GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• May 15, 2020•Document ID: 10176318

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  PIT5737A

  Date Added:

  June 15, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an XM service concern of no audio at startup until a channel change and directs to contact XM for direct support.

  Associated Products (11)

  2020 Buick Enclave2020 Buick Encore2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Camaro2020 Chevrolet Silverado2020 Chevrolet Traverse2020 GMC Acadia2020 GMC Sierra
  Associated Documents

  • DownloadMC-10176318-0001.pdf↗
• May 14, 2020•Document ID: 10176814

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  N192282860

  Date Added:

  June 29, 2020

  Manufacturer:

  CADILLAC

  Summary

  Service Update - Certain vehicles may have a condition where the transmission enters a neutral state when the internal range sensor (IRS) fault is active. Dealers are to reprogram the transmission control module.

  Associated Products (5)

  2020 Cadillac CT42020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Savana2020 GMC Sierra
  Associated Documents

  • DownloadMC-10176814-0001.pdf↗
• May 13, 2020•Document ID: 10176316

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5728

  Date Added:

  June 15, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer an issue where a module configuration function is missing from GDS2 scan tool. Dealer is instructed to manually buid the vehicle in GDS2 and perform the function until software update is available.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10176316-0001.pdf↗
• May 13, 2020•Document ID: 10176315

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5729

  Date Added:

  June 15, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates Some customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC P1682 (Ignition 1 Switch Circuit 2) active or stored in history. DTC?s P0101, P0689. P16A7 or P16BC may also be active or stored in history. Additionally, vehicle may have been into the dealer on a prior service visit and had the MAF sensor replaced for DTC P0101.  This condition may be caused by a faulty ignition relay or underhood fuse block terminal concern.

  Associated Products (12)

  2020 Cadillac Escalade2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon XL2019 Cadillac Escalade2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon
  Associated Documents

  • DownloadMC-10176315-0001.pdf↗
• May 13, 2020•Document ID: 10176313

  Service Bulletin/Repair Instructions
  TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

  Mfr Comm. #:

  PIT4506E

  Date Added:

  June 15, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Tire pressures being set to the "Tire and Loading Label" will ensure the safe handling and ride characteristics of the truck and should not be lowered.

  Associated Products (46)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 Chevrolet Suburban2019 GMC Sierra2018 Chevrolet Silverado2018 Chevrolet Suburban2018 GMC Sierra2017 Chevrolet Silverado2017 Chevrolet Suburban2017 GMC Sierra2016 Chevrolet Silverado2016 Chevrolet Suburban2016 GMC Sierra2015 Chevrolet Silverado2015 GMC Sierra2014 Chevrolet Silverado2014 GMC Sierra2013 Chevrolet Silverado2013 Chevrolet Suburban+ 26 more
  Associated Documents

  • DownloadMC-10176313-0001.pdf↗
• May 12, 2020•Document ID: 10176656

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIE0568A

  Date Added:

  June 22, 2020

  Manufacturer:

  GMC

  Summary

  This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Shift to Park Message on Drivers Information Center (DIC) (ONLY On Push Button Ignition), Unable to Remove Key from Ignition Cylinder and/or Difficult to Shift Out of Park.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10176656-0001.pdf↗
• May 12, 2020•Document ID: 10176655

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIE0568

  Date Added:

  June 22, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This engineering information (EI) is requesting information from technicians to perform the checklist provided and contact the engineer listed in regards to Shift to Park Message on Drivers Information Center (DIC) (ONLY On Push Button Ignition), Unable to Remove Key from Ignition Cylinder and/or Difficult to Shift Out of Park.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10176655-0001.pdf↗
• May 11, 2020•Document ID: 10176813

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  N202298330

  Date Added:

  June 29, 2020

  Manufacturer:

  CHEVROLET

  Summary

  Customer Satisfaction Program - Certain 2020 Chevrolet Silverado HD and GMC Sierra HD vehicles were intended to include a high idle feature, (RPO UF3). Equipment not included on the vehicle is required for the ?high idle? feature to function properly. Because the vehicle does not have the required equipment, this feature cannot be activated and will not be available for use. Dealers will issue the customer a reimbursement check.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10176813-0001.pdf↗
• May 8, 2020•Document ID: 10176812

  Service Bulletin/Repair Instructions
  SUSPENSION; WHEELS

  Mfr Comm. #:

  N202294960

  Date Added:

  June 29, 2020

  Manufacturer:

  CHEVROLET

  Summary

  Customer Satisfaction Program - Vehicles may have been built with 3500 series single rear wheel leaf springs. In service, if a single leaf spring were to be replaced, a 2500 series spring could be installed which would cause the vehicle to have mismatching springs. Dealers are to replace with the correct rear leaf springs.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10176812-0001.pdf↗
• May 8, 2020•Document ID: 10176309

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; POWER TRAIN

  Mfr Comm. #:

  PIP5429A

  Date Added:

  June 15, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication advises the technician that the customer may experience a 2-3 slip or flare after the vehicle has been sitting for a period of time. Technician can update the Transmission Control Module if working on a model year 2007. On all other model years dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.

  Associated Products (155)

  2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2020 GMC Yukon XL2019 Chevrolet Colorado2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Canyon2019 GMC Savana2019 GMC Yukon2018 Chevrolet Colorado2018 Chevrolet Express2018 Chevrolet Silverado+ 135 more
  Associated Documents

  • DownloadMC-10176309-0001.pdf↗
• May 8, 2020•Document ID: 10176307

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP5727

  Date Added:

  June 15, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates diagnostic tips on finding root cause of a hoot noise. If the technician confirms the hoot noise is only present while the torque converter clutch is applying the technician should advise the customer that  the noise will diminish over mileage and should dissipate after 3,000 ? 4,000 miles of driving and does not pose a durability concern.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10176307-0001.pdf↗
• May 8, 2020•Document ID: 10176607

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY; ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM

  Mfr Comm. #:

  16NA383

  Date Added:

  June 22, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.

  Associated Products (829)

  2021 Chevrolet Trailblazer2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette2020 Chevrolet Equinox2020 Chevrolet Express+ 809 more
  Associated Documents

  • DownloadMC-10176607-0001.pdf↗
• May 7, 2020•Document ID: 10176652

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIE0563A

  Date Added:

  June 22, 2020

  Manufacturer:

  GMC

  Summary

  This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to oil leaking from the oil pan.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10176652-0001.pdf↗
• May 7, 2020•Document ID: 10176644

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  030089006R

  Date Added:

  June 22, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in higher CSi scores.

  Associated Products (604)

  2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet 35002020 Chevrolet 4500HD2020 Chevrolet 5500HD2020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette+ 584 more
  Associated Documents

  • DownloadMC-10176644-0001.pdf↗
• May 7, 2020•Document ID: 10176306

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5700C

  Date Added:

  June 15, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Technicians are to refer to the information provided in this document to obtain the internal wiring harness part numbers by application.

  Associated Products (56)

  2020 Cadillac CT42020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2019 Cadillac ATS2019 Cadillac CTS2019 Chevrolet Camaro2019 Chevrolet Colorado2019 Chevrolet Corvette2019 Chevrolet Express2019 Chevrolet Silverado2019 GMC Canyon2019 GMC Savana2019 GMC Sierra2018 Cadillac ATS2018 Cadillac CT6+ 36 more
  Associated Documents

  • DownloadMC-10176306-0001.pdf↗
• May 7, 2020•Document ID: 10176304

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIT5713A

  Date Added:

  June 15, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue with the engine wiring harness shorting at the left front cylinder head causing any of the following issues: -  IPC gauges sweeping while driving -  Several IPC warning messages and MIL displayed -  Any combination of the following DTC's: U0073 U0100 U0101 U0121 U0128 U0129 U0131 U0140 U0146 U0422 U2413 P0107 P0117 P0119 P0641 C2A07

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10176304-0001.pdf↗
• May 6, 2020•Document ID: 10176646

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

  Mfr Comm. #:

  060089029S

  Date Added:

  June 22, 2020

  Manufacturer:

  PONTIAC

  Summary

  This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.

  Associated Products (632)

  2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet 35002020 Chevrolet 4500HD2020 Chevrolet 5500HD2020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette+ 612 more
  Associated Documents

  • DownloadMC-10176646-0001.pdf↗
• May 6, 2020•Document ID: 10176302

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5504D

  Date Added:

  June 15, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information and definitions to the technician about vehicles that have fishbite, chuggle, misfire, AFM disturbances or torque converter shudder/vibration concerns. Technician are advised to use PICO software to determine root cause of the concern. If torque converter shudder is confirmed technicians are referred to Torque Converter Diagnosis in SI.

  Associated Products (25)

  2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon XL2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2017 Chevrolet Silverado2017 Chevrolet Suburban2017 Chevrolet Tahoe2017 GMC Sierra2017 GMC Yukon+ 5 more
  Associated Documents

  • DownloadMC-10176302-0001.pdf↗
• May 5, 2020•Document ID: 10176632

  Service Bulletin/Repair Instructions
  ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS

  Mfr Comm. #:

  20NA098

  Date Added:

  June 22, 2020

  Manufacturer:

  CADILLAC

  Summary

  This informational bulletin explains to the tech on how to order a new fuel injector by matching the part number on the part and ordering it from the EPC.

  Associated Products (239)

  2020 Buick Enclave2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet 35002020 Chevrolet 4500HD2020 Chevrolet 5500HD2020 Chevrolet Blazer2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette2020 Chevrolet Equinox2020 Chevrolet Express+ 219 more
  Associated Documents

  • DownloadMC-10176632-0001.pdf↗
• May 5, 2020•Document ID: 10176631

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  20NA096

  Date Added:

  June 22, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information for dealers/technicians on Glow Plug Control Module Update.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10176631-0001.pdf↗