2003 GMC YUKON DENALI Electrical System Problems

MY VEHICLE, DUE TO FACTORY ALARM SYSTEM, IS UNSAFE AND UNFIT TO DRIVE -- A DEATH TRAP ON WHEELS. IT TURNED THE VEHICLE OFF, WHILE DRIVING, AND LOCKED ME INSIDE! I WAS THANKFULLY DRIVING DOWN THE FL KEYS, ON A BRIDGE BUT AT THE END OF THE BRIDGE, SO I WAS ABLE TO COAST DOWN AND OFF THE BRIDGE TO A SHOULDER... IF IT HAD DIED ANYWHERE ELSE ON THE BRIDGE OR ON AN FLAT ROAD I MAY HAVE BEEN STUCK THERE, BLOCKING TRAFFIC AT THE MINIMUM, IN AN ACCIDENT AND DEAD IF REAR-ENDED AND PUSHED OFF BRIDGE...BECAUSE THE DOORS LOCKED AND I WOULD HAVE BEEN UNLIKELY TO ESCAPE MY SINKING TRUCK...TO SAY NOTHING OF THE FALL ITSELF. IF I HAD BEEN GOING ON THE INTERSTATE AND I WAS IN A MIDDLE LANE FOR EXAMPLE, I COULD HAVE EASILY DIED BECAUSE MY TRUCK SUDDENLY STOPPED, WITHOUT INDICATION, AND I GOT REAR ENDED BY ANY NUMBER OF VEHICLES, INCLUDING LARGE SEMI TRUCKS. IF I HAD A DEAD KEYCHAIN FOB FOR THE ALARM, I WOULD HAVE BEEN LOCKED INSIDE THE TRUCK AS WELL -- BECAUSE ONLY THE KEYCHAIN WAS ABLE TO UNLOCK THE DOORS. IF MY PHONE HAD DIED OR I HAD NO SIGNAL, I WOULD BE TRAPPED INSIDE AS WELL IF AND UNTIL HELP ARRIVED UNLESS I GOT DESPERATE ENOUGH TO SMASH OUT A WINDOW. ALL THE MECHANICS I HAVE TAKEN IT TO HAVE STRUGGLED TO RESOLVED THE ISSUE, BUT IT IS SOMETHING THE TRUCK SHOULD HAVE BEEN RECALLED FOR AND FIXED FOR FREE BY GMC -- A SERIOUS SAFETY ISSUE. I HAVE RESEARCHED AND SEEN OTHER SIMILAR TRUCKS BY GMC HAVING THE SAME PROBLEM WITH FACTORY ALARMS AND MY MECHANIC SAYS HE HAS HAD 2 OTHER, DIFFERENT MAKES/MODELS, JUST ARRIVE WITH NEARLY SAME PROBLEM, AS IF BY FATE AND HE IS HAVING TROUBLE FIXING THOSE AS WELL -- BECAUSE ITS A FACTORY EMBEDDED ALARM PROBLEMS. IT REMAINS UNFIXED TO THIS DAY AND I AM NOT ABLE TO DRIVE THE VEHICLE UNTIL IT IS FIXED.

TRUCK STARTED TO HAVE MAJOR ELETRICAL ISSUES. BLUBS BURNING OUT OFTEN SOCKETS BURNING OUT HAD TO REPLACE TOO OFTEN. LIGHT COVERS MELTING. HEADLIGHTS OUT AND WILL NOT COME BACK ON FOR DAYS, HAVE TO TAP THEM TO GET THEM TO COME BACK ON. HORN BLOWS FROM ALARM ALL TIMES OF THE DAY AND NIGHT. INSIDE LIGHTS ON DASH, STEERING WHEEL AND DOORS WILL NOT WORK AT TIMES ALL LIGHTS ARE NOT FUNCTIONING CORRECTLY. LIGHTS AT TIMES TOO OFTEN WILL NOT WORK AT ALL. STABILITY WARNING LIGHT COMES OFTEN. AFRAID TRUCK WILL CATCH FIRE FROM THE ELECTRICAL ISSUES.. PLEASE HELP!!!!

Mileage: 82,000

DRIVING ON HWY GOING APRX 65MPH. VEHICLE SAID REDUCED ENGINE POWER AND STARTED SLOWING DOWN. I HAD TO PULL TO SIDE OF THE ROAD. I MANAGED NOT TO BE REAR ENDED. THIS HAS HAPPENED OFTEN. IT IS A POTENTIALLY LIFE THREATENING SITUATION. GMC KNOW ABOUT THIS PROBLEM AND HOW DIFFICULT IT IS TO FIND THE PROPER FIX. SOMEONE IS GOING TO DIE DUE TO THEIR LACK OF ACTION. IT'S NOT SAFE. *TR

Mileage: 125,000

I HAVE A 2003 GMC YUKON DENALI, IT RECENTLY BEGIN A SKIPPING LIKE MOTION ON THE SPEEDOMETER. THEN AFTER ABOUT A WEEK IT STARTED READING OFF BY ABOUT 30 MPH NOW WHEN DRIVING ITS SITS AT ZERO 90 PERCENT OF THE TIME, THE OTHER 10 PERCENT OF THE TIME IT STAY AT 15 MPH NO MATTER HOW FAST OR SLOW I AM MOVING. *TR

Mileage: 159,000

TL* THE CONTACT OWNS A 2003 GMC YUKON DENALI. THE CONTACT WAS DRIVING 60 MPH WHEN ALL OF THE GAUGES ON THE INSTRUMENT PANEL BECAME STUCK AND SOME WERE PROVIDING INACCURATE READINGS INCLUDING THE FUEL GAUGE AND THE SPEEDOMETER. THE VEHICLE WAS TAKEN TO THE DEALER BUT WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 90,000.

Mileage: 90,000

OFF AND ON SINCE LAST YEAR I HAVE HAD PROBLEMS WITH MY ELECTRICAL SYSTEM. JUST OUT OF THE BLUE THE CHECK ENGINE LIGHT WILL COME ON AND THE "REDUCE ENGINE SPEED" MESSAGE WILL SHOW UP ON THE DASHBOARD. AND MY SPEED WILL SHUT DOWN AND THE VEHICLE WILL ONLY GO ABOUT 25MPH. WE HAD TAKEN IT IN TO A SHOP AND THEY WERE UNABLE TO FIND THE ISSUE AND SAID IT WAS JUST A LOW BATTERY. WELL AFTER REPLACING THE BATTERY IT CONTINUES TO DO THIS OFF AND ON. ONCE THE CAR IS SHUT OFF AND RESTARTED IT WOULD BE FINE UNTIL THE NEXT INCIDENT. NOW WHILE DOING RESEARCH ON THIS ISSUE I HAVE READ THAT MANY PEOPLE ARE HAVING THIS PROBLEM. SOME PEOPLE HAVE EXPERIENCED THIS WHILE ON THE FREEWAY GOING 65MPH. THE ENGINE WILL JUST REDUCE SPEED AUTOMATICALLY. WHY IS THIS NOT A RECALL FOR SAFETY REASONS? WHAT HAS TO BE DONE FOR THERE TO BE A RECALL ON THIS ISSUE?

Mileage: 98,000

I HAVE HAD MULTIPLE ONGOING ELECTRICAL ISSUES WITH THIS VEHICLE. STARTING IN 2005, THE EXTERIOR ELECTRONICS (I.E. SIGNAL LIGHTS, STOP LIGHTS, HEAD LIGHTS, ETC) BEGAN TO MALFUNCTION. FOR EXAMPLE, I WOULD TRIGGER THE SIGNAL FOR ONE DIRECTION AND ALL OF THE SIGNALS FOR ALL DIRECTIONS WOULD TRIGGER... EVEN PRESSING THE BRAKES TRIGGERED ALL OF THE EXTERIOR SIGNALS. THE DEALER HAD A HARD TIME ISOLATING MY PROBLEM, BUT AFTER SEVERAL VISITS, THE DEALER WAS FINALLY ABLE TO DIAGNOSE AND RECTIFY IT... THEY ISOLATED IT TO A JUNCTION BOX WHERE ALL OF THE ELECTRONICS TERMINATE. HOWEVER, BY THIS TIME, MY VEHICLE WAS OUT OF WARRANTY, SO I HAD TO COVER THE COSTS FOR REPAIRING THE PROBLEM MYSELF. MY MOST RECENT ISSUES, WHICH, BY THE WAY, SEEM TO BE COMMON ISSUES, ARE TRIGGERED BY A MESSAGE STATING, "REDUCED ENGINE POWER". THIS PARTICULAR ISSUE DOES NOT ALWAYS RENDER THE SAME RESULTS... SOMETIMES THE VEHICLE'S SPEED WILL SIGNIFICANTLY DECREASE TO NEARLY A HALT, BUT OTHER TIMES I MAY JUST EXPERIENCE INCREASED IDLING OF THE ENGINE, EVEN IF I AM AT A COMPLETE STOP. MY UNDERSTANDING, ACCORDING TO HUNDREDS OF REPORTS THAT I HAVE READ ON THE MESSAGE BOARDS, IS THAT THIS ISSUE IS CAUSED BY EITHER A WIRING HARNESS THAT LEADS FROM THE ACCELERATOR TO THE THROTTLE BODY OR IT'S A DEFECTIVE THROTTLE BODY ALTOGETHER. I HAVE EXPERIENCED INTERMITTENT ELECTRICAL PROBLEMS WITH MY WINDOWS AS WELL, BUT THIS APPEARS TO BE A MINOR ISSUE WHEN COMPARED TO THE OTHER TWO THAT I ADDRESSED ABOVE. I WILL FILE A FORMAL COMPLAINT WITH GMC CORPORATE OFFICE TODAY AND SEE WHERE THAT GOES. *TR

Mileage: 97,000

DECEMBER 2008- INSTRUMENT CLUSTER WENT OUT- SPEEDOMETER NO LONGER WORKING DECEMBER 2008- BATTERY GAUGE NO LONGER WORKING MARCH 2009- STABILITRAK ISSUES...SOMETIMES THE STABILITRAK WOULD WORK AND AT TIMES IT WOULD NOT WORK JULY 2009 TO JANUARY 2010- REDUCED ENGINE POWER (ALMOST CAUSE 2 WRECKS) COULD NOT PERFORM A DIAGNOSIS...COULD NOT READ COMPUTER. CHANGED FUEL PUMP. NO MORE REDUCED ENGINE POWER MESSAGE AUGUST 2011- WHEEL BEARING ISSUES. REDUCED ENGINE POWER (ALMOST CAUSED WRECK...BACKED UP TRAFFIC) SEPTEMBER 2011- GAS PEDAL STICKING NOVEMBER 2011- REDUCED ENGINE POWER...HAPPENS 5 TIMES WITHIN A 30 MILE TRIP. ATTEMPTED TO RESOLVE PROBLEM SEVERAL TIMES, BUT RUNNING OUT OF OPTIONS. HAVE TO KILL CAR IN MIDDLE OF HIGHWAY OR INTERSECTION TO GET CAR TO WORK PROPERLY. *TR

Mileage: 117,000

TL* THE CONTACT OWNS A 2003 GMC YUKON DENALI. THE CONTACT STATED THAT THE INSTRUMENT CLUSTER GAUGES WOULD EITHER BECOME STUCK OR WOULD FLICKER BACK AND FORTH BETWEEN READINGS. THE DEALER AND THE MANUFACTURER WERE NOTIFIED OF THE FAILURE BUT DENIED ANY ASSISTANCE WITH REPAIRS. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 100,000 AND THE CURRENT MILEAGE WAS 119,000.

Mileage: 100,000

WHILE DRIVING ON A TRIP THE SPEEDOMETER IN MY 2003 GMC YUKON DENALI FROZE ON 72 MPH. SPEEDOMETER REMAINED STUCK ON 72 MPH FOR THE NEXT 2 HOURS, STILL SHOWING 72 MPH EVEN WHEN THE VEHICLE WAS COMPLETELY STOPPED. I SHUT THE CAR OFF AND RESTARTED IT WHENEVER POSSIBLE FOR THE NEXT 2 HOURS. EACH TIME AFTER I WOULD RESTART THE VEHICLE THE SPEEDOMETER WOULD DROP SLIGHTLY (ABOUT 5 - 10 MPH AT A TIME) TILL IT REACHED 36MPH, THEN IT WOULD NOT DROP ANY LOWER. SPEEDOMETER REMAINED STUCK ON 36 MPH FOR 2 DAYS. I EVENTUALLY DISCONNECTED THE VEHICLES BATTERY FOR APPROX. 30 MINUTES. AFTER RECONNECTING BATTERY SPEEDOMETER APPEARED TO CORRECT ITSELF. DURING THE NEXT MONTH I HAVE HAD NUMEROUS, SPORADIC INCIDENTS WHERE THE SPEEDOMETER WILL FREEZE UP WHILE DRIVING. THIS IS A VERY UNSAFE AND POTENTIALLY DANGEROUS SITUATION. ALSO THE LIGHT DIRECTLY BEHIND THE SPEEDOMETER HAS BURNT OUT, AS WELL AS NUMEROUS OTHER GAUGE, SWITCH, AND INDICATOR LIGHTS. *TR

Mileage: 96,851

SPEEDOMETER HAS QUIT WORKING. WE HAD AN 2004 IMPALA THAT THERE WAS A RECALL ON THE SPEEDOMETER, THOUGHT THERE MIGHT BE ON THIS ONE ALSO. *TR

Mileage: 82,000

TL*THE CONTACT OWNS A 2003 GMC YUKON DENALI. THE CONTACT STATED THAT THE INSTRUMENT PANEL GAUGES FAILED. THE GAUGES REMAIN AT ZERO WHEN THE VEHICLE IS IN MOTION. HE TOOK THE VEHICLE TO THE DEALER FOR REPAIR, BUT THE MILEAGE ON THE VEHICLE EXCEEDED THE 70,000 MILE REQUIREMENT TO REPAIR THE FAILURE. THE FAILURE MILEAGE WAS 100,500. UPDATED 02-26-09 *BF UPDATED 02/26/09. *JB

Mileage: 100,500

TL*THE CONTACT OWNS A 2003 GMC YUKON DENALI. THE CONTACT STATED THAT EVERYTIME HE ACTIVATED HIS LEFT TURN SIGNAL, THE HAZARD WARNING LIGHTS WOULD ILLUMINATE. SECONDLY, THE GAUGES ON THE INSTRUMENT CONTROL PANEL WERE INOPERATIVE. THIRDLY, THE BATTERY CONSTANTLY FAILED WITHOUT WARNING. LASTLY, WHEN SWITCHING GEARS ON THE VEHICLE, THE CONTACT HEARD A LOUD KNOCKING NOISE. HE TOOK THE VEHICLE TO THE DEALER ON NUMEROUS OCCASIONS AND A TECHNICIAN REPLACED THE BATTERY AND ALTERNATOR TWICE, AND THE ENTIRE INSTRUMENT CONTROL PANEL AS WELL. EVEN AFTER ALL OF THE REPAIRS WERE MADE, THE ELECTRICAL FAILURES STILL PERSIST. THE MANUFACTURER DID NOT PROVIDE ANY ASSISTANCE. THE FAILURE MILEAGE WAS 33,000 AND CURRENT MILEAGE WAS 47,400.

Mileage: 33,000

I HAVE A 2003 GMC YUKON DENALI THAT AT APPROXIMATELY 60,000 THE SPEEDOMETER STOPPED WORKING PROPERLY. I WOULD BE DRIVING IN A RESIDENTIAL AREA AND THE SPEEDOMETER WOULD READ 100 MPH OR MORE. SOMETIMES IT WOULD GET STUCK ON A CERTAIN SPEED EVEN AFTER PARKING. I LOOKED INTO GETTING IT FIXED BUT I WAS TOLD THAT IT WOULD COST BETWEEN 500 OR 1000 DOLLARS AND THERE WAS A POSSIBILITY THE WARRANTY WOULD NOT COVER IT. I HAVE NOW SEEN THAT I AM NOT THE ONLY ONE WITH THIS PROBLEM AND IT IS A SHAME THAT A VEHICLE COMPANY AS GMC HAS NOT STEPPED UP TO HELP US FIX THIS PROBLEM SINCE IT IS A DANGER TO HAVE A PROBLEM SUCH AS THIS. *TR

I HAVE A 2003 GMC YUKON DENALI AND AT 43,000 MILES, ONLY 3 YEARS OLD (IF THAT) IN AUGUST OF 2006, MY SPEEDOMETER JUST STOPPED ONE DAY BUT ONLY AFTER STICKING FOR A COUPLE OF DAYS ON 20-30 MPH. I WAS TOLD IT WOULD COST $435 TO FIX IT; BUT, I REFUSED BECAUSE IT SHOULD HAVE BEEN RECALLED. I BOUGHT IT IN FAYETTEVILLE, NC. AFTER RESEARCHING I FOUND OUT I WAS NOT ALONE IN OWNING A GM DEFECT, AS WELL AS, GM'S KNOWLEDGE OF THIS DEFECT SINCE AT LEAST 2003 IF NOT LONGER. THIS SHOWS A FLAGRANT DISREGARD FOR OUR SAFETY AND A VOLUNTARILY DECEITFUL ACT ON GMC'S BEHALF THAT IS UNACCEPTABLE. *TR

Mileage: 43,000

HEADLIGHT FLICKER HAD DEALER WORK ON IT AND REPLACE ONE HEADLIGHT BUT THIS DID NOT CORRECT THE PROBLEM. DEALER SAID THIS WAS NORMAL. NOTICE THE FLICKER WHEN I GO OVER BUMPS OR WHEN CORNERING TO THE LEFT. *NM

THE SPEEDOMETER ON MY 2003 GMC YUKON DENALI, WITH 40,000 MILES, HAS QUIT WORKING. THROUGH RESEARCH IT APPEARS THAT MANY GM OWNERS ARE EXPERIENCING THE SAME PROBLEM AND GM INSISTS ON REPAIR COSTS RANGING FROM $500 TO $1000 DOLLARS. THE SPEEDOMETER IN MY VEHICLE HAS STOPPED WORKING WHILE DRIVING DOWN THEN HIGH WAY. THIS FAILURE CAN LEAD TO ACCIDENTS AS WELL AS FINANCIAL BURDENS WHEN HAVING TO PAY FOR SPEEDING TICKETS DUE TO THE FAILURE TO MAINTAIN A SAFE SPEED. AT THIS POINT NOTHING HAS BEEN REPAIRED AS I REFUSE TO PAY GM TO REPAIR A DEFECTIVE PART, WHICH THEY ARE AWARE OF. I UNDERSTAND THAT A FATALITY HAS TO OCCUR BEFORE THE NTHSA AND/OR GM TO TAKE ACTION TO CORRECT THE PROBLEM. *NM

Mileage: 40,000

I HAVE A 2003 GMC YUKON DENALI. THE SPEEDOMETER ON MY VEHICLE IS FAULTY. AT ONE POINT I WAS DRIVING DOWN A RESIDENTIAL STREET AND MY SPEEDOMETER DISPLAY SHOWED THAT I WAS TRAVELING 120 MPH. MY WIFE RECEIVED A SPEEDING FOR TRAVELING 70 MPH IN A 50 MPH ZONE. AT THE TIME THE SPEEDOMETER INDICATED THAT SHE WAS ONLY TRAVELING 50 MPH. THIS HAS BEEN A PROBLEM BECAUSE WHEN DRIVING THE VEHICLE WE NEVER REALLY KNOW HOW FAST OR SLOW WE ARE ACTUALLY TRAVELING. HAVE SPOKE WITH OTHER CONSUMERS WHO OWN GMC YUKON AND THEY HAVE STATED THAT THEY HAVE ALSO EXPERIENCED PROBLEMS WITH THEIR SPEEDOMETER. *JB

I HAVE A 2003 YUKON WITH 70000 MILES. MY SPEEDOMETER HAS BECOME VERY ERRATIC. AT A FULL STOP IT READS ANYWHERE FROM 15 TO 70 MPH. WHEN DRIVING IT FREQUENTLY EXCEEDS THE 120 MPH MAXIMUM LIMIT EVEN THOUGH I AM TRAVELING WITH THE FLOW OF NORMAL TRAFFIC. I HAVE RESEARCHED THE PROBLEM AND HAVE FOUND THAT THIS IS A COMMON ISSUE WITH GM SUVS AND TRUCKS MANUFACTURED IN THE 2003/2004 TIME FRAME. THIS IS AN EXTREME SAFETY ISSUE AS NOT RELIABLY KNOWING YOUR SPEED CAN AND WILL CAUSE TRAFFIC ACCIDENTS. THE GMC DEALER SAYS THE SOLUTION IS TO REMOVE THE EXISTING INSTRUMENT PANEL CLUSTER (IPC) AND TO INSTALL A NEW OR RECONDITIONED ONE AT A COST OF OVER $700.00. *JB

Mileage: 69,000

I OWN A 2003 GMC YUKON DENALI. I'M HAVING A PROBLEM WHERE THE SPEEDOMETER AND HORN ARE INTERMITTENTLY GOING OUT. I CAN DRIVE THE TRUCK ONE DAY AND IT'S FINE AND LATER THAT DAY OR DURING ANOTHER DRIVE, THE HORN WILL NOT WORK AND THE SPEEDOMETER WITH EITHER DO A 'JUMPING' MOTION OR WILL NOT MOVE AT ALL. THERE HAVE BEEN NO CRASHES TO DATE. I CALLED MY LOCAL GMC DEALER AND THEY INFORMED ME THAT THEY HAD NOT HEARD OF THESE PROBLEMS WITH THE DENALI BUT THERE WAS A PROBLEM WITH THE HORNS ON THE SIERRA TRUCKS...*NM

I OWN A 2003 GMC YUKON DENALI. I'M HAVING A PROBLEM WHERE THE SPEEDOMETER AND HORN ARE INTERMITTENTLY GOING OUT. I CAN DRIVE THE TRUCK ONE DAY AND IT'S FINE AND LATER THAT DAY OR DURING ANOTHER DRIVE, THE HORN WILL NOT WORK AND THE SPEEDOMETER WITH EITHER DO A 'JUMPING' MOTION OR WILL NOT MOVE AT ALL. THERE HAVE BEEN NO CRASHES TO DATE. I CALLED MY LOCAL GMC DEALER AND THEY INFORMED ME THAT THEY HAD NOT HEARD OF THESE PROBLEMS WITH THE DENALI BUT THERE WAS A PROBLEM WITH THE HORNS ON THE SIERRA TRUCKS...*NM

AFTER NOTICING THAT MY 2003 YUKON DENALI HAD INTERMITTENT HEADLIGHTS/DASH LIGHTS DIMMING, I TOOK THE VEHICLE TO MY LOCAL DEALER TO HAVE IT CHECKED OUT. THEY PRESENTED ME WITH A DOCUMENT THAT STATED THE GM STATED THIS WAS NOT A MALFUNCTION AND WAS A NORMAL CONDITION. THERE IS NOTHING ABOUT THIS THAT IS "NORMAL". ANY TIME, AT NIGHT, A CURVE IS TAKEN AT ABOVE 35 MPH THE LIGHTS FLICKER. I HAD ALREADY PINPOINTED THAT IT HAD TO DO WITH THE VSES SYSTEM BECAUSE WHEN THE VSES IS TURNED OFF, THIS DOES NOT HAPPEN. WHEN A CURVE IS TAKEN AND THE FLICKERING OCCURS, THE VOLTAGE METER FOR THE BATTERY DROPS SUBSTANTIALLY AND THEN GOES RIGHT BACK TO NORMAL. THIS IS A DISTRACTION FOR THE DRIVER (MYSELF), ANY ONCOMING TRAFFIC, AND ANYONE THAT I AM BEHIND. THIS ABSOLUTELY NEEDS TO BE LOOKED INTO BEFORE IT CAUSES INJURY. *JB

Mileage: 18,000

HAVING ELECTRICAL PROBLEMS WITH THE VEHICLE. SEATS WILL MOVE WHILE DRIVING,HEATER IN SEATS COME ON WITH OUT LIGHT INDICATING THAT THEY ARE ON. AIR CONDITIONING SPEEDS WILL VARY.THERE ARE TO MANY PROBLEMS. BUT THE MAIN ONE WAS PUTTING THE CAR IN DRIVE AND IT WOULD GO INTO REVERSE.*AK

Mileage: 200

WHILE DRIVING AT NIGHT THE HEADLIGHTS AND DASH LIGHTS FLICKER OFF AND ON. THIS CONDITION ONLY OCCURS WHILE TRAVELING AT SPEEDS ABOVE 35 MPH AND WHEN HITTING A BUMP OR MAKING A CURVE. THIS CONDITION IS NOT ONLY DISTRACTING, BUT WHEN DRIVING AT NIGHT WITH NO OTHER AMBIENT LIGHT I AM UNABLE TO SEE ADEQUATELY AHEAD OF MY VEHICLE. I HAVE HAD DRIVERS AHEAD OF ME PULL OVER THINKING THAT I WAS FLASHING MY LIGHTS AT THEM AND OTHER DRIVERS GET IRATE BELIEVING THAT I AM "BRIGHT LIGHTING THEM". THIS IS A SAFETY ISSUE THAT APPEARS TO BE WIDESPREAD ON THE DENALI'S WITH STABILITRAK. GM STATES THAT THIS CONDITION IS "NORMAL". I BELIEVE THAT HEADLIGHTS ARE MEANT TO BURN STEADY AND NOT FLICKER OFF AND ON. I AM REQUESTING THAT NHTSA INVESTIGATE THIS WITH THE AUTO MANUFACTURER TO MANDATE A FIX BEFORE THERE ARE INJURIES ATTRIBUTED TO THIS CONDITION.*AK

Mileage: 3,000

HEADLIGHTS FLASH WHEN TURNING AT SPEEDS OVER APPROXIMATELY 35 MPH. THESE INCIDENTS HAVE CAUSED ROAD RAGE WITH OTHER DRIVERS. APPARENTLY, OTHER DRIVERS FEEL I'M FLASHING MY BRIGHT LIGHTS AT THEM. *JB

Mileage: 256

INTERIOR & EXTERIOR LIGHTS FLICKER DRASTICALLY ON WIDE TURNS TRAVELING OVER 40 MILES AN HOUR. THIS IS VERY DISTRACTING TO THE DRIVER OF THE VEHICLE, AND ALSO TO OTHER DRIVERS DRIVING IN FRONT. *NLM