2016 Chevrolet Silverado 1500
Problems, recalls and owner-reported issues
Service brakes is the leading concern among 798 owner complaints filed for this model year. This is the 6th highest complaint count among 19 Silverado 1500 model years with reports.
Of the 2016 reports, 43 involved a crash and 10 involved a fire. 17 people were injured and 1 person died.
What owners report most often
Recalls and investigations
Air bags, side/window, curtain, inflatorSep 24, 2026
General Motors, LLC (GM) is recalling certain 2016 Chevrolet Silverado 2500/3500, GMC Sierra 2500/3500 vehicles, and 2016-2017 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. The left-side or right-side roof rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.
A detached end cap or inflator rupture can allow compressed gas to escape and project the end cap or fragments of the inflator into the vehicle, increasing the risk of injury.
Dealers will replace both RRAB modules, free of charge. Owner notification letters are expected to be mailed November 9, 2026. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N262569920. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on September 24, 2026.
Campaign 26V611000 on NHTSA.gov
Air bags, side/window, curtain, inflatorJul 1, 2021
General Motors LLC (GM) is recalling certain 2015-2016 GMC Sierra 1500, 2500, 3500, and Chevrolet Silverado 1500, 2500, and 3500 trucks. The roof-rail air bag (RRAB) inflator end cap may detach from the inflator, or the inflator sidewall may rupture.
A separated inflator end cap or inflator rupture can allow compressed gas to escape, resulting in the end cap or other components being propelled into the vehicle, increasing the risk of injury or crash.
Dealers will replace the left and right side RRAB modules, free of charge. Interim owner notification letters informing owners of the safety risk were mailed on August 18, 2021. Owners will receive a second notice when the remedy is available. Phase I owner notification letters were mailed on May 5, 2022. Phase II owner notification letters are expected to be mailed on May 31, 2022. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. This recall supersedes NHTSA recall number 20V-736. GM's number for this recall is N202324251.
Campaign 21V504000 on NHTSA.gov
Seat belts, frontApr 8, 2021
General Motors, LLC (GM) is recalling certain 2014-2016 Chevrolet Silverado 1500, 2015-2016 Chevrolet Tahoe, and 2014-2015 GMC Sierra 1500 vehicles that may have received an incorrect replacement tensioner cable assembly as part of a previous recall remedy or a subsequent repair. The flexible steel cable connecting the driver's seat belt to the outboard side of the seat may be repeatedly bent over the seat side shield as the driver enters and exits the vehicle causing the cable to fatigue and separate.
A broken pretensioner cable reduces the effectiveness of the driver's seat belt, increasing the risk of injury.
GM will notify owners, and dealers will replace the driver seat belt lap pretensioner, free of charge. The recall began on May 5, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020, and GMC customer service at 1-800-462-8782. GM's number for this recall is N212330040.
Campaign 21V245000 on NHTSA.gov
Air bags, side/window, curtain, inflatorNov 25, 2020
General Motors LLC (GM) is recalling certain 2015-2016 GMC Sierra 1500 and Chevrolet Silverado 1500 and 2015 GMC Sierra 2500 and 3500, and Chevrolet Silverado 2500 and 3500 trucks. The roof-rail air bag (RRAB) inflator end cap may detach from the inflator.
If the end cap separates from the inflator, the compressed gas will escape and the end cap can be propelled into the vehicle, increasing the risk of injury or a crash.
GM will notify owners, and dealers will replace the RRAB modules on the left and/or right side, free of charge. Interim owner notification letters were mailed on December 22, 2020. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. Note: GM filed a new recall, number 21V-504 that supersedes this recall. All vehicles previously recalled under 20V-736 will now be repaired under the new recall number 21V-504. GM's numbers for this recall are N202309680, N202309681, and N202309682.
Campaign 20V736000 on NHTSA.gov
Service brakes, hydraulic, antilock/traction control/electronic limited slip, wheel speed sensor/tone ringOct 24, 2019
General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.
Unintended activation of the driveline-protection system will cause unintended braking on the wheel on the opposite side of the failed sensor, causing the vehicle to pull to one side unexpectedly, increasing the risk of a crash.
GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192261050.
Campaign 19V761000 on NHTSA.gov
Service brakes, hydraulic, power assist, vacuumSep 6, 2019
General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles. The amount of vacuum created by the vacuum pump may decrease over time.
As the vacuum level drops, the brake assist decreases, increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the risk of a crash.
GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began October 8, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192268490.
Campaign 19V645000 on NHTSA.gov
Service brakes, hydraulic, pedals and linkagesAug 30, 2018
General Motors LLC (GM) is recalling certain 2015-2016 Chevrolet Silverado 2500, 3500, 1500 Crew Cab Special Service, Tahoe Police Pursuit/Special Service, GMC Sierra 2500, and 3500 vehicles. The brake pedal pivot nut may loosen, causing the brake pedal to be loose or inoperative.
If the brake pedal becomes loose or inoperative, the driver may be unable to stop the vehicle by using the brake pedal. Additionally, a loose pedal may also interfere with the accelerator pedal. Either condition may increase the risk of a crash.
GM will notify owners, and dealers will add adhesive to the nut and reinstall the nut with increased tightness, free of charge. The recall began October 3, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18278. Note: The vehicles in this recall need this additional remedy despite being covered by recall 16V069 for brake pedal loosening.
Campaign 18V578000 on NHTSA.gov
Seat belts, frontMay 3, 2018
General Motors LLC (GM) is recalling certain 2015-2016 Chevrolet Silverado 1500 and Tahoe Police Pursuit and Special-Service vehicles. The flexible steel cable connecting the driver's seat belt to the outboard side of the seat may be repeatedly bent over the seat side shield as the driver enters and exits the vehicle causing the cable to fatigue and separate.
If the pretensioner cable becomes fatigued or breaks, the driver may not be properly restrained in the event of a crash, increasing their risk of injury.
GM will notify owners, and dealers will replace the pretensioner cable and seat side-shield, free of charge. The recall began June 19, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 18156.
Campaign 18V291000 on NHTSA.gov
Air bags, frontalJul 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.
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.
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.
Campaign 17V437000 on NHTSA.gov
Air bags, frontalSep 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.
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.
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.
Campaign 16V651000 on NHTSA.gov
Suspension, front, control armDo not drive until repairedApr 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.
Inadequate welds may allow the control arm to separate from the bushing, compromising steering and increasing the risk of a crash.
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.
Campaign 16V256000 on NHTSA.gov
Service brakes, hydraulic, pedals and linkagesFeb 5, 2016
General Motors LLC (GM) is recalling certain model year 2015-2016 Chevrolet Silverado 1500, 2500, and 3500 heavy duty trucks manufactured October 1, 2013, to February 1, 2016, 2015-2016 Chevrolet Tahoe Police Pursuit Vehicles (PPV) manufactured March 1, 2014, to February 1, 2016, and 2015-2016 GMC Sierra 2500 and 3500 heavy duty trucks manufactured October 29, 2013, to February 1, 2016. On the affected vehicles, the brake pedal pivot nut may loosen, causing the brake pedal to be loose or inoperative.
If the brake pedal becomes loose or inoperative, the driver may be unable to stop the vehicle by using the brake pedal. Additionally, a loose pedal may also interfere with the accelerator pedal. Either condition may increase the risk of a crash.
GM will notify owners, and dealers will add adhesive to the brake pedal pivot nut and reinstall with an increased torque, free of charge. The recall began on March 14, 2016. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is 20760.
Campaign 16V069000 on NHTSA.gov
Representative owner complaints: service brakes
265 reports, newest first. Show all
Electrical system, Other or unspecified, Service brakes, Jul 13, 2026, crash
Vehicle suffered a failure cascade of the brake booster vacuum pump system. During a low-speed bumper collision on July 4 and a boat ramp slide, the pedal triggered abnormal ABS-like pulsing as the computer tried to hydraulically compensate for dropping vacuum pressure. This resulted in truck front bumper damage and boat trailer fender damage. On July 10, total failure occurred in a drive-thru, rendering the pedal rock-hard and sopping mear impossible. All marked parts and logs are available for inspection. Onboard diagnostic data reveals the electronic brake control module has driven continuously without a master clear for 22,665 miles, locking the last system initialization to 78,468 miles. This continuous data loop proves code C0299-00 was actively visible in the history log during the subsequent dealer service visits. Instead of performing the hardware pump remedy under Recall N192268490 (NHTSA 19V650). At the Jan 24 dealer visit (78,482 mi), dealer applied a software update and charged out-of-pocket fees to clear symptoms. They also ignored subsequent communication regarding the billing discrepancy. Technicians completely neglected the history logs despite explicit complaints regarding low-speed ABS sensations, trailer brake messages, park assist, and brake assist warnings. The 2026 dealers (and 2024) falsified multipoint inspections stating brakes required NO service until after winter. Jan '26 dealer delayed further diagnostics until June '26. May '26 dealer ignored texts regarding a crooked steering wheel and unstable tracking after alignment service. The truck was intentionally misdiagnosed as functional to avoid the warranty period repair. This unaddressed mechanical failure caused a destructive system cascade requiring replacement of the vacuum pump, oil-contaminated vacuum lines lines, oil-saturated booster, master cylinder, glazed pads, warped rotors, fluid flush, tires from module drag, alongside the resulting bumper and trailer property damage.
Service brakes, May 7, 2026
Brake assist activates for no apparent reason
Service brakes, Hydraulic, Mar 20, 2026
The contact owns a 2016 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the brake pedal became inoperable. There was no warning light illuminated. The contact stated that the brake pedal failed to function properly and felt spongy while attempting to depress the brake pedal. The contact stated that the vehicle had previously received a brake system software update under an unknown recall, which was completed by the dealer. The vehicle was taken back to the dealer; however, the vehicle was not diagnosed or repaired. The contact was informed that the brake system software update might be performed another time. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 175,446.
Service brakes, Hydraulic, Power train, Engine, Dec 9, 2025
The contact owns a 2016 Chevrolet Silverado 1500. The contact stated that while starting the vehicle, there was a loud rattling sound coming from the engine compartment, with the check engine warning light illuminated. The contact stated that while driving at an undisclosed speed, the vehicle jerked unexpectedly, with the check engine warning light illuminated. Additionally, the contact stated that while driving at an undisclosed speed, the brake pedal became inoperable. The contact reported that the brake pedal was depressed and traveled to the floorboard, and the ABS system vibrated following the brake pedal failure. No warning lights were illuminated for the brake failure. The vehicle was taken to the dealer, but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 139,000.
Service brakes, Oct 16, 2025, crash
I was pulling up behind a vehicle that was entering the highway when I noticed that the driver had to yield to oncoming traffic and did not continue driving. I applied my brakes, but the vehicle did not come to a complete stop, and as a result, I struck the vehicle in front of me. My safety was put at risk, as this could have resulted in a major accident. Additionally, my car insurance premiums increased because of this incident. I was never informed about the recall, nor did I receive any phone calls or mail notifications regarding it. I only became aware of the recall recently after seeing posts on social media, which prompted me to contact my dealership. Upon doing so, I was advised that my vehicle does in fact have an active recall. I don't have any warning lamps or anything advising me of this issue.
Service brakes, Jul 28, 2025
For the last month or so, occasionally when I am going anywhere around 30-60 and I press the brakes, the vehicle will lose power for a few seconds and Stabilitrak is activated. It has locked up the brakes twice in the last 2 weeks when I was parking and could have caused an accident and if it happens when I am driving, I worry that it will cause an accident. I did some research and saw that there is a recall on my year and model. The symptoms it describes are exactly what my truck is doing but when I put in my VIN, it does not show the recall on my truck.
Service brakes, Jul 15, 2025, crash
There is a recall (N182202780) for certain models of gm apparently, but my truck does not fall under the recall though it is the same exact problem with the brake vacuum. When pumping my brake pedal, my brakes become almost non responsive, causing me to back into my secondary vehicle.
Service brakes, Jun 15, 2025
We had a auto shop do work and left are breaks lose And they do not tighten bolts both break calibers were lose and according to the lawyer we spoke with they do not have a business licenses Triad Transmission & Auto Repair 244 NC-22, Ramseur, NC 27316 Junior akins and John kearns
Service brakes, May 12, 2025
Vacuum pump intermittent failure. Not always but during periods of traffic the brakes get stiff and I have a service brake assist notification come on. Then it goes away and all braking is functional and fine
Service brakes, May 9, 2025
ABS system and trailer brakes lights on dashboard come on and until the truck is off and sits for awhile the abs will start working again. Have had several shops look at it and have heard several different things. Started with the cheaper side of things and still no luck for a solution.
Service brakes, Engine, Mar 2, 2025
The 2016 silverado LTZ 5.3L flex fuel lifters went out at 83k miles. I was left standed and had to be towed. I have researched that this is a known GM issue with the 5.3L motors, but I was told because I was outside the warranty that I had to pay the $8000 repair bill for a new motor. This is one a GM issue and a safety issue because I had sudden no power while I was driving and with no warning. The second issue is that the brakes have a serious shake and vibration that the dealership told be they were fine, but it is very hard to stop the vehicle with a tremendous about of force I had to place on the brake peddle. The life of this vehicle has had all services done at Jim Mckay Chevrolet in Fairfax VA. I could not afford the repair and unfortunately I had to trade in the truck and buy a new truck with large monthly payments.
Service brakes, Feb 18, 2025
While tapping brakes to park in tight spaces or inching up in a drive thru, the brake pedal shudders and gets stiff. It's extremely hard to stop the truck.
Service brakes, Hydraulic, Oct 28, 2024
The contact owns a 2016 Chevrolet Silverado 1500. The contact received notification of NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic) however, the part to do the repair was unavailable. The contact stated that the vehicle was taken to the dealer and remained at the dealer for several days. The contact was informed that the recall could not be completed. The contact was informed that several repairs needed to be completed prior to the recall repair being performed. The contact stated that the suggested repairs were completed; however, the contact was informed that the recall repair could not be completed. The contact stated that no explanation was provided. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue but provided no assistance. The contact had not experienced a failure. Parts distribution disconnect.
Service brakes, Oct 11, 2024
it is available and the brakes and steering is very stiff my safety no brakes no it hasnt been serviced at a dealership no inspections by dealership they appeared all at once on 10/11/24 no warning lamps
Steering, Service brakes, Hydraulic, Service brakes, Oct 11, 2024
The contact owns a 2016 Chevrolet Silverado 1500. The contact stated while driving 45 MPH, the steering and brake systems warning lights were illuminated. The vehicle was taken to an independent mechanic, where the warning lights were cleared; however, the failure recurred. The dealer was not notified of the failure. The vehicle was not diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 19V761000 (Service Brakes, Hydraulic, Service Brakes, Electronic Stability Control (ESC). The manufacturer was notified of the failure and informed the contact that the VIN was not included in the recall. The failure mileage was approximately 138,000.
Electrical system, Service brakes, Sep 17, 2024
I was driving my 2016 silverado high country 1500 with my travel trailer when the brakes stopped working making it extremely difficult to stop at a traffic light. Dashboard says service trailer brake system. I checked fuses and connections and turn truck on and off and issue is unresolved.
Service brakes, Sep 2, 2024
Abs stabalink light come on and off, shaking of wheel when applying brakes, changed rotors last year thought that was problem had a little brakes pedal shake.
Structure, Other or unspecified, Service brakes, Jul 21, 2024
Unknown. There is times when parking my truck. I press on the brake paddle and it sound and feels like my truck jerks at first before it brakes. This has been going on for almost the 8 years I’ve own the truck. Also I have only owned the truck for 8 years and my paint is already peeling off. It doesn’t have anything to do with the brakes. I just had my truck serviced the brakes and drums. It still does it.
Service brakes, Jun 1, 2024
I have found that when pressing my brake pedal, it gets very very hard and the truck doesn’t want to stop unless I’m practically standing on the brake pedal. My mechanic has been through the entire system and believes the issue stems from a faulty Vacuum pump. This is apparently a standing recall for my 2016 Silverado but when I supply my vin number it says that I have no unrepaired recalls. At no point has Chevrolet ever notified me that this recall needed to be completed. But my problem is exactly the same as the problems noted on the recall
Steering, Service brakes, Apr 23, 2024
When turning at low speeds the steering locks up, stabilitrack warning lights come on, entire dash and information center starts blinking then vehicle chutes down causing total loss of control.
Service brakes, Feb 12, 2024
Brake pedal hard to push down. Almost drove through shop door, going slow. Heavy equipment and cdl class A driver over 40 years. Fluid is full, brake pads and related items are correct. Shut engine off waited few minutes, seemed ok. It did it again immediately, hard two other drivers try with similar results. Odd noise coming from under hood when pedal is applied. No leaks observed or detected. Pedal is solid near top no fade at all.
Service brakes, Jan 30, 2024
The failing system is the hydraulic brake system. The brakes are failing in my vehicle causing it hard to stop, and having to press extremely hard on the brake for extended periods of time in order to properly stop. As I first push on the brakes I hear a squeak. Yes my vehicle is available for inspection any time. My safety as well as my four daughters safety has been at risk of a crash due to the hardness of trying to break or the vehicle not coming to a stop in time. Yes the problem has been confirmed by a local mechanic. There have no been any inspections in regards to manufacture, police officers, etc. My warning light and another light have previously came on and will later go off, it does not stay on continuously.
Service brakes, Forward collision avoidance, Jan 18, 2024
While driving my truck I was in line picking up my kids from school when pulling up close to the car infront of me my brakes got extremely hard and the truck kept slowly moving forward so I pressed harder to make sure I wouldn't accidentally hit the car. I just now saw a recall on the vacuum pump which in assuming is my issue with the harding of the brakes. I have not took it any where to be investigated yet
Steering, Electrical system, Service brakes, Dec 30, 2023
1. What component or system failed or malfunctioned, and is it available for inspection upon request? Response: Slowing down to make a left turn, Steering locked up, Electrical devices flashing, Service Stabilitrak Indicator, Chimming, Engine shut off then turned back on 2. How was your safety or the safety of others put at risk? Response: YES truck shut off when turning across traffic 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Response: Has the problem been reproduced -Yes Response: confirmed by a dealer or independent service center -No 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Response: No 5: Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Response: Yes, chimming, then Service Stabilitrak indicator, then steering wheel lock up, engine cut out
Service brakes, Nov 28, 2023
ok the problem is with the brakes, there were four incidents when the brake pedal gets hard and its hard to stop the truck. all four incidents happened backing into my driveway after stepping on the brake pedal 4 to 5 times it would hard. and it would be difficult to stop. The problem is with the brake booster vacuum pump. There was a recall for that exact problem on 2014-2018 silverados. I called the dealership, they told me my VIN # was not one of the listed ones for the recall. the vehicle is available for inspection if requested. the vehicle has not been inspected or confirmed by a dealer. there were no warnings lamps or messagesl. Im certain its the brake booster vacuun pump.