NHTSA owner reports · September 18, 2026 snapshot.
Steering complaints
9 reportsClear category filterMileage unknown · Apr 22, 2026
EngineSteeringVehicle Speed ControlCrash
My wife was driving down the highway and out of no where there was a loud taping sound, the vehicle started running real bad (skipping), the vehicle lost power and she lost control of the steering. As a result, she ran off the road into a ditch. this is a known concern with the 6.2 liter engines and all signs are pointing to lif…
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My wife was driving down the highway and out of no where there was a loud taping sound, the vehicle started running real bad (skipping), the vehicle lost power and she lost control of the steering. As a result, she ran off the road into a ditch. this is a known concern with the 6.2 liter engines and all signs are pointing to lifter failure. She could have ben seriously injured and GM is responsible for this.
NHTSA ODI #11732911
Mileage unknown · Feb 19, 2026
Forward Collision AvoidanceSteering
I was test driving the vehicle after some and as I was test, driving it, the steering lot up on me. Luckily, I was entering a residential area when it occurred down the street from my residency; in which I was able to drive it to my residency, during that short ride, you could smell a burning smell coming out along with some cra…
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I was test driving the vehicle after some and as I was test, driving it, the steering lot up on me. Luckily, I was entering a residential area when it occurred down the street from my residency; in which I was able to drive it to my residency, during that short ride, you could smell a burning smell coming out along with some crackling noises. I had to get the vehicle towed a week later to the mechanic shop where they fix one of my engine problems and verified that I needed a new power steering unit and gave me a quote, I couldn’t afford the word and started doing research and came across the recall for the power steering within my vehicle year, make and model. I replaced the power steering unit, but I’m having a difficult time celebrating the system..
NHTSA ODI #11719051
Mileage unknown · Nov 14, 2025
Electrical SystemEngineSteering
While driving vehicle the vehicle appears to shut off as if someone is turning off the ignition. The steering control becomes stiff, power is lost and electronics flash and turn off and on. This has happened on multiple occasions and is intermittent during acceleration. The accessible grounds have been checked, battery checke…
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While driving vehicle the vehicle appears to shut off as if someone is turning off the ignition. The steering control becomes stiff, power is lost and electronics flash and turn off and on. This has happened on multiple occasions and is intermittent during acceleration. The accessible grounds have been checked, battery checked and replaced, and alternator checked and verified to be charging appropriately. Several codes are present and have been cleared to return indicating low voltage issues with multiple systems.
NHTSA ODI #11699390
Mileage unknown · Oct 8, 2024
Electrical SystemSteering
Loses power randomly. More prominent at low speeds and turns. Has lost power going down the road, will turn back on. Stabilitrak lights and jerking steering wheel are more common. Will not always start right back up when it shuts all the way off/loses power. Loses clock but keeps radio stations. Had it scanned. Asked dealer abou…
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Loses power randomly. More prominent at low speeds and turns. Has lost power going down the road, will turn back on. Stabilitrak lights and jerking steering wheel are more common. Will not always start right back up when it shuts all the way off/loses power. Loses clock but keeps radio stations. Had it scanned. Asked dealer about issues/recalls and information with nothing more than “this is not common” and “we need to schedule a time for you to bring it in”. Times were not soon and they made it seem like it is not an urgent/emergent situation. Would not agree to me being able to talk with a tech. Looked into this as it seems common but nothing definite. Bad battery cables seem prominent, grounding issues, electronic steering module, and a few others. Seems like a GM problem that is known but not being handled. Greatly disappointed after reading up on it. Many vehicles with similar problems had recalls. Not sure how that process works. I was told it depends where it was manufactured/assembled. Wife was able to get a video of it the other day.
NHTSA ODI #11618632
100,000 miles · Oct 8, 2020
Steering
POWER STEERING LOSES POWER TEMPORARILY, POWER GOES OFF AND COME BACK ON WHEN I'M COMING TO A STOP AND MAKING A SLOW TURN
NHTSA ODI #11363322
38,000 miles · Sep 6, 2019
SteeringSuspension
VEHICLE SHAKES/VIBRATES ABOVE 35 MPH. WHEN VEHICLE ACCELERATES ABOVE 35 MPH THE THE STEERING WILL VIBRATE WITH A FEELING THAT THE SUSPENSION IS SHIMMYING/SHUDDERING RAPIDLY. THIS IS ESPECIALLY BAD ON AN INCLINE FROM A STOPPED POSITION. AS THE VEHICLE ACCELERATES UP THE INCLINE, WHEN APPROXIMATELY 35 MPH IS ATTAINED, THE ENTIRE V…
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VEHICLE SHAKES/VIBRATES ABOVE 35 MPH. WHEN VEHICLE ACCELERATES ABOVE 35 MPH THE THE STEERING WILL VIBRATE WITH A FEELING THAT THE SUSPENSION IS SHIMMYING/SHUDDERING RAPIDLY. THIS IS ESPECIALLY BAD ON AN INCLINE FROM A STOPPED POSITION. AS THE VEHICLE ACCELERATES UP THE INCLINE, WHEN APPROXIMATELY 35 MPH IS ATTAINED, THE ENTIRE VEHICLE WILL STEADILY SHUDDER/VIBRATE. TRAVELING AT HIGHWAY SPEEDS THE VEHICLE WILL RANDOMLY VIBRATE IN THE FRONT END AND IN THE STEERING WHEEL. THIS OCCURS WITH BRAND NEW TIRES THAT HAVE BEEN BALANCED AND RE-BALANCED TO CONFIRM IT IS NOT TIRE RELATED.
NHTSA ODI #11253701
189,000 miles · Aug 31, 2019
EnginePower TrainSteering
THE TRANSMISSION WENT OUT, THE ENGINE IS MAKING A NOISE AND A SERVICE CENTER SAID LOTS OF GM'S VEHICLES ARE HAVING THE SAME PROBLEM THE POWER STEERING SYSTEM ALSO STOP WORKING AND I HAVE TO REPLACE IT
NHTSA ODI #11252626
64,497 miles · Jul 15, 2019
Electrical SystemSteering
AT 64,497 MY WIFE'S POWER STEERING WENT OUT ON HER VEHICLE. THIS HAPPENED A DAY AFTER OUR TRIP TO ATLANTA, GA. WE TOOK IT TO OUR LOCAL GMC DEALERSHIP AND WAS NOTIFIED THAT 4 MODULES HAD TO BE REPLACED AND A RECOMMENDED WIRING HARNESS. IN 2015 GMC VEHICLES HAD A SIMILAR ISSUE AND RECALL BUT NOT THE 2016. THIS COST ME $1400 IN REP…
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AT 64,497 MY WIFE'S POWER STEERING WENT OUT ON HER VEHICLE. THIS HAPPENED A DAY AFTER OUR TRIP TO ATLANTA, GA. WE TOOK IT TO OUR LOCAL GMC DEALERSHIP AND WAS NOTIFIED THAT 4 MODULES HAD TO BE REPLACED AND A RECOMMENDED WIRING HARNESS. IN 2015 GMC VEHICLES HAD A SIMILAR ISSUE AND RECALL BUT NOT THE 2016. THIS COST ME $1400 IN REPAIRS.
NHTSA ODI #11232158
8,000 miles · Jul 26, 2016
Power TrainSteeringSuspension
EXCESSIVE VIBRATION/BUFFETING DRONE ISSUES (AT ALL SPEEDS OF THE VEHICLE) HAVE CAUSED SEVERE HEALTH ISSUES AND SAFETY HAZARDS FROM DRIVING THE VEHICLE. WITHIN THE FIRST 8,000 MILES OF OWNING THE CAR, THE CAR HAS NOW BEEN IN SERVICE FOR 40 DAYS AS GM TRIES AND REMEDY THE PROBLEM, BUT THERE DOES NOT APPEAR TO BE A FIX. SO FAR, DIA…
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EXCESSIVE VIBRATION/BUFFETING DRONE ISSUES (AT ALL SPEEDS OF THE VEHICLE) HAVE CAUSED SEVERE HEALTH ISSUES AND SAFETY HAZARDS FROM DRIVING THE VEHICLE. WITHIN THE FIRST 8,000 MILES OF OWNING THE CAR, THE CAR HAS NOW BEEN IN SERVICE FOR 40 DAYS AS GM TRIES AND REMEDY THE PROBLEM, BUT THERE DOES NOT APPEAR TO BE A FIX. SO FAR, DIAGNOSTIC TESTS INDICATED THAT THERE WAS A FAULTY BEARING IN THE REAR DIFFERENTIAL THAT LED TO SIGNIFICANT ABNORMAL WEAR THROUGHOUT THE DIFFERENTIAL AND THE DIFFERENTIAL NEEDED TO BE REBUILT. WHEN REBUILDING, THEY DISCOVERED THAT THE DISASSEMBLED DIFFERENTIAL HAD HEAVILY SCORED BEARINGS AND METAL SHAVING THROUGHOUT EVERY BEARING. RING GEAR AND PINION HAD IRREGULAR WEAR CAUSING A DRONE IN THE VEHICLE. RACE SURFACES WEAR GROUND AND SCARRED BAD.THE REBUILT DIFFERENTIAL DID NOT FIX THE ISSUE AND NOW AFTER HAVING FOUR NEW TIRES AND ROAD BALANCING, THE PROBLEMS DIDN'T DIMINISH BUT WERE EXACERBATED. AFTER REBUILDING THE DIFFERENTIAL AGAIN, GM HAS NOW DETERMINED THAT THE REAR AXLE MAY NEED TO BE REPLACED AND ENGINEERS ARE LOOKING INTO THE PROBLEM FURTHER. THE STEERING WHEEL SHAKES AND THE CAR HAS A TERRIBLE VIBRATION THAT WORSENS EVERY TIME GM ATTEMPTS TO SERVICE THE VEHICLE. THIS SEEMS TO BE A WELL-DOCUMENTED PROBLEM THAT GM HAS AVOIDED FIXING. WE ADVISE OTHER CONSUMERS TO BE AWARE OF THE SERIOUS SAFETY PROBLEMS RELATED TO THE POOR MANUFACTURING OF THE VEHICLE AND INABILITY OF GM TO REMEDY THE PROBLEM.
NHTSA ODI #10888624
Official recalls
3Jul 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.
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.
Apr 28, 2016
General Motors LLC (GM) is recalling certain model year 2016-2017 Chevrolet Silverado 1500 and 2016 Cadillac Escalade, Cadillac Escalade ESV, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, GMC Yukon and GMC Yukon XL vehicles. The front upper control arms may have inadequate welds near the control arm bushing.
Consequence & remedy
Consequence: Inadequate welds may allow the control arm to separate from the bushing, compromising steering and increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will replace the left and right front upper control arms and realign the vehicle, free of charge. The recall began on May 18, 2016. Until the repairs have been made, owners are advised not to drive their vehicles. Owners may contact Chevrolet customer service at 1-800-222-1020, Cadillac customer service at 1-800-458-8006, or GMC customer service at 1-800-462-8782. GM's number for this recall is 42190.
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.
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