2016 GMC YUKON XL Unknown Or Other Problems

I bought 2016 Yukon XL 9/2020. At 74k miles (2022), the transmission was replaced by warranty. Now (2025), at 126k miles, the transmission needs replaced again. This can’t be normal.

I purchased a used 2016 Yukon xl may 20 2024. Over the last month only put 2k miles on it. I continue to receive a message to service trailer brake system. I dismiss this and it continues to chime and be a nuisance popping up blocking my dash from seeing important things like speed etc and the noise is extremely distracting as a driver. I’m unable to use the hands free talking through Bluetooth as it interrupts quite frequently. This makes driving an extremely dangerous and unpleasant ride

WATER LEAKED INTO THE VEHICLE'S ROOF MOUNTED ANTENNA. THIS CONDITION PREVENTED THE VEHICLE'S ONSTAR SYSTEM FROM ACCURATELY DETERMINING THE VEHICLE'S LOCATION; DISABLED THE VEHICLE'S COMPASS, NAVIGATION, AND XM RADIO SYSTEMS; ILLUMINATED THE VEHICLE'S RED ONSTAR INDICATOR; AND ALLOWED WATER INTO THE INTERIOR DRIVER COMPARTMENT. THIS CONDITION OCCURRED IN BOTH THE STATIONARY AND IN MOTION STATES. GM ISSUED PRODUCT BULLETIN # 15155 FOR 2015 MODEL YEAR FOR THE SAME ISSUE, BUT DID NOT CORRECT FOR 2016 MODEL YEAR. ISSUE RELATED TO REPLACEMENT OF PART # 23258460. THIS PART WAS REDESIGNED FOR 2017 MODEL YEAR TO ELIMINATE THE DESIGN DEFECT BY RELOCATING THE MOISTURE WEEP HOLE ON THE BASE GASKET FROM THE REAR TO THE FRONT TO ACCOMMODATE THE ROOF SLOPE.

Mileage: 62,601

THE FRONT COLLISION AVOIDANCE SYSTEM DOES NOT WORK. I CAN SET A 1-3 BAR ALERT ON THE STEERING WHEEL, HOWEVER IN THE 3 MONTHS I'VE OWNED THE CAR AND TRYING DIFFERENT MANEUVERS AT DIFFERENT SPEEDS, I DON'T GET A AN AUDIBLE NOR VISUAL RED LIGHT WARNING THAT I'VE EXPERIENCED ON A NEWER CHEVY IMPALA I DRIVE. THE DASH INFO CENTER BELOW THE GAUGES WILL CHANGE FROM A GREEN SEMI-CIRCULAR 3 BAR SYSTEM TO A YELLOW IF I COME WITHIN THE 3 CAR LENGTHS SET OF ANOTHER VEHICLE WHILE DRIVING. I'VE RESEARCHED THIS ISSUE USING GOOGLE AND QUITE A FEW PEOPLE SAY DIFFERENT GMC MODELS WITH THIS SYSTEM ALL BEHAVE DIFFERENTLY. EVERYONE USES THE YOU TUBE VIDEO BY GM AS THE EXAMPLE OF HOW IT IS SUPPOSED TO WORK. NOTE, MY WINDSHIELD NEXT TO THE REARVIEW MIRROR IS CLEAN, SO THE SENSORS ARE NOT IMPEDED. TO ME, SETTING THE SYSTEM TO THE MAXIMUM FORWARD DISTANCE TO AVOID A COLLISION GIVES YOU A FALSE SENSE OF SECURITY THAT COULD EASILY LEAD TO AN ACCIDENT. THE SYSTEM DOES NOT WORK AS DESIGNED.

Mileage: 83,235

BRAKES DO NOT WORK AT LOW SPEEDS. GMC TOLD ME THAT THE PARTS HAD BEEN BOUGHT BACK BY GM AND THERE WAS NO WAY TO FIX IT 8 MONTHS AGO AND NOW THEY STATE THERE IS A SPECIAL WARRANTY ADDED EXCEPT MY MILEAGE IS OVER THE WARRANTY! BRAKES EITHER ARE HARD AS A BRICK TO PUSH OR/AND DON'T WORK AT ALL. I WAS TOLD TO REV THE ENGINE WHEN GOING SLOW OR BACKING UP IN ORDER TO MAKE THE BRAKES FUNCTION PROPERLY. THAT WAS THE ADVICE FOR A MOTHER OF 4 CHILDREN. AC IS ALSO BLOWING HOT AIR.

Mileage: 70,000

MY DRIVER SIDE LED TAILLIGHT WENT OUT. YOU CAN NOT JUST CHANGE A BULB OR THE LED STRIP. IT REQUIRES THE WHOLE ASSEMBLY BE REPLACED. MY VEHICLE IS 2 YEARS OLD. IT SHOULD NOT GONE OUT AFTER 2 YEARS, LET ALONE IT BEING AN LED WHICH IS SUPPPSE TO LAST MUCH MUCH LONGER THAN THAT. I WAS TOLD WHILE DRIVING, IT WOULD GO ON THEM OFF. IT WAS DUSK AND I WAS DRIVING ON A SURFACE STREET WITH LOTS OF TRAFFIC. THAT IS NOT SAFE. I HAVE MULTIPLE FRIENDS AND FAMILY MEMBERS WHO HAVE ALSO HAD THIS PROBLEM. THE INTERNET THREADS HAVE MANY MORE COMPLAINTS AS WELL.

Mileage: 45,400

AIR CONDITIONING SYSTEM CONSTANTLY BLOWS OUT HOT AIR. AIR CONDITION WAS RECHARGED AND STILL HAS NEGATIVE RESULTS.

Mileage: 25,430

BOUGHT SUV 6/25/2016 THE SAME WEEKEND THE ENGINE TURNS OFF AFTER A LEFT OR RIGHT TURN :IT HAS HAPPENED 3 TIMES SO FAR. 4 WEEK OLD 2016 YUKON DENALI XL, HAS STALLED 3 TIMES IN LAST 4 WEEKS, ENGINE CUTS OFF AFTER A LEFT OR A RIGHT TURN ONLY AFTER A SHORT DRIVE OUT OF HOME. THE SUV HAS TO BE RESTARTED! COULD HAVE EASILY HAD AN ACCIDENT OR WORSE. I TOOK IT TO THE WESTPOINT GMC DEALER, 3 TIMES. 1ST TWO TIMES, ALL OF SERVICE DEPTARTMENT COULD NOT DIAGNOSE THE PROBLEM. TODAY, AFTER A STALL, I CALLED ONSTAR, WHO RAN A DIAGNOSTICS TEST,BUT ONSTAR FOUND NOTHING OF VALUE , I LEFT IT AT DEALERSHIP AND CONTACTED DISTRICT MGR. MATT TILLSON . I WAS TOLD THAT THEY WOULD ESCALATE THE ISSUE. I DID TELL DEALER THAT GMC AND DEALERSHIP WOULD BE AT FAULT IF VEHICLE IS INVOLVED IN AN ACCIDENT AND STALLS NOR STOPS WHILE I AM DRIVING. I DID NOT WANT THE VEHICLE BACK WITHOUT THE PROBLEM HAVING BEEN FIXED. ITS DAY 6 TODAY. I NEED TO MAKE IT ABSOLUTELY CLEAR, I WILL NOT TAKE THE VEHICLE BACK UNTILL THE PROBLEM HAS BEEN DIAGNOSED, AND FIXED. I DO NOT WANT ME OR MY FAMILY OR GM SERVICE EMPLOYEE INJURED, OR WORSE, OR TO BE INVOLVED WITH A POSSIBLE ACCIDENT IN MY GMC YUKON DENALI XL. A FIELD SERVICE ENGINEER SHOULD HAVE BEEN ON THIS CASE ALREADY ! WILL IT TAKE AN ACCIDENT, OR INJURY BEFORE SOMEONE GETS ASSIGNED?

Mileage: 4,500

VIBRATION AT SPEEDS OVER 72 MPH BECOMES WORSE WHILE GOING UP GRADE WHILE ACCELERATING ..HAS BEEN IN SHOP MANY TIMES NEW TIRES, BALANCED MULTIPLE TIMES ,ALONG WITH SUSPENSION PARTS AND DRIVE TRAIN PARTS. STILL NOT FIXED SUV HAS 22 INCH RIMS.

Mileage: 2,100

I LEASED A 2016 YUKON DENALI XL ON 9/15/15. IT HAS TWO MAJOR PROBLEMS. 1. BUFFETING/PRESSURE NOISE - A NOISE AS IF A WINDOW IS CRACKED, EXCEPT IT'S NOT CRACKED. THIS OCCURS AT SPEEDS FROM 24MPH AND UP AND CAUSES EARS TO POP AND IS NOTICEABLE TO VIRTUALLY EVERY PASSENGER I HAVE HAD. 2. WHOLE-TRUCK VIBRATION - OCCURS BETWEEN 70-80MPH IN ENTIRE VEHICLE. WHEEL REPLACEMENTS, TIRE REPLACEMENTS, ROAD-FORCE BALANCING, DRIVESHAFT REPLACEMENT, DRIVESHAFT "BALANCING", ETC....NOTHING HAS FIXED IT. I HAVE DRIVEN 13 2016 YUKON, YUKON XL, TAHOE AND SUBURBANS. EVERY SINGLE ONE HAS THE BUFFETING ISSUES. ALL BUT ONE HAS THE VIBRATION ISSUES. GM HAS ISSUED A PI STATING THAT THE ROOF BOWS MAY HAVE COME DISCONNECTED AND THEY NEED TO BE REATTACHED. THE ISSUE HERE IS THAT REATTACHING THEM DOESN'T FIX THE BUFFETING ISSUE. I HAVE A DATE-STAMPED LOG OF EVERY DEALER VISIT, CONVERSATION, EMAIL, ETC. AND AM GLAD TO SHARE IT. THESE ISSUES ARE RIDICULOUS TO OCCUR IN ANY CAR MUCH LESS A 75K FLAGSHIP CAR THAT PULLS IN 3-7K IN PROFIT FOR GM/DEALERS PER VEHICLE.

Mileage: 7