2019 GMC Sierra Denali

ELECTRIC/ELECTRONIC/COMPUTER ISSUES. MOST ISSUES ARE INTERMITTENT, SOME HAPPEN ALL THE TIME. THE INTERMITTENT ONES SOMETIME HAPPEN IN CLUSTERS (MULTIPLE TIMES A DAY THEN NOT FOR DAYS, WEEKS, MONTHS) A FEW HAVE ONLY HAPPENED ONCE SO FAR. THE FOLLOWING ISSUES HAPPEN ALL THE TIME. DOES NOT COME OUT OF CRUISE CONTROL AUTOMATICALLY DURING COLLISION ALERT. DOES NOT AUTOMATICALLY BRAKE DURING IMMINENT COLLISION WITH AUTO BRAKE FEATURE TURNED ON. SECONDARY BLUETOOTH PHONE DOES OUTGOING CALLS THROUGH TRUCKS INFO SYSTEM. HEADS-UP DISPLAY GIVES DOUBLE TURN DIRECTIONS DURING ROUTE GUIDANCE NAV. BLUETOOTH TEXTING DOES NOT WORK. THE FOLLOWING ISSUES HAPPEN FREQUENTLY. TRANSMISSION BANGS/SHUDDERS PERIODICALLY, ACCELERATING, NOT ACCELERATING, SLOWING DOWN, JUST DRIVING, MOSTLY ON LEVEL GRADE. SOMETIMES STRONG ENOUGH TO FEEL LIKE I WAS REAR ENDED, PASSENGERS HAVE JUMPED MANY RADIO MEDIA ISSUES WITH SOUND AND NAV BOOT UP. DURING PARKING MANEUVER AFTER COMING OUT OF REVERSE AND GOING INTO DRIVE, FORWARD CAMERA WOULD COME ON AND THEN SWITCH TO NAV SCREEN WHEN I TOOK MY FOOT OFF THE BRAKE. TO RESOLVE WOULD GO IN REVERSE THEN BACK TO DRIVE AND THE FRONT CAMERA WOULD STAY ON. AFTER VEHICLE START I GO INTO DRIVE AND FRONT CAMERA COMES ON. SOMETIMES IT DOES NOT IN THE EXACT SIMILAR CIRCUMSTANCES. NO INDICATION FROM FORWARD DETECTION SENSORS. AFTER BACKING OUT OF A PARKING SPOT, GOING INTO DRIVE FORWARD CAMERA COMES ON THEN THE WHOLE SCREEN GOES BRIGHT BLUE, AFTER A FEW SECONDS FORWARD CAMERA COMES BACK ON UNTIL I SPEED UP. OTHER ISSUES NOT SO FREQUENT. HAVE BEEN TO DEALERSHIP OVER 9 TIMES FOR A TOTAL OF 37 DAYS IT WAS IN THE SHOP. GMC CAC USELESS AND DO NOT KNOW THE PRODUCT. DEALERSHIP TECHNICIANS ARE NOT FAMILIAR WITH NEW PRODUCT OR HAVE THE COMPUTER SKILL SET TO FIX.

ON JANUARY 23RD I STARTED THE GMC VIA THE GMC PHONE APP AND WHEN I GOT IN THE TRUCK PUSHED BRAKE AND START BUTTON AND THAT'S WILL GAUGES WENT CRAZY SAYING BRAKE MALFUNCTION .STEERING ,SPEED REDUCED TO 62 MPH AND BRAKE PEDAL WENT TO FLOOR WITH LITTLE TO NO BRAKES AND STOPPED THE TRUCK TURNED IT OFF AND ON TWICE BEFORE ALL CODES CLEARED EXCEPT NOW THE CHECK ENGINE LIGHT IS ON . BRAKES APPEARED TO WORK FINE AFTER TE SECOND TIME OF TURNING THE TRUCK OFF AND ON .970 MILES ON IT!

TL* THE CONTACT OWNS A 2019 GMC SIERRA DENALI. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO THE TULLEY BMW OF NASHUA DEALER (603-888-5050, LOCATED AT 147 DANIEL WEBSTER HWY, NASHUA, NH 03060) FOR AN OIL CHANGE, AND IT WAS MENTIONED THAT THERE WAS A RECALL. THE TECHNICIAN PERFORMED A SOFTWARE UPDATE AND REPAIRED THE SEAT BELT UNDER NHTSA CAMPAIGN NUMBER: 19V814000 (SEAT BELT). THE CONTACT STATED THAT FOLLOWING THE REPAIRS, LATER THAT SAME DAY, THE CONTACT ATTEMPTED TO USE THE PHONE AND THE DASHBOARD ILLUMINATED WITH ALL KINDS OF WARNINGS, INCLUDED, BRAKE FAILURE, NO ABS BRAKE. NO POWER STEERING. ETC. THE VEHICLE WAS TAKEN BACK TO THE DEALER WHO STATED THAT THE PHONE APP SHOULD NOT BE USED WITH THE SOFTWARE UPDATE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND PROVIDED A CASE NUMBER: [XXX], TELLING THE CONTACT TO EXPECT A CALL BACK. THE CONTACT WAS NOT CALLED BACK. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 6,200. *DT CONTACT STATED GMC PHONE APP REPAIRED. ('PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).')*JB

TL* THE CONTACT OWNS A 2019 GMC SIERRA DENALI. THE CONTACT STATED THAT THE REVERSE CAMERA AND THE FORWARD CAMERA FAILED, THE REVERSE AND FORWARD CAMERAS FLASHED, THE SCREEN BECAME BLUE IN COLOR, AND THE INSTRUMENT PANEL ALSO TURNED BLUE. THE VEHICLE WAS TAKEN TO AUTONATION GMC AND BUICK (330 NORTH GIBSON ROAD, HENDERSON, NEVADA 89014, (702) 558-3300), FOUR TIMES FOR THE FAILURE. THE DEALER TESTED THE ELECTRICAL SYSTEM AND REPROGRAMMED THE SOFTWARE ERROR. THE DEALER STATED THAT THE REARVIEW CAMERA AND VIDEO PROCESSING CONTROL MODULE VIDEO SOFTWARE WERE REPLACED; HOWEVER, THE REPAIR DID NOT CORRECT THE FAILURE. THE MANUFACTURER WAS CONTACTED AND PROVIDED CASE NUMBER: [XXX]. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 8,075. *DT*JB ('PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).')*JB