2017 GMC YUKON DENALI Complaints

SHUDDER UNDER LIGHT, CONSTANT ACCELERATION AT 35MPH TO 55MPH, RPM UNDER 1,500. UPHILL GRADE IT IS ACCENTUATED. SHUDDER OCCURS FOR 1 SECOND ACROSS WHOLE VEHICLE, REOCCURS EVERY FEW SECONDS AT A CONSTANT INTERVAL. SEEMS TO BE SAME ISSUE WITH ALL 8L90 TRANSMISSIONS FROM GM/CHEVY/CADI.

TL* THE CONTACT OWNED A 2017 GMC YUKON DENALI XL. WHILE DRIVING AT HIGHWAY SPEEDS, THE VEHICLE EXHIBITED A BUFFETING EFFECT. BOMMARITO BUICK GMC WEST COUNTY (15736 MANCHESTER RD, ELLISVILLE, MO 63011, (636) 391-7200) TEST DROVE THE VEHICLE AND PERFORMED A PICOSCOPE DIAGNOSTIC TEST, BUT WAS UNABLE TO PROVIDE A SPECIFIC DIAGNOSIS AND REPAIR. THE FAILURE CAUSED HEADACHES AND DIZZINESS AND MEDICAL ATTENTION WAS NOT SOUGHT. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND STATED THAT THE CONDITION WAS NORMAL AND THERE WAS NO REPAIR. THE MANUFACTURER PROVIDED A 2018 GMC YUKON DENALI XL AS A TRADE-IN. THE VEHICLE WAS NOT REPAIRED. THE VIN AND FAILURE MILEAGE WERE NOT AVAILABLE.

TL* THE CONTACT OWNS A 2017 GMC YUKON DENALI. WHILE DRIVING APPROXIMATELY 70 MPH AND ATTEMPTING TO ACCELERATE, THE VEHICLE SUDDENLY STALLED. THE MESSAGE "CHECK TRAILER BRAKING SYSTEM" WAS DISPLAYED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TOWED TO THE LOCAL DEALER (KELLY BUICK/GMC, 585 STATE RD., EMMAUS, PA) WHERE IT WAS DIAGNOSED THAT THE ENGINE WAS FAULTY AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 9,980.

REAR TAIL GATE COMES DOWN ON YOU WHEN PUTTING IN OR TAKING OUT ITEMS. IN GARAGE AND PARKING LOT AT THE TIMES. HAPPENED SEVERAL TIMES IN LAST MONTH. OCCURANCES ARE VARIALBE. REPALCING LIFT GATE SUPPORT AND ACTUATOR DID NOT HELP. IN FOR SERVICE, UNABLE TO SOLVE SO FAR. STATED, WORKING AS DESIGNED.

WIND BUFFETING IN CABIN WHEN DRIVING CAUSING EARS TO POP, HEADACHE. OCCURS AT ALL SPEEDS WITH WINDOWS UP. NO VIBRATION IN STEERING. IT SOUNDS LIKE ONE REAR WINDOW IS DOWN, CAUSING A WIND BUFFETING SOUND, ALMOST LIKE A BOOM IN CABIN AREA. OCCURS ONLY WHEN VEHICLE IS IN MOTION, ALL STREETS/HIGHWAYS, ANY GEAR, HOT OR COLD, AND WITH PROPER TIRE INFLATION. VEHICLE IS OEM, NO MODIFICATIONS.

THE BRAKE PEDAL IS SEVERELY CLOSER THAN THE ACCELERATOR FROM THE DRIVER. WHEN TRYING TO STOP QUICKLY, THE DRIVER HAS TO LIFT FOOT SUBSTANTIALLY TO SHIFT OVER TO APPLY PRESSURE TO THE BRAKE. THIS IS EXTREMELY DANGEROUS AND TERRIBLY UNCOMFORTABLE. THE FOOT PEDALS, EVEN WITH THE ADJUSTMENTS, ARE TOO CLOSE TO THE DRIVER.