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2015 GMC Yukon Xl

Owner reports · Recalls · Investigations

More warning signs than most Yukon Xl years

Owner complaints for the 2015 GMC Yukon Xl are substantially higher than the model-year median of 68.

About this comparison →
306Owner complaints

Model-year median: 68

2Recall campaigns

View recall details →

1Investigations

View investigation details →

How this year compares

Owner complaints by model year

Other model years Selected year
13
201222
201311
2014306
2015200
2016147
201752
2018
Compare all Yukon Xl years →

Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

Exterior Lighting
140Service Brakes
62Electrical System
58Power Train
35Engine
26
All reported categories
Unknown Or Other
26Steering
11Structure
10Fuel/propulsion System
6Suspension
5Forward Collision Avoidance
4Tires
3Vehicle Speed Control
3Wheels
3Lane Departure
2Service Brakes, Hydraulic
2Air Bags
1Electronic Stability Control (esc)
1Engine And Engine Cooling
1Fuel System, Gasoline
1Seats
1Visibility
1Visibility/wiper
1

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

200 reports with mileage · 106 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 140 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 62 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 58 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

6 crash reports3 fire reports2 injury reports

Engine complaints

26 reports
Clear category filter
127,000 miles · Apr 16, 2025
Engine

The contact owns a 2015 GMC Yukon XL. The contact stated that while his wife was driving approximately 35 MPH, there was an abnormal sound coming from the engine compartment before the vehicle stalled. The driver was able to steer the vehicle into a parking lot. The contact stated that his wife attempted to restart the vehicle; …

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The contact owns a 2015 GMC Yukon XL. The contact stated that while his wife was driving approximately 35 MPH, there was an abnormal sound coming from the engine compartment before the vehicle stalled. The driver was able to steer the vehicle into a parking lot. The contact stated that his wife attempted to restart the vehicle; however, the vehicle failed to restart. The contact stated that his wife observed that the check engine warning light illuminated while attempting to restart the vehicle. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired. The contact stated that prior to the engine failure, the vehicle had been towed to the same dealer for a failure to start. The contact stated that the starter motor and a 12-Volt battery were replaced. The vehicle was repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 127,000.

NHTSA ODI #11654930

Mileage unknown · Apr 7, 2025
Engine

Lifter failure due to AFM. Car shuttered suddenly and then threw codes and had a bad misfire with engine shaking. Spent $6,700 to rebuild.

NHTSA ODI #11653210

Mileage unknown · Feb 23, 2025
Engine

While traveling at highway speed, without warning, check engine light started flashing. Pulled off the highway at the next exit and vehicle died in the middle of the road. Towed vehicle to mechanic who inspected vehicle and found no compression (zero psi) on cylinder 1 indicating a major engine failure, rendering engine unrepair…

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While traveling at highway speed, without warning, check engine light started flashing. Pulled off the highway at the next exit and vehicle died in the middle of the road. Towed vehicle to mechanic who inspected vehicle and found no compression (zero psi) on cylinder 1 indicating a major engine failure, rendering engine unrepairable and the vehicle worthless. Either cam, lifter, piston failure in cylinder 1 causing massive engine failure and making the engine unrepairable due to metal shavings in the engine. This is the L87 engine, 6.2L V8 that has been plagued by problems by millions of GM owners. This car had been meticulously serviced and maintained with regularly scheduled full synthetic oil changes. The car have no indication of engine problems beforehand until the engine blew up at highway speeds.

NHTSA ODI #11644421

Mileage unknown · Jan 31, 2025
Engine

Collapsed lifter due to AFM system

NHTSA ODI #11639846

Mileage unknown · Jan 20, 2025
Engine

My wife drives a 2015 GMC Denali with the 6.2L engine. My daughter has an almost identical 2016 Denali with the same 6.2L engine. The 2015 had a serious event at approximately 125,000 miles when one of the rocker arm springs broke under ordinary driving conditions and caused the vehicle to be disabled in the midst of heavy tra…

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My wife drives a 2015 GMC Denali with the 6.2L engine. My daughter has an almost identical 2016 Denali with the same 6.2L engine. The 2015 had a serious event at approximately 125,000 miles when one of the rocker arm springs broke under ordinary driving conditions and caused the vehicle to be disabled in the midst of heavy traffic. The 2016 had a virtually identical event at 135,000 miles, which caused the rod to be ingested into the cylinder. I believe the rocker arm springs on these engines are defective, also evidenced by after-market double springs being sold for this engine. I have replaced all rocker arm springs on the 2016 with double springs and will do so shortly on the 2015. The GM dealer in Corpus Christi, TX where we had the 2016 towed told me that the only solution for it was to replace the entire engine at a cost of $11,000+. I paid the dealer $1,000+, towed the truck to San Antonio, and had a mechanic in my employ rebuild it for approximately $2,000. The 2015 had not broken the rod and was repaired by a dealer in San Antonio for approximately $1,250. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI #11637042

Mileage unknown · Sep 30, 2024
Electrical SystemEngineService Brakes

I keep getting a warning on my display on dash about my trailer brake system is not working. Also my temperature gauge stops working and I have to take off negative cable on battery to reset it. Temperature control sensor has been replaced but the problem still continues to happen.

NHTSA ODI #11617294

Mileage unknown · Jul 10, 2024
EnginePower Train

The radiator was replaced under PI1513F in 2020. I am currently experiencing the same coolant leak and thermostat issues. Coolant leaked into 4th cylinder and blew head gasket

NHTSA ODI #11600949

Mileage unknown · Nov 13, 2023
EngineSteering

My engine went out, and I had to have it rebuilt. There was a check engine light on. My steering goes out and in without warning while driving. I have talked to the dealership, and they stated that all safety recalls were done on my vehicle. My safety and those of others were put at risk when the steering failed. I almost crashe…

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My engine went out, and I had to have it rebuilt. There was a check engine light on. My steering goes out and in without warning while driving. I have talked to the dealership, and they stated that all safety recalls were done on my vehicle. My safety and those of others were put at risk when the steering failed. I almost crashed my vehicle in traffic. There were no warning messages prior to the failure. I did see that there was a recall in 2019 and the dealership will not inspect the vehicle without payment.

NHTSA ODI #11554898

110,345 miles · Aug 1, 2022
Engine

The contact owns a 2015 Yukon XL. The contact stated that while stopped at traffic light, several unknown warning lights illuminated. The contact was able to drive home safely. The vehicle was then towed to the dealer to be diagnosed. The contact was informed of a cylinder #1 misfire that had damaged the lifters. The vehicle was…

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The contact owns a 2015 Yukon XL. The contact stated that while stopped at traffic light, several unknown warning lights illuminated. The contact was able to drive home safely. The vehicle was then towed to the dealer to be diagnosed. The contact was informed of a cylinder #1 misfire that had damaged the lifters. The vehicle was repaired. The manufacturer was contacted and stated that the vehicle had exceeded mileage for the warranty coverage. No further assistance was provided. The failure mileage was 110,345.

NHTSA ODI #11476913

37,500 miles · Jul 22, 2020
EngineFire

OUR 2015 YUKON XL DENALI CAUGHT FIRE IN THE ENGINE COMPARTMENT WHILE WAITING AT STOP LIGHT ON SAT, WITH MY WIFE AND CHILDREN INSIDE. IT WAS A HOT DAY, OVER 95 DEGREES, AND WE WERE TURNING LEFT ACROSS TRAFFIC WHEN WE REALIZED THE SMELL AND SMOKE WAS COMING FROM OUR VEHICLE. SMOKE WHIFFED FROM UNDER THE HOOD AND NOXIOUS FUMES FILL…

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OUR 2015 YUKON XL DENALI CAUGHT FIRE IN THE ENGINE COMPARTMENT WHILE WAITING AT STOP LIGHT ON SAT, WITH MY WIFE AND CHILDREN INSIDE. IT WAS A HOT DAY, OVER 95 DEGREES, AND WE WERE TURNING LEFT ACROSS TRAFFIC WHEN WE REALIZED THE SMELL AND SMOKE WAS COMING FROM OUR VEHICLE. SMOKE WHIFFED FROM UNDER THE HOOD AND NOXIOUS FUMES FILLED THE PASSENGER COMPARTMENT, SCARING ME AND MY FAMILY. WE FINISHED THE TURN AND IMMEDIATELY PULLED OVER, SHUTOFF THE TRUCK, AND ALL ESCAPED FEARING IT WOULD BURST INTO FLAMES. WHATEVER WAS BURNING APPEARED TO STOP ONCE THE IGNITION WAS OFF. I OPENED THE DRIVER DOOR, POPPED AND RAISED THE HOOD TO LOOK FOR THE PROBLEM. I COULD SEE THAT A BELT, BEHIND THE SERPENTINE BELT, HAD SNAPPED, AND THERE WAS CHARRED DEBRIS ON THE EXPOSED MECHANICAL PULLEY FOR THE AC COMPRESSOR. AFTER FURTHER INSPECTION, I RESTARTED THE TRUCK WITH THE AC OFF, AND MONITORED FOR SMOKE. THE TRUCK SEEMED OK TO DRIVE HOME , SO WE DID WITHOUT AC ON A 95 DEGREE DAY. ON MONDAY WE DROVE THE TRUCK TO A TRUSTED MECHANIC FOR INSPECTION. THEY DIAGNOSED THE COMPRESSOR SEIZED AND ESTIMATED REPAIRS WERE $1,240. THE TRUCK IS GARAGED KEPT, AND GENTLY USED WITH ONLY 37,500 MILES. WE PURCHASED THE GMC CERTIFIED TRUCK IN JULY 2018 FROM A DEALER. I CREATED AN ACCOUNT ON GMC.COM & LOOKED THROUGH WARRANTY COVERAGE. A SPECIAL COVERAGE HAD BEEN EXTENDED FOR AC DEFECTS, BUT IT LAPSED IN MARCH, 2020. LOOKING FURTHER; MANY THOUSANDS OF GM OWNERS HAD SAME PROBLEM FROM SAME DEFECTIVE AC CONDENSER COMBI-COOLER. I CALLED GM TO COMPLAIN THEY NEVER TOLD US OF ABOUT A DEFECTIVE AC SYSTEM. THEY SAID ONLY A GM DEALER COULD DIAGNOSE THE PROBLEM, BECAUSE THEY ARE 'EXPERTS'. THAT SAME 'EXPERT' DEALER HAD SERVICED OUR YUKON 4 TIMES OVER THE PAST 2 YEARS AND NEVER ONCE SHARED THE INFORMATION ABOUT THE DEFECTIVE AC SYSTEM. GM & DEALER COLLUDED TO ALLOW WARRANTY TO EXPIRE.

NHTSA ODI #11340928

Official recalls

2

17V437000 · Air Bags:frontal; Air Bags:frontal:sensor/control MODULE-INACTIVE ; Seat Belts:pretensioner

Jul 10, 2017

General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD 2500 and 3500 vehicles. While being previously remedied for recall 16V-651, the affected vehicles may not have received the complete software update necessary to remedy the recall condition. Without the update, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.

Consequence & remedy

Consequence: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.

Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on August 4, 2017. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 17287.

Additional source detail variants (3)

Seat Belts:pretensioner

General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD 2500 and 3500 vehicles. While being previously remedied for recall 16V-651, the affected vehicles may not have received the complete software update necessary to remedy the recall condition. Without the update, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.

Consequence: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.

Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on August 4, 2017. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 17287.

Air Bags:frontal:sensor/control MODULE-INACTIVE

General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD 2500 and 3500 vehicles. While being previously remedied for recall 16V-651, the affected vehicles may not have received the complete software update necessary to remedy the recall condition. Without the update, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.

Consequence: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.

Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on August 4, 2017. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 17287.

Air Bags:frontal

General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD 2500 and 3500 vehicles. While being previously remedied for recall 16V-651, the affected vehicles may not have received the complete software update necessary to remedy the recall condition. Without the update, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.

Consequence: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.

Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on August 4, 2017. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 17287.

16V651000 · Air Bags:frontal; Air Bags:frontal:sensor/control MODULE-INACTIVE ; Seat Belts:pretensioner

Sep 8, 2016

General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark EV and SS vehicles. In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.

Consequence & remedy

Consequence: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.

Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on October 13, 2016. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 16007.

Additional source detail variants (3)

Seat Belts:pretensioner

General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark EV and SS vehicles. In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.

Consequence: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.

Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on October 13, 2016. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 16007.

Air Bags:frontal:sensor/control MODULE-INACTIVE

General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark EV and SS vehicles. In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.

Consequence: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.

Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on October 13, 2016. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 16007.

Air Bags:frontal

General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark EV and SS vehicles. In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.

Consequence: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.

Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on October 13, 2016. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 16007.

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

1

PE18012 · 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.