IllustrationAC CONDENSER LEAKING AT 72000 MILES, SO OUTSIDE OF WARRANTY. SHOULD BE COVERED REGARDLESS OF MILEAGE DUE TO A KNOWN ISSUE IN SPECIAL PROGRAM 17336. BOUGHT THIS CERTIFIED FROM DEALER IN 2017. AC JUST STOPPED COOLING A COUPLE OF WEEKS AGO, JUST BLOWS WARM AIR. IMPACTS DEFROSTING.
2015 GMC Yukon Denali Xl
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2015 GMC Yukon Denali Xl do not stand out strongly from the model-year median of 29.
About this comparison →How this year compares
Owner complaints by model year
Compare all Yukon Denali Xl years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
20–25K
1225–50K
2950–75K
775–100K
5100–150K
0150K+
55 reports with mileage · 10 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Exterior Lighting. Review the 36 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 16 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
65 reportsFAULTY, POORLY MADE TAIL LIGHTS THAT NEED TO BE ENTIRELY REPLACED (NOT JUST THE BULB) AT MORE THAN $700 EACH. WHEN SPENDING SO MUCH ON A CAR, THIS IS LITERALLY INSANE NOT TO BE COVERED UNDER ANY WARRANTY. GMC DRIVERS DESERVE MORE THAN THIS POORLY MADE LED LIGHT SYSTEM. THE PLASTIC WINDOW TRIM PIECES ALSO DETACH DUE TO CHEAP PLAS…
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FAULTY, POORLY MADE TAIL LIGHTS THAT NEED TO BE ENTIRELY REPLACED (NOT JUST THE BULB) AT MORE THAN $700 EACH. WHEN SPENDING SO MUCH ON A CAR, THIS IS LITERALLY INSANE NOT TO BE COVERED UNDER ANY WARRANTY. GMC DRIVERS DESERVE MORE THAN THIS POORLY MADE LED LIGHT SYSTEM. THE PLASTIC WINDOW TRIM PIECES ALSO DETACH DUE TO CHEAP PLASTIC CLIPS. I'VE HAD TO LITERALLY USE DOUBLE SIDED TAPE AND GLUE TO STICK THEM BACK ON A $70K+ CAR. IT'S HUNDREDS OF DOLLARS TO REPLACE PIECES THAT ARE LITERALLY PART OF THE BODY OF THE VEHICLE.
OUR PASSENGER TAILLIGHT WENT OUT AND THE DEALERSHIP COST TO REPLACE IT WAS $811. I CALLED GMC CUSTOMER SERVICE AND AFTER 4 DAYS AND MULTIPLE PHONE CALLS THE BEST THEY COULD OFFER IN FINANCIAL ASSISTANCE WAS $80. I ASKED THE DEALERSHIP IF I COULD HAVE THE BROKEN LIGHT AND THEY WANTED ME TO PAY $50 TO TAKE IT WITH ME. A GOOGLE…
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OUR PASSENGER TAILLIGHT WENT OUT AND THE DEALERSHIP COST TO REPLACE IT WAS $811. I CALLED GMC CUSTOMER SERVICE AND AFTER 4 DAYS AND MULTIPLE PHONE CALLS THE BEST THEY COULD OFFER IN FINANCIAL ASSISTANCE WAS $80. I ASKED THE DEALERSHIP IF I COULD HAVE THE BROKEN LIGHT AND THEY WANTED ME TO PAY $50 TO TAKE IT WITH ME. A GOOGLE SEARCH TURNED UP MANY INSTANCES OF THIS HAPPENING. THE DEALERSHIP TOLD ME THAT THEY REPLACE 1-2 PER WEEK. THE TAILLIGHT REPLACEMENT ON THE YUKON FAMILY IS A SCAM. IT IS UNETHICAL FOR THEM TO CHARGE THAT MUCH FOR A REPLACEMENT WHEN IT IS INOWN TO BE DEFECTIVE. THE CAR IS LESS THAN 4 YEARS OLD AND HAS 66K MILES AND HAS NOT BEEN IN ANY COLLISIONS. JUST NORMAL ROUTINE USE RESULTED IN A COSTLY REPAIR AND, MORE IMPORTANTLY, IRRESPONSIBLE CUSTOMER SERVICE FROM THE GMC EMPLOYEES WHO WERE IN CHARGE OF HANDLING MY CASE.
'TAKATA RECALL' WE JUST PURCHASED OUR 2015 YUKON DINALI XL DECEMBER 20, 2018 AND HAVE HAD NOTHING BUT PROBLEMS WITH BRAKE LIGHT ( WHILE IN MOTION ) ON DRIVER-SIDE WORKING INTERMITTENTLY, SO WE REPLACED BOTH TAILLIGHTS WITH BRAND NEW ($700) ENCLOSED REAR LIGHT ASSEMBLY AND NOW WE ARE HAVING AN ISSUE WITH DRIVER SIDE ONCE AGAIN. …
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'TAKATA RECALL' WE JUST PURCHASED OUR 2015 YUKON DINALI XL DECEMBER 20, 2018 AND HAVE HAD NOTHING BUT PROBLEMS WITH BRAKE LIGHT ( WHILE IN MOTION ) ON DRIVER-SIDE WORKING INTERMITTENTLY, SO WE REPLACED BOTH TAILLIGHTS WITH BRAND NEW ($700) ENCLOSED REAR LIGHT ASSEMBLY AND NOW WE ARE HAVING AN ISSUE WITH DRIVER SIDE ONCE AGAIN. I'M VERY PROUD TO BUY AMERICAN MADE PRODUCTS BUT AFTER SEEING HOW MANY GMC MONTHLY COMPLAINTS WITH THIS SAME ISSUE, YOU WOULD THINK THAT GM WOULD STAND BEHIND THEIR PRODUCT. I KNOW MYSELF BEING IN BUSINESS IF I HAD A COMPLAINS MORE THAN THREE TIMES A MONTH I WOULD TRY MY BEST TO CORRECT THE PROBLEM TO KEEP FROM HAVING A BAD REPUTATION AND HAVE A FUTURE CUSTOMERS!! I TAKE PRIDE IN MY WORK FOR WHAT OUR CUSTOMER PAYS, AND EXPECT THE SAME FOR WHAT I PAY!!
CAR WAS PARKED IN COVERED GARAGE FOR 2 MONTHS. BATTERY WENT DEAD. ATTEMPTED TO CHARGE BATTERY WITH 20 AMP CHARGER AND BATTERY WOULD NOT TAKE A CHARGE. ATTEMPTED TO START CAR WITH BATTERY BOOSTER PACK AND LIGHTS WOULD COME ON, BUT CAR WOULD NOT START SITTING IN VEHICLE WITH KEY FOB. CONSOLE DISPLAY SAID THAT STEERING WHEEL WA…
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CAR WAS PARKED IN COVERED GARAGE FOR 2 MONTHS. BATTERY WENT DEAD. ATTEMPTED TO CHARGE BATTERY WITH 20 AMP CHARGER AND BATTERY WOULD NOT TAKE A CHARGE. ATTEMPTED TO START CAR WITH BATTERY BOOSTER PACK AND LIGHTS WOULD COME ON, BUT CAR WOULD NOT START SITTING IN VEHICLE WITH KEY FOB. CONSOLE DISPLAY SAID THAT STEERING WHEEL WAS LOCKED. CALLED AAA AND THEY CAME OUT TO REPLACE BATTERY. IT WAS THE ORIGINAL BATTERY...BUT HAD WORKED PERFECTLY WHEN CAR WAS PARKED EARLIER. NEW BATTERY ALLOWED LIGHTS AND ALL OTHER FUNCTIONS TO WORK, BUT CAR WOULD STILL NOT START. I CLOSED DOORS....HOOD AND THEN WAS ABLE TO START CAR WITH KEY FOB REMOTE STARTER. CAR WORKED PERFECTLY. SHUT CAR OFF AND TRIED TO START AGAIN AND WOULD NOT START NORMALLY, BUT WOULD START FINE REMOTELY. CALLED DEALERSHIP AND THEY HAD NOT HEARD OF THIS ISSUE, AND I MADE APPOINTMENT TO BRING IN. TWO DAYS BEFORE APPOINTMENT, CAR WOULD NOT EVEN START REMOTELY. ONLY THING THAT HAPPENED WAS THAT OUTSIDE MIRRORS WOULD RETRACT WHEN I TRIED TO START REMOTELY. PAID $90 TO HAVE CAR FLATBED TOWED TO DELEARSHIP. PAID $234.99 FOR DEALERSHIP TO CLEAR ALL CODES AND REPROGRAM. HAVE CALLED GMC SEVERAL TIMES AND THEY REFUSE TO ACKNOWLEDGE PROBLEM OR REIMBURSE ME. DEALERSHIP HAD NEVER SEEN THIS ISSUE BEFORE AND TOLD ME WHEN THEY SPOKE WITH GMC TECHNICAL DEPARTMENT THAT THIS ISSUE HAD NEVER OCCURRED. I FIND THAT VERY SUSPICIOUS. HOW COULD A BAD BATTERY TRIGGER A COMPUTER TO NOT ALLOW THE CAR TO START. THIS IS A VERY DANGEROUS SITUATION BECAUSE IF I WAS STRANDED ON A HIGHWAY AND THE BATTERY WENT DEAD AND A NEW BATTERY OR JUMP START WOULD NOT ALLOW COMPUTER TO START CAR, THERE COULD BE UNFORTUNATE CONSEQUENCES. I HAVE OWNED DOZENS OF CARS WITH THEFT DETERRENT SYSTEMS AND A BAD BATTERY THAT HAS BEEN REPLACED HAS NEVER TRIGGERED THE SYSTEM TO MAKE THE VEHICLE UNABLE TO START. PLEASE ADVISE. THANKS
VEHICLE TAIL LIGHTS AND BRAKE LIGHTS QUIT WORKING. THE LED CIRCUITS BREAK CAUSING THE CONNECTION TO SHORT OUT. BOTH THE TAIL LIGHTS AND BRAKE LIGHTS DO NOT WORK ONCE THE CIRCUIT IS BROKE. THE OWNER CAN'T SIMPLY FIX THE BURNT OUT TAIL LIGHT. ONE MUST COMPLETELY REPLACE THE ENTIRE ASSEMBLY, COSTING UPWARDS OF $1,000 FOR BOTH. THIS…
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VEHICLE TAIL LIGHTS AND BRAKE LIGHTS QUIT WORKING. THE LED CIRCUITS BREAK CAUSING THE CONNECTION TO SHORT OUT. BOTH THE TAIL LIGHTS AND BRAKE LIGHTS DO NOT WORK ONCE THE CIRCUIT IS BROKE. THE OWNER CAN'T SIMPLY FIX THE BURNT OUT TAIL LIGHT. ONE MUST COMPLETELY REPLACE THE ENTIRE ASSEMBLY, COSTING UPWARDS OF $1,000 FOR BOTH. THIS IS NOT COST EFFECTIVE AND IS DOWNRIGHT HAZARDOUS WHEN BOTH TAIL LIGHTS GO OUT, FOR BOTH THE OWNER AND OTHER DRIVERS ON THE ROAD. THE TAIL LIGHT ASSEMBLY SHOULD BE ABLE TO RESIST ROAD BUMPS AND VIBRATIONS.
THE BRAKE LIGHTS WORK INTERMITTENTLY.
LED LIGHTS IN THE REAR ARE REPEATEDLY DEFECTIVE
WHEN COMING TO A STOP THERE WOULD BE A SUDDEN SURGE AND IT FELT LIKE THE VEHILCE WAS BEING PUSHED FORWARD. THERE HAS BEEN A FEW OCCASIONS WHERE WE ALMOST HIT SOMETHING IN FRONT OF US BECAUSE OF THIS SURGE. THERE WAS A BAD SHUTTER THOUGH OUT THE VEHICLE AT 30 TO 50 MPH. MADE COMPLAINTS TO DEALER. THEY COULDN'T DUPLICATE THE PROBL…
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WHEN COMING TO A STOP THERE WOULD BE A SUDDEN SURGE AND IT FELT LIKE THE VEHILCE WAS BEING PUSHED FORWARD. THERE HAS BEEN A FEW OCCASIONS WHERE WE ALMOST HIT SOMETHING IN FRONT OF US BECAUSE OF THIS SURGE. THERE WAS A BAD SHUTTER THOUGH OUT THE VEHICLE AT 30 TO 50 MPH. MADE COMPLAINTS TO DEALER. THEY COULDN'T DUPLICATE THE PROBLEM. THIS WAS AT ROUGHLY 6K MILES AT THE TIME OF THE FIRST OIL CHANGE. AT 10K MILES THE VEHICLE STALLED OUT AND DIED IN OUR DRIVE WAY AFTER PUTTING IT INTO REVERSE TO BACK OUT. THE VEHICLE ROLLED BACK INTO THE STREET AS OUR DRIVEWAY IS AT A INCLINE WITH OUT ANY FUNCTIONS OR CONTROLS. LUCKY TRAFFIC WAS LIGHT AND THEY WERE ABLE TO AVOID HITTING US. I WAS ABLE TO START IT EVENTUALLY AND DROVE ITS STRAIT TO THE DEALERSHIP. THEY FOUND THE TORQUE CONVERTER WENT BAD AND REPLACED IT. COMPLAINED ABOUT THE ROUGH RIDE, NOISES AND LOOSE FEEL COMING FROM THE FRONT END SEVERAL TIMES AT 20,000 MILES AND 30,000 MILES. WHEN DRIVING THE VEHICLE OVER BUMPS WHILE IN A CURVE THE VEHICLE WOULD JERK TO THE SIDE PULLING THE STEERING WHEEL HARD TO THE SIDE IT WAS PULLED TOWARDS. THERE WERE A FEW OCCASIONS WHERE WE ALMOST HIT A VEHICLE OR CONCRETE WALL. THEY FINALLY REPLACE SOME COMPONENTS ON THE FRONT END. NO MORE NOISES FROM THE FRONT END FOR ABOUT 2,000 MILES AND THEN IT COMES BACK. THE SHUTTER IS BACK ALONG WITH ERRATIC SHIFTING. SERVICE REPLACES THE TORQUE CONVERTER AGAIN AT 45,000 MILES. THIS TIME IT LAST A LITTLE BIT LONG AND I DON'T START HAVING ISSUE WITH THE TORQUE CONVERTER UNTIL NEARLY 60,000 MILES. THE FRONT END STILL POPS, CREAKED AND FEELS LOOSE AT TIMES AND THE TORQUE CONVERTOR IS STILL FAILING.
A YEAR AGO, I WAS AT SERVICE AT THE SAME DEALER WITH A TRANSMISSION PROBLEM(TORQUE CONVERTER) WITH MY GMC YUKON XL 2015. WARRANTY TRANSMISSION WAS MADE 08/2017. ON 10/18/18, IN THE CITY OF ATLANTA GA ON HIGHWAY 400, THE CAR BEGAN TO TWITCH WHEN YOU PRESS THE GAS AND VIBRATE STRONGLY, UTTERING SOUNDS OF HOWLING, DRIVING WAS NOT S…
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A YEAR AGO, I WAS AT SERVICE AT THE SAME DEALER WITH A TRANSMISSION PROBLEM(TORQUE CONVERTER) WITH MY GMC YUKON XL 2015. WARRANTY TRANSMISSION WAS MADE 08/2017. ON 10/18/18, IN THE CITY OF ATLANTA GA ON HIGHWAY 400, THE CAR BEGAN TO TWITCH WHEN YOU PRESS THE GAS AND VIBRATE STRONGLY, UTTERING SOUNDS OF HOWLING, DRIVING WAS NOT SAFETY!!! RE-ISSUE REPAIR FROM DILLER CARL BLACK BUICK GMC ROSWELL GA.
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1PE18012 · Brake Vacuum Pump Failure
Opened Nov 20, 2018 · Closed Apr 10, 2022
Status: closed (inferred from source dates) · Service Brakes; Service Brakes, Hydraulic; Service Brakes, Hydraulic:power Assist:vacuum
On November 20, 2018, the Office of Defects Investigations (ODI) opened PE18-012 to investigate instances of sudden onset of a hard brake pedal that could result in extended stopping distance due to an issue with the brake assist vacuum pump in model year (MY) 2014 through 2016 GMC Sierra 1500 and Chevrolet Silverado 1500 series pickup trucks and MY 2015 through 2016 Cadillac Escalade, Chevrolet Suburban, Chevrolet Tahoe, and GMC Yukon SUVs.If the brake assist vacuum pump fails to operate as intended, the amount of brake power assist supplied to the driver can be significantly reduced, extending the subject vehicle stopping distance. GM stated that the root cause of pump failures was due to foreign debris such as oil sludge in the engine oil. GM stated that this debris can become trapped by the oil inlet filter screen. Under normal operation, this screen allows a small amount of oil into the brake vacuum pump. The foreign debris can, over time, clog the pump which can cause a loss of lubrication and a reduction in the amount of vacuum produced leading to a hard pedal and extended stopping distance.On December 13, 2018, GM issued a Special Coverage (N182202780) for the brake vacuum pump issue in MY 2014-2017 trucks and 2015-2017 SUVs on the K2XX platform for 6 years or 72,000 miles. Special Coverage repair includes the replacement of the vacuum pump and vacuum pump belt. Consumers received notification of the coverage via mail. On September 6, 2019, GM notified NHTSA that it was conducting safety recall 19V-645 which reprograms the electronic brake control module (EBCM) and included approximately 3.5 million trucks and SUVs. In October 2019, GM extended the terms of special coverage N182202780 to 10 years or 150,000 miles as well as now including the entire scope of recall 19V-645. In October 2020, GM expanded the scope of coverage N182202780 to include the MY 2018 Escalade and 2019 Tahoe.The remedy implemented in GM recall 19V-645 appears to be sufficient in addressing the safety-related concerns of this issue. Loss of vacuum assist now occurs at a progressive rate as well as there being a more timely warning of a brake problem to the driver through the driver information center (DIC). In view of the recall action and revision to the special coverage, this Preliminary Evaluation is closed. The agency reserves the right to take additional action if warranted by new circumstances. The ODI reports cited above are available for review online at NHTSA.gov under the identification numbers in the attached document.
Additional source detail variants (3)
Service Brakes
On November 20, 2018, the Office of Defects Investigations (ODI) opened PE18-012 to investigate instances of sudden onset of a hard brake pedal that could result in extended stopping distance due to an issue with the brake assist vacuum pump in model year (MY) 2014 through 2016 GMC Sierra 1500 and Chevrolet Silverado 1500 series pickup trucks and MY 2015 through 2016 Cadillac Escalade, Chevrolet Suburban, Chevrolet Tahoe, and GMC Yukon SUVs.If the brake assist vacuum pump fails to operate as intended, the amount of brake power assist supplied to the driver can be significantly reduced, extending the subject vehicle stopping distance. GM stated that the root cause of pump failures was due to foreign debris such as oil sludge in the engine oil. GM stated that this debris can become trapped by the oil inlet filter screen. Under normal operation, this screen allows a small amount of oil into the brake vacuum pump. The foreign debris can, over time, clog the pump which can cause a loss of lubrication and a reduction in the amount of vacuum produced leading to a hard pedal and extended stopping distance.On December 13, 2018, GM issued a Special Coverage (N182202780) for the brake vacuum pump issue in MY 2014-2017 trucks and 2015-2017 SUVs on the K2XX platform for 6 years or 72,000 miles. Special Coverage repair includes the replacement of the vacuum pump and vacuum pump belt. Consumers received notification of the coverage via mail. On September 6, 2019, GM notified NHTSA that it was conducting safety recall 19V-645 which reprograms the electronic brake control module (EBCM) and included approximately 3.5 million trucks and SUVs. In October 2019, GM extended the terms of special coverage N182202780 to 10 years or 150,000 miles as well as now including the entire scope of recall 19V-645. In October 2020, GM expanded the scope of coverage N182202780 to include the MY 2018 Escalade and 2019 Tahoe.The remedy implemented in GM recall 19V-645 appears to be sufficient in addressing the safety-related concerns of this issue. Loss of vacuum assist now occurs at a progressive rate as well as there being a more timely warning of a brake problem to the driver through the driver information center (DIC). In view of the recall action and revision to the special coverage, this Preliminary Evaluation is closed. The agency reserves the right to take additional action if warranted by new circumstances. The ODI reports cited above are available for review online at NHTSA.gov under the identification numbers in the attached document.
Service Brakes, Hydraulic
On November 20, 2018, the Office of Defects Investigations (ODI) opened PE18-012 to investigate instances of sudden onset of a hard brake pedal that could result in extended stopping distance due to an issue with the brake assist vacuum pump in model year (MY) 2014 through 2016 GMC Sierra 1500 and Chevrolet Silverado 1500 series pickup trucks and MY 2015 through 2016 Cadillac Escalade, Chevrolet Suburban, Chevrolet Tahoe, and GMC Yukon SUVs.If the brake assist vacuum pump fails to operate as intended, the amount of brake power assist supplied to the driver can be significantly reduced, extending the subject vehicle stopping distance. GM stated that the root cause of pump failures was due to foreign debris such as oil sludge in the engine oil. GM stated that this debris can become trapped by the oil inlet filter screen. Under normal operation, this screen allows a small amount of oil into the brake vacuum pump. The foreign debris can, over time, clog the pump which can cause a loss of lubrication and a reduction in the amount of vacuum produced leading to a hard pedal and extended stopping distance.On December 13, 2018, GM issued a Special Coverage (N182202780) for the brake vacuum pump issue in MY 2014-2017 trucks and 2015-2017 SUVs on the K2XX platform for 6 years or 72,000 miles. Special Coverage repair includes the replacement of the vacuum pump and vacuum pump belt. Consumers received notification of the coverage via mail. On September 6, 2019, GM notified NHTSA that it was conducting safety recall 19V-645 which reprograms the electronic brake control module (EBCM) and included approximately 3.5 million trucks and SUVs. In October 2019, GM extended the terms of special coverage N182202780 to 10 years or 150,000 miles as well as now including the entire scope of recall 19V-645. In October 2020, GM expanded the scope of coverage N182202780 to include the MY 2018 Escalade and 2019 Tahoe.The remedy implemented in GM recall 19V-645 appears to be sufficient in addressing the safety-related concerns of this issue. Loss of vacuum assist now occurs at a progressive rate as well as there being a more timely warning of a brake problem to the driver through the driver information center (DIC). In view of the recall action and revision to the special coverage, this Preliminary Evaluation is closed. The agency reserves the right to take additional action if warranted by new circumstances. The ODI reports cited above are available for review online at NHTSA.gov under the identification numbers in the attached document.
Service Brakes, Hydraulic:power Assist:vacuum
On November 20, 2018, the Office of Defects Investigations (ODI) opened PE18-012 to investigate instances of sudden onset of a hard brake pedal that could result in extended stopping distance due to an issue with the brake assist vacuum pump in model year (MY) 2014 through 2016 GMC Sierra 1500 and Chevrolet Silverado 1500 series pickup trucks and MY 2015 through 2016 Cadillac Escalade, Chevrolet Suburban, Chevrolet Tahoe, and GMC Yukon SUVs.If the brake assist vacuum pump fails to operate as intended, the amount of brake power assist supplied to the driver can be significantly reduced, extending the subject vehicle stopping distance. GM stated that the root cause of pump failures was due to foreign debris such as oil sludge in the engine oil. GM stated that this debris can become trapped by the oil inlet filter screen. Under normal operation, this screen allows a small amount of oil into the brake vacuum pump. The foreign debris can, over time, clog the pump which can cause a loss of lubrication and a reduction in the amount of vacuum produced leading to a hard pedal and extended stopping distance.On December 13, 2018, GM issued a Special Coverage (N182202780) for the brake vacuum pump issue in MY 2014-2017 trucks and 2015-2017 SUVs on the K2XX platform for 6 years or 72,000 miles. Special Coverage repair includes the replacement of the vacuum pump and vacuum pump belt. Consumers received notification of the coverage via mail. On September 6, 2019, GM notified NHTSA that it was conducting safety recall 19V-645 which reprograms the electronic brake control module (EBCM) and included approximately 3.5 million trucks and SUVs. In October 2019, GM extended the terms of special coverage N182202780 to 10 years or 150,000 miles as well as now including the entire scope of recall 19V-645. In October 2020, GM expanded the scope of coverage N182202780 to include the MY 2018 Escalade and 2019 Tahoe.The remedy implemented in GM recall 19V-645 appears to be sufficient in addressing the safety-related concerns of this issue. Loss of vacuum assist now occurs at a progressive rate as well as there being a more timely warning of a brake problem to the driver through the driver information center (DIC). In view of the recall action and revision to the special coverage, this Preliminary Evaluation is closed. The agency reserves the right to take additional action if warranted by new circumstances. The ODI reports cited above are available for review online at NHTSA.gov under the identification numbers in the attached document.