING FROM A BROKEN NOSE, CONCUSSION AND A BURST VERTEBRAE. NEITHER AIRBAGS DEPLOYED WHICH COULD'VE MADE A HUGE DIFFERENCE ON OUR INJURIES. *TR

NHTSA ID

10621127

Incident

Aug 5, 2014

Mileage

4,000 mi

2014 GMC SIERRA. CONSUMER WRITES IN REGARDS TO VEHICLE ELECTRICAL PANEL FROZE WHILE DRIVING. *SMD ALSO, THE POWER STEERING LOCKED UP, THE HEADLIGHTS DID NOT WORK PROPERLY AND THE ALARM SOMETIMES SOUNDED AFTER THE WAS REMOVED FROM THE IGNITION. ALSO, THE ENGINE LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER TWICE. HOWEVER, THE PROBLEM WAS STILL NOT RESOLVED. THERE WAS A HESITATION/LURCH COMING FROM THE TRANSMISSION, AND AN ISSUE WITH THE TIRE PRESSURE MONITORING SYSTEM. THE INSTRUMENT PANEL MALFUNCTIONED ON THE WAY BACK FROM THE DEALER. THE CHECK ENGINE LIGHT, ILLUMINATED SPORADICALLY. UPDATED 07/10/14 THE CONSUMER STATED THERE WAS A STEERING ISSUE, AS WELL. THE DEALER WAS UNABLE TO REPLICATE THE PROBLEMS. UPDATED 08/06/14

NHTSA ID

10605264

Incident

Feb 3, 2014

VEHICLE WAS PURCHASED NEW FROM A DEALERSHIP. THE VEHICLE IS MODIFIED AND SOLD COMMERCIALLY UNDER THE RMT (ROCKY MOUNTAIN TRUCK WORKS) PACKAGE. THE PACKAGE INCLUDES MODIFIED SUSPENSION AND LIGHTING. WHEN ACCELERATING, THE TRANSMISSION FAILS TO SHIFT INTO A PASSING GEAR CAUSING THE RPM(S) TO EXCEED 6000 AT WHICH POINT THE REV LIMITER SHUTS DOWN POWER TO THE VEHICLE UNTIL THE RPM(S) ARE BACK IN A SAFE OPERATING LIMIT. THE FIRST TIME THIS HAPPENED, I WAS ATTEMPTING TO PASS A VEHICLE ON A SECONDARY TWO LANE HIGHWAY. WHEN I WAS IN THE PASSING LANE, I ACCELERATED TO OVERTAKE THE VEHICLE BUT THE RPM LIMITER SHUT DOWN POWER MIDWAY THROUGH THE PASSING. WITH ONCOMING TRAFFIC, AND LOSS OF POWER, IT MADE FOR A VERY SERIOUS SITUATION. I HAVE CONTACTED THE DEALERSHIP AND THEY HAVE WORKED ON THE VEHICLE MULTIPLE TIMES TO TRY AND CORRECT WITHOUT SUCCESS. THEY HAVE CONFIRMED THAT THIS HAPPENING WITH ALL THE RMT MODIFIED VEHICLES THAT THEY HAVE TEST DRIVEN. THESE VEHICLES ARE COMMERCIALLY MARKETED AND IT IS ONLY A MATTER OF TIME BEFORE SOMEONE IS NOT AS LUCKY AS I WAS. *TR

NHTSA ID

10598620

Incident

May 1, 2014

Mileage

1,000 mi

BRAKE AND THEN ACCELERATE LOSSES POWER TRANSMISSION SLIPS. WHEN TRYING TO MERGE TO FREEWAY I BRAKE AND THEN TRY TO ACCELERATE IT LOOSES POWER TRANSMISSION SLIPS. *TR

NHTSA ID

10592945

Incident

Apr 30, 2014

Mileage

165 mi

THE VEHICLE HAD BEEN PARKED FOR OVER THREE HOURS AT WHICH TIME IT WAS ENGULFED IN FLAMES. THE ENTIRE ENGINE COMPARTMENT CONSUMED BY FIRE. WE HAD TAKEN THE VEHICLE 2 WEEKS EARLIER TO A DEALER TO HAVE THE RECALL COMPONENT REPLACED BUT IT APPEARS THAT THE PROBLEM WAS NOT CORRECTED AND NOW WE HAVE A VEHICLE WHICH WAS ONLY 4 MONTHS OLD AS A PIECE OF WORTHLESS PILE OF METAL. GM HAS BEEN SLOW TO REACT TO THIS ISSUE AND HAS REQUESTED THAT WE FIRST HAVE OUR INSURANCE COMPANY LOOK AT THE VEHICLE VS. SEEM SEND THEM ONE TO LOOK AT THE THIS. *TR

NHTSA ID

10574059

Incident

Mar 14, 2014

Mileage

17,500 mi

VEHICLE HESITATES AND STALLS UPON ACCELERATION. ACCORDING TO GM DOCUMENT ID NUMBER [XXX] THIS IS A NORMAL CONDITION AND THEY HAVE PROGRAMMED THE VEHICLE TO DO THIS. IF GOING INTO TRAFFIC AND TRYING TO ACCELERATE, THE BUILT IN DELAY CAN CAUSE CLOSE CALLS AT BEST AND WORST CASE AN ACCIDENT. THIS COUPLED WITH THE TRANSMISSION ISSUES MENTIONED IN DOCUMENT ID NUMBER 3575856 CREATES THE PERFECT STORM FOR INJURY AND / OR DEATH. GM REFUSES TO ADDRESS THE ISSUE OTHER THAN TO SAY THEY FEEL IT IS NOT A PROBLEM. THIS COVERS VIRTUALLY ALL GM VEHICLES SINCE 2007 WITH THE 6 SPEED TRANSMISSION. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ID

10567428

Incident

Jan 7, 2014

Mileage

2,000 mi

I HAD MY TRUCK'S ECM REPROGRAMMED LAST FRIDAY (1/17) DUE TO RECALL #14V007, AND EARLIER THIS EVENING (1/24) THE CHECK ENGINE LIGHT CAME IN AND THE DIC SHOWED AN "ENGINE POWER IS REDUCED" MESSAGE. THE ENGINE RAN VERY SLUGGISH AND I PARKED IT AS GM RECOMMENDED TO DO IN THEIR RECALL LETTER. THIS IS THE SECOND TIME THIS HAS HAPPENED NOW. I THOUGHT THAT THE NEW SOFTWARE WAS SUPPOSED TO CORRECT THAT ISSUE? *TR

NHTSA ID

10561405

Incident

Jan 24, 2014

Mileage

730 mi