2011 GMC SIERRA 2500 Electrical System Problems

On or about [XXX], the Transmission Control Module, FAILED, on my 2011GMC Denali 2500 6.6 diesel. It was a KNOWN faulty part .General Motors was aware of the issue years ago. This part should have been deemed a Safety Recall item. Imagine, pulling a trailer down a busy Freeway, with Semi's presence. Module goes out, truck goes idle, people hurt or worse. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My ABS and traction control and stabiltrak and service trailer break system keep going on and off its the most distracting thing i have a video of the chime not stopping. My water in fuel sensor won't go off I have un plugged it and changed it and the filter and when I unplug it it stays On

THE VEHICLE ABRUPTLY CAUGHT FIRE WHILE DRIVING ON FEBRUARY 20TH 2021. THE REASON REMAINS UNKNOWN. PLEASE SEE ATTACHED IMAGES.

FUSE FOR LEFT TURN TRAILER BURNS OUT REPEATEDLY. NO WARNING OR INDICATION IT IS OUT UNTIL SOMEONE PULLS ME OVER OR TELLS ME WHEN STOPPED OR I CHECK. I HAVE THREE DIFFERENT TRAILS AND ALL ARE INVOLVED. THE FUSE WILL AT TIMES, BE BLOWN WITHOUT TRAILER ATTACHED. DEALER CAN'T FIND ISSUE (INTERMITTENT PROBLEM). NEVER KNOW WHEN FUSE BLOWS UNLESS I CHECK IT OR HOOK UP TRAILER. ALWAYS LEFT TURN TRAILER FUSE. TRUCK DOES HAVE TWO BATTERIES AND IS DIESEL. HAS HAPPENED MANY TIMES, EVER SINCE TRUCK WAS NEW. LAST TIME, JAN3, 2017. SOUNDS SIMILAR TO RECALL 14V407000. MY TRUCK WAS MANUFACTURED DURING TIME PERIOD GIVEN BUT NEVER RECEIVED NOTICE OF ANY KIND.

VEHICLE SPORADICALLY SPONTANEOUSLY LOCKS ALL 4 DOORS WITHIN 10 SECONDS AFTER CLOSING THE DOOR. NO TOUCHING OF REMOTE, NO ACCIDENTALLY HITTING A DOOR SWITCH WHILE EXITING THE VEHICLE. IT HAPPENS WHEN I'M AT THE BACK OF THE TRUCK, OR 10 FEET AWAY. ALWAYS WITHIN 10 TO 15 SECONDS AFTER EXITING. IT MAY SOUND STRANGE, BUT IT HAPPENS MORE OFTEN TOWARD THE END OF THE ONSTAR YEARLY CONTRACT. SAFETY CONCERN - I HAVE A 3-YEAR OLD GRANDSON WHO LIKES TO GO WITH ME. WHAT HAPPENS IF I FORGET TO TAKE THE KEYS WITH ME WHILE I'M REFUELING ON A HOT SUMMER DAY AND I HAVEN'T EXTENDED THE ONSTAR CONTRACT? OBVIOUSLY, I'D BREAK A WINDOW IF NECESSARY, BUT THEN I'D HAVE TO BUY ANOTHER WINDOW. IT APPEARS MY VEHICLE IS NOT THE ONLY ONE HAVING THIS PROBLEM. OF COURSE, NO TROUBLE CODES THEREFORE DEALER CAN'T REPAIR, BUT MY DEALER'S SERVICE REP ADMITS...

VEHICLE EXHIBITED "LOW COOLANT" WARNING IN DIC AFTER GM DEF RECALL WAS PERFORMED. "LOW COOLANT" WARNING RETURNED AFTER MULTIPLE REPAIRS TO THE COOLANT SYSTEM FROM SERVICING DEALER. FAILURE OF COOLANT SYSTEM RESULTED IN A FAILURE OF THE HEAD GASKET AND WATER INTRUSION INTO THE #7 CYLINDER. VEHICLE IS 12 MONTHS OLD AND HAD 15,000 MILES AT THE TIME OF FAILURE. VEHICLE ALSO EXHIBITED MULTIPLE ELECTRICAL SYSTEM FAILURES INCLUDING: DEAD BATTERY NO START CONDITION MULTIPLE TIMES TRAILER BRAKE SYSTEM FAILURE ENGINE HOUR METER FAILURE INTERMITTENT ELECTRICAL FAILURES FROM DOOR LOCKS, LIGHTS, RADIO. SELLING DEALER RECALIBRATED ECM TWICE, BUT ELECTRICAL ISSUES ARE STILL PRESENT. *TR

WE PURCHASED 24 2011 GMC 2500 TRUCKS WITH OMAHA UTILITY BODIES. ABOUT 1 MONTH AFTER PUTTING THE UNITS IN SERVICE WE HAD A FAILURE OF THE MODULE THAT OPERATES THE REAR BRAKE/TAIL/TURN LIGHTS. IT HAD NO LEFT TURN LIGHT,AND THE RIGHT TURN OPERATED WITH THE TURN SWITCH SET TO LEFT OR RIGHT. WE REMOVED THE MODULE (INSTALLED BY PALFLEET) FROM ANOTHER VEHICLE AND INSTALLED IT ON THE ONE WITH THE PROBLEM. THAT CORRECTED THAT UNIT.SINCE THAT TIME WE HAVE HAD 6 MORE UNITS THAT HAVE FAILED IN A SIMILAR MANNER,BUT VARIED LIGHTS TO INCLUDE RIGHT/LEFT TURN AND BRAKE LIGHTS.WITH ANY OF THESE LIGHT INOPERATIVE,THE VEHICLES ARE NOT IN COMPLIANCE WITH FMVSS 108, OR ANY OPERATIONAL STANDARD.NOW PALFLEET WANTS TO SELL US NEW LIGHTS TO CURE THE PROBLEM.TEXT OF THEIR EMAIL FOLLOWS:[XXX], IN UNDERSTANDING FROM KEN PITTS IN SERVICE AND JOHN PANNELL IN OUR MATERIALS DEPARTMENT THAT SOME OF THE MULTIPLE...