Gmc Sierra 3500 2021

• Recall 256443 [USA]: An unlatched tailgate may open while driving and result in a loss of unsecured cargo, creating a road hazard and increasing the risk of a crash.
  General motors, llc (gm) is recalling certain 2020-2024 chevrolet silverado 2500, 3500, gmc sierra 2500 and 3500 vehicles equipped with power-unlatching tailgates. The tailgate's electronic gate-release switch may short circuit due to water intrusion, which can result in the tailgate inadvertently unlatching while the vehicle is in park.
  owners are advised to check that the tailgate is closed and latched before driving. Dealers will replace the exterior touchpad switch assemblies, free of charge. Owner notification letters are expected to be mailed march 18, 2024. 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 n232426400.
  owners may also contact the national highway traffic safety administration vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to www.Nhtsa.Gov.

  Show Content

• Recall 230733 [USA]: Water in the bpmv may cause an electrical short circuit and increase the risk of fire.
  General motors, llc (gm) is recalling certain 2021-2022 chevrolet silverado 2500, silverado 3500, gmc sierra 2500, and sierra 3500 vehicles with electronic brake control modules (ebcm) replaced during vehicle assembly. The bolts that attach the brake pressure modulator valve (bpmv) assembly may not be properly tightened, which could fail to seal the two sub-assemblies and allow water intrusion.
  owners are advised to park outside and away from other structures until the recall repair is completed. Dealers will replace the bpmv assembly, free of charge. Owner notification letters were mailed on october 20, 2021. 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 n212349181.
  owners may also contact the national highway traffic safety administration vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to www.Nhtsa.Gov.

  Show Content

• Recall 155602 [USA]: If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the risk of injury.
  General motors, llc (gm) is recalling certain 2020 chevrolet bolt ev and 2021 gmc canyon and sierra 1500, 2500 and 3500, yukon, yukon xl, cadillac escalade and escalade esv and chevrolet blazer, camaro, colorado, equinox, silverado 1500, 2500 and 3500, suburban and tahoe vehicles. Incorrect bolts may have been used at one or more fastening locations to secure the seat belts to the vehicle. If an incorrect bolt was used, the seat belt may not be properly attached to the vehicle.
  gm will notify owners, and dealers will replace the suspect bolts, free of charge. The recall began january 29, 2021. Owners may contact gmc customer service at 1-800-462-8785, cadillac customer service at 1-800-458-8006, or chevrolet customer service at 1-800-222-1020. Gm's number for this recall is n202322230.
  owners may also contact the national highway traffic safety administration vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to www.Safercar.Gov.

  Show Content

• Recall 179677 [USA]: 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.
  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.
  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.
  owners may also contact the national highway traffic safety administration vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to www.Safercar.Gov.

  Show Content

• Recall 2021767 [Canada]: Tires
  Issue: this recall affects certain trucks equipped with optional 18", 20", or 22" wheels and tires. The spare tire has a smaller diameter than the tires on the truck. As a result, the antilock brake system (abs) may not work properly on certain road surfaces when the spare tire is installed on a rear wheel position. This could lead to an increase in stopping distance or a loss of control. Safety risk: reduced braking or a loss of control could increase the risk of a crash. Corrective actions: general motors will notify owners by mail and advise you to bring your truck to a dealer to replace the spare tire and wheel. The dealer will also apply a new spare tire information label over the existing tire label. You will be provided an owner's manual insert that says which spare tire should be used with the wheels and tires on your truck.

  Show Content

• Recall 2020645 [Canada]: Seats and restraints
  Issue: on certain vehicles, the seat belts may have been installed with the wrong bolts. As a result, the seat belt may not be properly attached and may not work as designed in a crash. Safety risk: a seat belt that does not work properly could increase the risk of injury in a crash. Corrective actions: general motors will notify owners by mail and instruct you to take your vehicle to a dealer to replace the seat belt bolts, as necessary.

  Show Content

• Recall 2020624 [Canada]: Seats and restraints
  Issue: on certain trucks, the seat belt brackets for the front-row centre seat may not be properly attached to the seat frame. As a result, the seat belt could detach, and may not work as designed in a crash. Safety risk: a seat belt that detaches in a crash could create an increased risk of injury. Corrective actions: general motors will notify owners by mail and instruct you to take your truck to a dealer to inspect the front-row centre seat belt bracket attachments. The dealer will reassemble the brackets correctly, if necessary.

  Show Content

• Recall 2020530 [Canada]: Tires
  Issue: certain vehicles were built with tires that may have been cured too long. As a result, the sidewall could crack or the tread and belts could separate. This could lead to a sudden loss of air pressure and could cause a tire failure. Note: this recall only affects vehicles equipped with certain continental tires, with specific date codes and mold numbers. Safety risk: a tire failure could cause a loss of control and increase the risk of a crash. Corrective actions: general motors will notify owners by mail and instruct you to take your vehicle to a dealer to inspect the tires and replace the ones that have the dot number and production mold number combinations identified by continental.

  Show Content

• Recall 2022160 [Canada]: Accessories
  Issue: this recall is a new notification for owners that purchased a soft or hard tri-fold tonneau cover from a general motors dealer. On certain trucks, the bed-cover could come loose while driving and detach from the truck. This problem affects soft and hard tri-fold tonneau covers that were sold as an accessory by general motors dealers. Note: this recall is related to transport canada recalls 2019-494 and 2020-165. If your truck was previously repaired under either of those recalls, it does not require further repair under the new recall. Safety risk: a tonneau cover that separates from a moving vehicle could create a hazard for other drivers and nearby people. Corrective actions: general motors will notify owners by mail and instruct you to take your truck to a dealer to perform the recall repairs, including adding a tether to prevent the tonneau cover from detaching. Note: until the recall repairs are completed, you can prevent the chance of the tonneau cover detaching by removing it from your truck and storing it.

  Show Content

To ensure accuracy and for your safety, it is recommended to do a free VIN recall check here or here [USA] - UK - Canada.

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

• Air bag malfunction investigation # PE21010

  The office of defects investigation (odi) has received fifteen consumer complaints on alleged air bag system malfunctions on certain general motors (gm) vehicles. Nine of the consumer complaints allege the illumination of an air bag malfunction indicator (mil). Six crash incidents have significant frontal collision damage where driver frontal air bags failed to deploy. Additionally, all the complaints received by odi involve either gm vehicles (model years 2020 and 2021 silverado, sierra, tahoe, suburban, yukon, yukon xl, escalade, and escalade esv) covered by gm technical service bulletin (tsb) 21-na-005 or ct4, ct5, and xt4 vehicles. The tsb, issued in march 2021, addresses air bag mil illumination accompanied by diagnostic trouble codes B0001-1b or B0012-0d.It also cites rust particles in the connection terminal interface of the driver air bag inflator as the cause of the air bag mil illumination.Illumination of the air bag mil under these circumstances may result in a non-deployment of the driver airbag during a frontal collision and increased risk of injury to the driver.Odi is opening this preliminary investigation to determine the scope and severity of the potential problem and to fully assess the potential safety-related issues.The odi reports cited above are available for review at nhtsa.Gov under the following identification numbers: 11339175, 11343883, 11360339, 11361893, 11362218, 11362839, 11363479, 11363644, 11374129, 11376429, 11384282, 11385267, 11385428, 11390093, 11395340.
  

  Show Content

• Air bag malfunction investigation # PE21010

  On april 9, 2021, the office of defects investigations (odi) opened pe21-010 to investigate instances of air bag malfunction indicator light (mil) illumination and potential for frontal air bag non-deployment in several vehicles manufactured by general motors (gm). The vehicles included model year (my) 2020 through 2021 ct4 and ct5 passenger cars, sierra and silverado trucks (1500/2500/3500 models), xt4 and my 2021 escalade, suburban, tahoe, yukon suvs.Technical service bulletin (tsb) 21-na-005, issued in march 2021, addresses air bag mil illumination with diagnostic trouble codes (dtcs) B0001-1b or B0012-0d. It cites rust particles in the connection terminal interface of the driver air bag inflator housing as the cause of the air bag mil illumination. Illumination of the air bag mil under these circumstances may result in a non-deployment of the frontal driver air bag during a frontal collision and increased risk of injury to the driver.Gm stated a correlation exists between production delays due to the pandemic shutdown and premature corrosion initiation on the surface of the air bag inflator housing, which, in some cases, caused rust development during a seven (7) month period of vehicle production. In the rare instance when a rust particle dislodges from the driver air bag inflator housing and enters the air bag connector prior to assembly, an intermittent resistance spike at the air bag connector may result. The condition generates excessive resistance in the air bag electrical system when the steering wheel horn cover is manipulated or the steering wheel is turned. This excessive resistance is momentary. A crash commanding air bag deployment would need to occur exactly when the momentary excessive resistance occurs. Thus, there is a very low likelihood the hazard will present a risk during a crash of sufficient severity to warrant a commanded deployment. This failure mechanism occurs early in life and results in an air bag mil illumination that corresponds to a dtc warning the driver that the vehicle requires service. The vehicles air bag remains functional while the mil is illuminated, and the dtc is present.Once the connection of the driver air bag module to the clockspring is made at the plant, or at the dealership for service, there is no longer an opportunity for rust migration into the connection point. The connector is sealed and has gold terminals, eliminating the expectation of fretting corrosion. All subject vehicles passed standard corrosion validation testing for extensive corrosion with no issue of air bag non-deployment.There is a low rate of occurrence: 1.41 incidents per thousand vehicles (iptv) for all related occurrences, and 0.04 iptv for occurrences with a mention of visible rust and/or corrosion on the air bag inflator housing. The average occurrence mileage for the subject vehicles is approximately 2,100. Every occurrence related to the alleged defect experienced an air bag mil illumination and there are no verified allegations of air bag non-deployment within all data sources.To date, there have been no reported fires, crashes, injuries, or fatalities related to this issue. In view of the low rate, and the nature of early-life failure, the high detectability of failures, and low potential hazard to drivers, this preliminary evaluation (pe) is closed. The closing of this investigation does not constitute a finding by nhtsa that a safety-related defect does not exist. The agency reserves the right to take additional action if warranted by new circumstances.Review the odi reports cited above at nhtsa.Gov under the following identification numbers: 11537927, 11528888, 11525020, 11521401, 11506057, 11493107, 11486767, 11441525, 11433146, 11425658, 11423440, 11385267, 11376429, 11373466, 11366995.
  

  Show Content

Trailer brake wiring connection continually disconnectsthen reconnects some time later. Some periods of up to 10 minutes without having trailer braking power. Major safety issue when toeing fifth wheel trailer. We lost brakes going down steep grades. Gmc is aware of issue, but has not provided a solution. Vehicle has been yo service shop with no resolution. Case has been opened with gmc.

Common OBD-II Error Codes

• B2B0D [3] B2B0D
• B2B0E [3] B2B0E
• P20BB [1] Reductant Heater "A" Control Circuit Low
• P20C3 [1] Reductant Heater "C" Control Circuit Low
• P0442 [3] Evaporative Emission Control System Leak Detected (small leak)
• P0446 [2] Evaporative Emission Control System Vent Control Circuit Malfunction
• P0449 [2] Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
• P0455 [3] Evaporative Emission Control System Leak Detected (gross leak)
• P2463 [3] Diesel Particulate Filter Restriction - Soot Accumulation
• B0001 [4] Driver Frontal Stage 1 Deployment Control (Subfault)
• B101D [2] Electronic Control Unit Hardware Internal Malfunction
• B101E [2] Electronic Control Unit Software
• B395A [2] B395A
• B395B [2] B395B
• B395C [2] B395C
• P050D [2] Cold Start Rough Idle
• P0300 [3] Random/Multiple Cylinder Misfire Detected
• P0308 [2] Cylinder 8 Misfire Detected
• C119E [1] C119E
• C15AC [1] C15AC
• P12A6 [5] P12A6
• P06DD [1] Engine oil pressure control – circuit performance problem
• C118D [1] C118D
• C119B [1] C119B
• C119C [1] C119C
• P10D9 [2] P10D9
• P10F3 [2] P10F3
• P143C [2] P143C
• C056E [1] Electronic Control Unit Software
• C056D [1] Electronic Control Unit Hardware
• P11D5 [1] P11D5
• P5753 [1] P5753
• B0012 [2] Passenger Frontal Stage 3 Deployment Control (Subfault)