2020 Chevrolet Silverado 1500 Technical Service Bulletins

1,554 technical service bulletins (TSBs) are on record for the 2020 Chevrolet Silverado 1500. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10179654Aug 26, 2020Engine cooling, Fuel system. This preliminary information communicates the end of the part restriction for the diesel engine fuel system components
• 10179652Aug 26, 2020Fuel system, Equipment, Engine cooling. This Preliminary information communicates the part restriction for the diesel engine air delivery and exhaust system components
• 10179649Aug 24, 2020Transmission and drivetrain, Steering. This Preliminary information communicates that engineering has developed a repair for a chirp noise associated with the front axle assembly.
• 10180321Aug 21, 2020Engine cooling. This informational bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough.
• 10179647Aug 21, 2020Equipment. This Preliminary information communicates an issue with poor a/c performance and to replace the a/c condenser.
• 10179646Aug 21, 2020Engine cooling. This Preliminary information communicates A vehicle may have a concern of DTC P050D setting along with a P0300 after a cold start up. White smoke and/or coolant odor may come from exhaust for an extended period of time at cold start as well. Cause Coolant getting into the cylinders, and provides direction for the repair.
• 10179644Aug 20, 2020Engine, Electrical system. This Preliminary information communicates and issue with the SES MIL on setting DTC's P0201/P0202/P0203/P0204/P0205/P0206/P0216 and instructing dealership to inspect the engine wiring harness for damage.
• 10179642Aug 20, 2020Engine, Electrical system, Fuel system. This Preliminary information communicates A vehicle may have a concern of running poor and stalling. No trouble codes may be set referencing this condition. Fuel trims around -20% may be observed on both banks. Engine oil level will be found over full and have a fuel odor. It will be found that the Engine oil is diluted with fuel. Small gas engines (SGE) May only have the engine oil level over full and have a fuel…
• 10180311Aug 17, 2020Back-over prevention (rear camera). This informational bulletin provides information for dealers/technicians on Rear View Camera Display Bright At Night.
• 10179637Aug 17, 2020Engine, Equipment. This Preliminary information communicates an issue with a noise caused by the engine harness rubbing on the floor pan. Dealers are to reposition the harness to fix the noise.
• 10180697Aug 14, 2020Equipment. This Warranty Administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.
• 10180317Aug 14, 2020Tires. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10180315Aug 12, 2020Electrical system. This bulletin provides information on the Transport Mode On Message Being Displayed in the Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message ON and OFF.
• 10179636Aug 12, 2020Transmission and drivetrain, Equipment. This Preliminary information communicates that engineering has developed a repair for a chirp noise associated with the front axle assembly.
• 10179635Aug 12, 2020Engine cooling. This Preliminary information communicates the part restriction for the diesel engine air delivery and exhaust system components
• 10180705Aug 10, 2020Visibility (wipers, defrost, mirrors). This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a noise coming from the window regulator area.
• 10180293Aug 10, 2020Transmission and drivetrain. This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed.
• 10179626Aug 6, 2020Electrical system, Forward collision avoidance, Equipment. This Preliminary information communicates an issue with a SES MIL and the Brake System Control Module setting false DTC's during shut down. GM Engineering released updated cals for the BSCM to repair the issue.
• 10179625Aug 6, 2020Engine, Equipment. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
• 10180299Aug 5, 2020Equipment. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
• 10180702Aug 4, 2020Electrical system. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards a start/stop event or during a normal start using the push button on the dash the vehicle would not crank causing it to not start.
• 10180301Aug 4, 2020Visibility (wipers, defrost, mirrors). This technical bulletin provides repair information to correct a customer concern of water found in rear interior of cab due to water leak at rear sliding window.
• 10178964Jul 29, 2020Steering. This technical bulletin provides repair information to correct a customer concern of Intermittent "Service Steering Column Lock" message displayed with U0155 Set.
• 10178395Jul 29, 2020Electrical system. This Preliminary information communicates to technicians a possible cause and correction for a P026A
• 10178394Jul 29, 2020Electrical system. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
• 10178390Jul 29, 2020Electrical system. This Preliminary information communicates an issue with the engine wiring harness shorting on the ecm mounting bracket and provides repair instructions.
• 10178949Jul 28, 2020Transmission and drivetrain, Engine. This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.
• 10178959Jul 22, 2020Equipment, Body and structure. This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
• 10178378Jul 22, 2020Transmission and drivetrain, Equipment. This Preliminary information communicates that engineering has developed a repair for a chirp noise associated with the front axle assembly.
• 10179529Jul 15, 2020Electrical system. This engineering information (EI) revision ends the need for information from the field regarding Check Trailer Message on Drivers Information Center (DIC) and/or F74, F82 Fuses Blown.
• 10179407Jul 15, 2020Equipment, Electrical system. This informational bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
• 10179408Jul 10, 2020Body and structure, Equipment. This bulletin provides information to dealers regarding transportation damage repair claim submission requirements.
• 10178367Jul 10, 2020Engine, Transmission and drivetrain. 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.
• 10178366Jul 9, 2020Electrical system, Equipment. 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.
• 10179531Jul 8, 2020Electrical system. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Malfunction Indicator Lamp (MIL) Illuminated and/or functional failures of the Airflow Shutter.
• 10179530Jul 8, 2020Engine cooling, Engine. 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.
• 10178975Jul 8, 2020Body and structure. This technical bulletin provides repair information to correct a customer concern of the Tri-Fold Tonneau paint finish fading or discolored.
• 10179532Jul 1, 2020Equipment. This engineering information (EI) ends the needs for information from the field regarding SD Code messages displayed on the Radio Screen and/or Instrument Cluster - Navigation System Malfunction.
• 10178360Jun 30, 2020Electrical system, Engine. This Preliminary information communicates and issue with the SES MIL on setting DTC's P0201/P0202/P0203/P0204/P0205/P0206/P0216 and instructing dealership to inspect the engine wiring harness for damage.
• 10178345Jun 25, 2020Transmission and drivetrain. 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.
• 10178282Jun 25, 2020Electrical system. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
• 10207730Jun 24, 2020Equipment. Customer Satisfaction Program. As part of equipment recall N192285070, GM instructed dealers to remove recalled tri-fold tonneau covers on certain vehicles prior to delivery to the customer. GM is conducting this customer satisfaction field action to provide these customers with the improved tonneau cover system for their vehicle. Dealers will replace the tonneau rails and clamps and add a tether to prevent the…
• 10178268Jun 24, 2020Engine, Electrical system. This informational bulletin provides information for dealers/technicians on Engine Control Module Calibration for T1 L3B Engine with DTC P26BB Set.
• 10178288Jun 23, 2020Transmission and drivetrain. This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
• 10178337Jun 22, 2020Engine cooling. This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarly on hold while PIE0572 is active. Will review for deletion or update when PIE0572 ends.
• 10178299Jun 22, 2020Equipment. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a on a no restart after auto-stop event and/or, no crank.
• 10178327Jun 16, 2020Equipment, Brakes. This Preliminary information communicates that after installation of GM Accessory Performance Brake Pads it may be noticed the EBCM has set DTC(s) C116C 05 and/or C116B 05. There will be NO warning lights or messages displayed on the IPC/DIC. The GM Accessory Performance Brake Pads do not utilize the brake pad wear sensor. None. These DTC(s) do not cause any warning lights or messages to be displayed in the IPC/DIC.
• 10178293Jun 15, 2020Equipment. This warranty administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.
• 10178326Jun 13, 2020Engine cooling. This Preliminary information communicates additional diagnostic tips when diagnosing engine oil leaks on these vehicles.
• 10178322Jun 12, 2020Equipment, Electrical system. This Preliminary information communicates multiple vehicle issues caused by an aftermarket device and it gives dealership information where to inspect for this device.

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