2020 Chevrolet Silverado 1500
Problems, recalls and owner-reported issues
Engine is the leading concern among 731 owner complaints filed for this model year. This is the 7th highest complaint count among 19 Silverado 1500 model years with reports.
Of the 2020 reports, 13 involved a crash and 9 involved a fire. 12 people were injured.
What owners report most often
Recalls and investigations
Power train, automatic transmission, control module, softwareFeb 12, 2026
General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to lock up.
Rear wheel lock up increases the risk of a crash.
Dealers will inspect the vehicles and update the transmission control software, free of charge. Owner notification letters were mailed March 6, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252516560. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 12, 2026.
Campaign 26V083000 on NHTSA.gov
Power train, automatic transmission, control module, softwareOct 24, 2024
General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.
Rear wheel lock-up can increase the risk of a crash.
Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.
Campaign 24V797000 on NHTSA.gov
Tires, temporary/emergency spare tireDec 16, 2021
General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire. The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake system (ABS) to not function properly under certain conditions.
An ABS system that does not function properly can increase the risk of a crash.
Dealers will provide a new 17" spare tire and wheel assembly that is compatible with the accessory wheels, free of charge. Dealers will also apply a new spare tire information label, and provide owners with an owner's manual insert clarifying which spare tire to use with the accessory road tires and with the 17" original tires. Owner notification letters were mailed February 7, 2022. Owners may contact GM customer service at 1-800-462-8782 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212346510.
Campaign 21V985000 on NHTSA.gov
TiresFeb 25, 2021
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.
Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.
GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212329050.
Campaign 21V115000 on NHTSA.gov
Seat beltsDec 17, 2020
General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The seat belt brackets may not be secured to the seat frame in the front-row center seating position.
If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.
GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge. The recall began January 26, 2021. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202314670.
Campaign 20V792000 on NHTSA.gov
TiresNov 5, 2020
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.
Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash.
GM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall began December 17, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202319030.
Campaign 20V684000 on NHTSA.gov
Power train, driveline, driveshaftOct 22, 2020
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 and 2020 Chevrolet Silverado 2500 trucks. One of the driveshaft joints may not have been properly welded, causing the driveshaft to separate while the vehicle is moving.
If the driveshaft separates, there may be a loss of propulsion, increasing the risk of crash.
GM will notify owners, and dealers will replace the driveshaft, free of charge. The recall is expected to begin December 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N202314870.
Campaign 20V650000 on NHTSA.gov
Air bags, side/window, curtain, inflatorJul 30, 2020
General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.
GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is N202305380.
Campaign 20V446000 on NHTSA.gov
Service brakes, hydraulic, foundation components, disc, caliperFeb 27, 2020
General Motors LLC (GM) is recalling certain 2020 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. The bolts used to attach the front and/or rear brake calipers may have not been heat treated and may break under load.
Broken caliper bolts can reduce brake performance or interfere with wheel rotation and increase the risk of a crash.
GM will notify owners, and dealers will replace the brake caliper bolts, free of charge. The recall began March 23, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-866-522-9559. GM's number for this recall is N202294420.
Campaign 20V116000 on NHTSA.gov
Electrical system, 12v/24v/48v battery, cablesDec 12, 2019
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator.
An intermittent electrical connection between the B+ battery cable and the alternator could cause the vehicle to stall, increasing the risk of a crash. The intermittent connection could also lead to electrical arcing, which could generate sufficient heat to damage surrounding material, increasing the risk of a fire.
GM will notify owners, and dealers will inspect for the presence of glue or other contamination at the B+ cable attachment to the alternator and clean the connection and reattach the B+ cable connection, as necessary. If arcing has damaged the cable, nut, or alternator, the dealer will replace the damaged components. All services will be performed free of charge. GM issued owners an interim notification on February 4, 2020. GM issued second notice and the recall began March 9, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192273510.
Campaign 19V888000 on NHTSA.gov
Fuel system, gasoline, delivery, fuel pumpNov 21, 2019
General Motors LLC (GM) is recalling certain 2020 Cadillac Escalade, Escalade ESV, Chevrolet Camaro, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The fuel pump may be missing a pressure regulator, allowing for over-pressurization of the fuel system.
Over-pressurization can crack the fuel pump and cause leaks, increasing the risk of a fire in the presence of an ignition source.
GM will notify owners, and dealers will replace the fuel pump, free of charge. The recall began December 18, 2019. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-888-988-7267. GM's number for this recall is N192283991.
Campaign 19V837000 on NHTSA.gov
Seat belts, pretensionerNov 14, 2019
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2020 Silverado 2500, Silverado 3500, Sierra 2500, and Sierra 3500 vehicles equipped with carpet floor covering. When the front seat belt pretensioners deploy, hot gas may vent through an opening in the pretensioner bracket, possibly igniting the carpet.
A vehicle fire could result if materials ignite inside the vehicle.
GM will notify owners, and dealers will close off the opening in the pretensioner bracket, free of charge. The recall began December 13, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192270600.
Campaign 19V814000 on NHTSA.gov
Representative owner complaints: power train
227 reports, newest first. Show all
Power train, Sep 17, 2022
Transmission keeps over heating to the point that a message comes on display “Transmission hot idle engine” have had this same problem before to it to the dealership they installed a temperature bypass on and this problem continues
Power train, Sep 8, 2022
My truck felt like running over rumble strips. At 17500 miles they replaced my torque converter under warranty. Now at 24690 miles they had to replace again, under warranty. With less than 25000 miles it is on it's 3rd torque converter. I fear that transmission is being damaged and feel Chevrolet needs to admit there is a problem. My current dealer calls it a lifetime warranty, with lots of strings, but Chevrolet should protect me.
Power train, Sep 3, 2022
My Silverado 1500 has developed torque converter shudder again over the course of the past few days. My current mileage is around 42,000. This is actually the second time this has happened on my specific vehicle and the current torque converter is actually the second, as I had my other one replaced after being confirmed by a dealer several months ago. I have only managed to drive around 10,000 miles between the replacement of the first part and the start of the second one failing. For information regarding the first failure please use reference ID 11458308. This has not yet been confirmed by a dealer, but I'm scheduled to get this serviced on Tuesday. I am certain that is what this is as this happened so recently. Primarily while driving at highways speeds between 1500 - 2000 RPM my Silverado will continuously surge forward every few seconds with a notable clunking in the rear. While this is happening I will watch my tachometer bounce up and down approximately 300 RPMs constantly, despite the fact cruise is set and this is on flat ground. The problem gets worse while driving uphill and increases the magnitude of the clunking/shaking. Under light throttle acceleration my truck will have a vibration coming from under the vehicle that feels exactly like driving over a rumble strip. This was the sensation that helped the dealer identify this as torque converter shudder the first time. No warning lights were present at time of incident.
Power train, Service brakes, Fuel/propulsion system, Jul 20, 2022
My truck had been randomly misfiring but the dealership couldn’t resolve the issue because the check engine light would go away on the way there. They were able to pull codes showing a misfire taking place and told me to return if it continued. The truck started having misfire issues again periodically fir the next 2 weeks but once the check engine light stayed on I scheduled an appointment. On the way to the appointment to Hidiburg Chevrolet we were on the interstate the cruise control kicked off, the service parking brake indicator, misfire flashing of check engine light, an ESC warning, and the traction control light came on as the truck randomly pulled to the right real quick then it stopped. Once the indicators went off all warning indicators were off and cruise control would not work. The dealership pulled codes and saw every cylinder misfired and that the other issues that took place. They tested everything and could not find the source and said that they had to wait until the indicator stayed on so they could see the issue. I left with no resolution and concern that when the misfiring could damage parts and the computer. I also fear that the issue if someone isn’t aware of vehicles not fixed could lead to severe accidents and potential for death if not fixed.
Power train, Jun 24, 2022
Transmission shuddering and shaking while driving. Once in blue moon service light flashes for less than 1 minute then goes off with no diagnostic codes to show.
Steering, Power train, Service brakes, May 6, 2022
Vehicle had several lights on dashboard and messages, service brake system,engine power reduced, service trailer brake controller, service esc, service power steering. Vehicle lost power steering and brakes were nearly all impossible to push…luckily I was near my house and got home safe, my family or myself could’ve been seriously hurt
Power train, Mar 25, 2022
Vehicle developed a sensation at approximately 28,000 miles similar to driving over a rumble strip. At approximately 32,000 miles this was diagnosed as a failing torque convertor. There are TSBs related to this for the 8 speed transmission, but dealer stated no known TSBs exist for the 6 speed. The truck is currently in the shop getting the torque convertor replaced and should be available for pick-up in the upcoming week. Rumble strip sensation occurred under light throttle acceleration and presented more frequently on an incline. There were occurrences on flat ground, but this was not as common. The vibration occurred most often at highway speeds of around 70 MPH, but also occurred several times in the ranges of 20-30 and 40-50 MPH. Tachometer reading during these occurrences was around 1,500 - 2,000 RPM. Issue was intermittent and would come and go. Most of the time the sensation was mild, but periodically the vibration would be severe enough the driver felt like he had been rear-ended. A separate symptom would occur while going up hills and the tachometer would bounce up and down approximately 300 RPMs with a noticeable surging sensation. When presenting, the vehicle would surge forward every few seconds until the hill had been crested. This only occurred at highway speeds with cruise set and would not present when the rumble strip vibration was present.
Power train, Engine, Mar 10, 2022
I was driving down I27 10 miles south of Lubbock when my 2020 Silverado 1500 3.0 Diesel engine stopped accelerating. I was going 75 miles per hour and the truck just stopped causing trauma for me and my family we were lucky enough to get to the side of the road. I ended up calling gm roadside assistance and they sent a tow truck to pick us and the truck up. The truck wouldn't engage into drive nor reverse. Once towed to the dealership, Gene Messer Chevrolet, in Lubbock, Texas, a service tech mentioned that a ton of the lifters bending push rods are going out on the late 2019, 2020 model silverado due to cheaper lifters added to the vehicles due to Covid shortage supplies. In essence, they wanted to get these models out with no regard to safety of the consumer. I'm not pleased with the craftsmanship GM has lined out on these trucks, this could've ended way worst. They jeopardized my families safety for profits. Right now the truck is still awaiting diagnostics still won't drive nor reverse per dealer service tech. It's just a terrible situation, the truck is new only has 25,500 miles on it, this needs to be recalled.
Power train, Vehicle speed control, Engine, Feb 2, 2022
Upon starting the vehicle for the second time one day, when placing the automatic transmission into 'D' - Drive, it began to roll backwards as if it was in Neutral on a slight decline and the brakes had to be applied to avoid rolling downhill backwards. After attempting to place it back into 'P' - Park and back into 'D' - Drive and attempting to try 'R' Reverse to try to get it to move forward properly, it would not go forward. After several tries and restarting the vehicle completely, it finally attempted to move forward but would only do so at a reduced speed and would not respond to the accelerator pedal beyond a certain amount. After trying again, it appeared to move forward a bit better, but then upon stopping at a stoplight and attempting to pull out for a left turn onto the road, the speed again was reduced and I had to immediately place it into 'R' - Reverse to avoid an accident due to oncoming traffic. Finally I was able to get it to move forward a bit better and was heading directly for the dealership but since the power just was not getting to the wheels (transmission?) I pulled over and shut off the truck for a few minutes. Upon starting the truck again, it seemed to move forward better after that but had the 'check engine light' illuminated. The truck is at the dealership now, they have had it nearly a week and said they will not begin to look at it for another week at least since they only have 2 technicians who can look at it.
Power train, Engine, Oct 12, 2021
Whine sound possible torque converter does not go away. Surging or delay in switching into second gear upon first start up and put in drive.
Power train, Jun 18, 2021
Popping sound and hard shifting during low RPM between low gears.
Suspension, Power train, Wheels, May 9, 2021
MY TRUCK HAS ALREADY HAD A SHIMMY FEEL IN THE TRANSMISSION AROUND 60 MPH IT SHOOK AND WOULD SLIP GEARS. I JUST HAD IT GET WORSE THIS WEEK. I ALSO NOTICED THAT THE FRONT END IS NOT SHAKING REALLY BAD FROM 60-75 MPH ON NEWLY PAVED ROADS. THE TRUCK USED TO DRIVE LIKE A DREAM NOW ITS DRIVING SO ROUGH AND THERE IS SOMETHING GOING ON!
Power train, Apr 28, 2021
THE VEHICLE DOES NOT SHIFT INTO 4WD LOW RANGE. THE VEHICLE HAS BEEN TAKEN TO THE DEALER 4 TIMES TO CORRECT THE ISSUE BUT THE ISSUE STILL OCCURS.
Power train, Electrical system, Engine, Apr 5, 2021
THE ENGINE LIGHT HAS COME ON 3 TIMES WITH A TRUCK WITH ONLY 9000 MILES ON IT I TOOK IT TO THE DEALERSHIP WHO GAVE ME A CODE OF P12A6 THEY TOLD ME CHEVROLET IS AWARE OF THIS PROBLEM BUT HAS NOT COME UP WITH SOLUTION YET OR EVEN WROTE A PROGRAM TO REFLASH THE COMPUTER. NOW I HAVE A PAPER WEIGHT IN MY DRIVEWAY AND BEING THAT I LIVE IN A DUAL TOWN TRYING TO FIND A DEALERSHIP THAT WILL FIX IT AND PROVIDE RENTAL CAR OR TRUCK. THIS DEFECT CAN BE MULTIPLE REASONS WITH THE ENGINE HARNESS WIRES CHAFFING OR TORQUE CONVERTER OR TRANSMISSION PLUS THE WHOLE ELECTRICAL SYSTEM NOT CRANKING OVER THE TRUCK FROM WHAT I WAS TOLD LAST TIME. NOW I'M WAITING TILL 730 TO CALL A DEALERSHIP SEE IF THEY HAVE A ROLL TRUCK TO PICK IT UP AND GET IT TO A DEALERSHIP WHERE THEY CAN TRY TO FIX THIS PROBLEM.
Power train, Apr 4, 2021
2020 SILVERADO 1500 DURAMAX. TORQUE CONVERTER FAILED WITH 6700 MILES ON NEW LEASED VEHICLE. ORIGINALLY BEGAN HAVING TRANSMISSION ISSUES IN NOV 2020 WITH SURGING WHILE STOPPED IN COLD WEATHER. DEALER RESEATED ALL CONNECTIONS. BEGAN TO HAVE LOUD WHINING WHEN SHIFTING. TOOK BACK TO DEALER AND INFORMED IT IS TURBO WHINE. NOT CONVINCED. MARCH 2021 BEGAN SURGING AGAIN. RETURNED TO DEALER AND KEPT FOR WEEK. MECHANIC STATED COULD NOT PRODUCE PROBLEM. AS I DROVE TO THE MAIN STREET AT DEALERSHIP BEGAN SURGING. RETURNED TO SERVICE, MGR GOES WITH ME AND CONFIRMS ISSUES WITH WHINE AND SURGE. BACK IN THE SHOP. THAT WAS 22 MARCH AND AS OF 8 APRIL; TORQUE CONVERTER FAILURE AND ORDERED NEW BELL HOUSING. GOING ON 4 WEEKS WITHOUT TRUCK.
Power train, Electrical system, Exterior lighting, Apr 2, 2021
MY LIGHTS IN THE DASH INSIDE THE TRUCK. GO FROM BRIGHT, TO DARK BLACK ALL THE TIME SINCE APRIL 2020. MY 4 WHEEL DRIVE ENGAGE, WONT WORK. 12/12/2020 IN THE SNOW TRYING TO DRIVE HOME
Power train, Jan 10, 2021
2020 SILVERADO RST 1500 4X4 ALLSTAR WITH 8 SPEED TRANSMISSION. AT 4,000 MILES DEVELOPED A SHUTTER IN TRANSMISSION AND SLIPPING AND HARD SHIFTING MAINLY BETWEEN GEAR 1-2. BAD ENOUGH WHEN YOU START FROM A STOP WHEN IT SHIFTS YOU FALL FORWARD. THE ACCELERATION PUSHES YOU BACK AND THEN IT JUST SLIPS TO NO WHERE TILL IT CATCHES AND GOES. CONTACTED SHOP AND WAS TOLD AT 1ST OIL CHANGED THEY WOULD FLUSH THE FLUID PER THE SERVICE BULLETIN. THIS MADE IT WAY WORSE. SHIFTING IS MORE ROUGH AND SHUDDER IS MORE FREQUENT. TOOK IT BACK FOR THE 2ND TIME AND HAD TO DRIVE WITH A TECH SO THEY COULD EXPERIENCE THE ISSUE. IT IS GOING BACK TO THE SHOP TOMORROW 1/11/2020 WITH ONLY 7,500 MILES WITH HOPES OF A NEW TORQUE CONVERTER. THIS SHOULD BE A RECALL AND RESULT IN A CLASS ACTION. THIS ISSUE IS SO COMMON AND THIS TRUCK IS BRAND NEW. HAD IT IN SHOP WITH 2,000 MILES WITH AN OIL LEAK.
Power train, Dec 16, 2020
TL* THE CONTACT OWNS A 2020 CHEVROLET SILVERADO 1500. THE CONTACT STATED WHILE DRIVING 55 MPH DOWNHILL, THE VEHICLE INDEPENDENTLY SHIFTED INTO NEUTRAL WITH AN UNKNOWN WARNING LIGHT ILLUMINATED. THE CONTACT STATED THAT THE VEHICLE RESUMED NORMAL OPERATION AFTER THE VEHICLE WAS TURNED OFF AND RESTARTED. THE CONTACT STATED THAT THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO YOUNG BUICK GMC (325 OVERLAND AVE, BURLEY, ID 83318) TO BE DIAGNOSED. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE PERSISTED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 21,000. ## VIN PASSED ## CHEVROLET 2020 SILVERADO ##
Power train, Service brakes, Forward collision avoidance, Dec 14, 2020
IN MAY I PURCHASES A 2020 SILVERADO. ON DECEMBER 05TH, 2020. I WAS DRIVING ON THE INTERSTATE HEADING HOME FROM MY SON'S FOOTBALL GAME . THE "SERVICE BRAKE SYSTEM" MESSAGE DISPLAYED ON THE VEHICLE'S DASHBOARD. BRAKING BECAME SLUGGISH AND STIFF. I INITIAL THOUGHT THE BRAKE FLUID HAD HAD LEAKED OUT. THE VEHICLE MAINTAINED POWER TO ALL OTHER SYSTEMS. ONCE HOME I CHECKED THE ENGINE BAY AND BRAKE CALIBERS AND FOUND THEM TO BE INTACT. AT THIS TIME THE VEHICLE HAS 12,400 MILES. AFTER A INITIAL ASSESSMENT, WAS INFORMED THAT IT WAS DETERMINED TO BE A "COMPUTER GLITCH" THAT WAS EFFECTING THE TRANSMISSION AND BRAKE SENSORS. THE BRAKE MODULE WAS REPLACED AND TRANSMISSION "SOFTWARE" WAS UPDATED. THIS WAS COMPLETED ON DECEMBER 09TH, 2020. UPON COMPLETION THE TECHS CONDUCTING A "DRIVE TEST", AT WHICH TIME THE WARNING APPEARED AGAIN. MY VEHICLE REMAINS AT THE SERVICE DEPARTMENT, WHILE THEY "TROUBLESHOOT" THE PROBLEM. DUE TO THE VAGUE RESPONSES BEING PROVIDED BY THE DEALERSHIP SERVICE STAFF AND THE LACK OF AN ESTIMATED TIME LINE FOR THE COMPLETION OF THE REPAIRS. I BELIEVE THERE IS A MUCH LARGER ISSUE THAT THEY DON'T WANT TO REVEAL.
Power train, Dec 9, 2020
IM GETTING A HARD CLUNK SOUND WHEN SHIFTING INTO REVERSE. IT JUST STARTED HAPPENING AND ITS NOT FREQUENT ENOUGH TO TAKE IT IN TO REPLICATE.
Power train, Electrical system, Engine, Dec 2, 2020
WHEN ATTEMPTING TO START FROM A STOP AT AN INTERSECTION WHEN THE AUTO START/STOP FUNCTION HAS STOPPED THE ENGINE, THE VEHICLE WILL FREQUENTLY HESITATE TO START, THEN ONCE STARTED EXHIBITS UNUSUAL ENGINE/TRANSMISSION BEHAVIOR. THIS TRUCK IS NOW ON ITS FIFTH CHECK-ENGINE LIGHT SERVICE FOR IDENTICAL FAILURES OF THE AUTO START/STOP FUNCTION. THE GM ONSTAR DIAGNOSTICS REPORTS INDICATE 2 FAILURE MODES, ONE WITH THE ENGINE/TRANSMISSION AND THE OTHER WITH THE LITHIUM-ION BATTERY. I HAVE SEVERAL CONCERNS. 1, I MAY BE STRANDED AT AN INTERSECTION WITH A VEHICLE THAT WILL NOT RESTART AND/OR HAS STALLED IN THE INTERSECTION AND 2, THE LITHIUM-ION BATTERY WILL FAIL CATASTROPHICALLY LEADING TO A VEHICLE FIRE.
Power train, Engine, Nov 18, 2020
REPETITIVE FAULTS OF THE AUTO START/STOP SYSTEM. I HAVE NOTIFICATIONS ON THREE SEPARATE OCCASIONS WHILE DRIVING THE VEHICLE FROM THE ONSTART DIAGNOSTICS SERVICE OF TWO IDENTICAL FAULTS. ONE, A DEFECT WITH THE ENGINE & TRANSMISSION SYSTEM AND ONE A DEFECT WITH THE LITHIUM-ION BATTERY. TO DATE THERE HAS NOT BEEN AN EFFECTIVE REPAIR. THE LATEST ATTEMPT, REPLACING THE LITHIUM-ION BATTERY, SOMEHOW HAS FORCED THE SYSTEM TO NO LONGER FUNCTION UNDER ANY CONDITION. DRIVING CONDITIONS VARIED EACH TIME.
Power train, Vehicle speed control, Oct 12, 2020
THE TRUCK HAS ~3000 MILES. WHILE DRIVING THE TRUCK AT HIGHWAY SPEED (65 MPH), A WARNING CAME ON THE DASH "ENGINE POWER REDUCED", FOLLOWED BY A CHECK ENGINE LIGHT, AND THEN THERE WAS NO RESPONSE FROM THE THROTTLE/GAS PEDAL. THE ENGINE WAS STILL RUNNING, BUT NO POWER WAS AVAILABLE WHEN PUSHING ON THE GAS PEDAL. LUCKILY, I WAS ABLE TO PULL OFF OF THE HIGHWAY; HOWEVER, IF THIS WOULD HAVE HAPPENED CROSSING TRAFFIC OR ON A BUSY HIGHWAY, THE RESULTS COULD HAVE BEEN FATAL. I WAS SURPRISED AND SHOCKED TO SEE A NEW TRUCK PROVIDE ZERO POWER FROM THE GAS PEDAL. THIS IS A SIGNIFICANT RISK TO CONSUMERS, DRIVERS, AND OTHER CARS ON THE HIGHWAY. WHEN I PUT THE TRUCK ON A CODE READER, I RECEIVED THE CODE P26C0. THE LOCAL DEALERSHIP STATED THAT I AM NOT THE ONLY ONE EXPERIENCING THESE ISSUES WITH THE 3.0 DURAMAX DIESEL.
Power train, Other or unspecified, Oct 7, 2020
CHEVY SILVERADO 1500 - HAS A FEEL LIKE RUNNING OVER RUMBLE STRIPS AND GOES AWAY. OCCURS AT OR BETWEEN 60 AND 65 MPH. IT ISN'T CONTINUOUS AT ALL. DOESN'T DO IT AT LOWER SPEEDS OR HIGHER SPEEDS THAT I CAN FEEL. TRUCK WAS PURCHASED BRAND NEW IN 2020
Power train, Service brakes, Aug 27, 2020
2020 SILVERADO 1500 CUSTOM CREW CAB 4.6L, V6. PURCHASED TRUCK ONAUGUST 10, 2020. TOOK IT TO DEALER ON AUGUST 17, 2020 BECAUSE OF JERKING FORWARD AT LOW SPEED (20-25 MPH) AND REAR BRAKES MAKING A DEEP RUBBING SOUND. OF COURSE, TECHNICIAN SAID THERE WERE NO PROBLEMS (BECAUSE HE COULD NOT DUPLICATE) THE JERKING MOTION. AFTER PICKING UP MY TRUCK, I NOTICED THAT THEY DID NOT EVEN ADDRESS THE BRAKE ISSUE, NOR DID THE SERVICE ADVISOR NOTE IT ON THE FORM.