2020 Chevrolet Suburban Technical Service Bulletins

844 technical service bulletins (TSBs) are on record for the 2020 Chevrolet Suburban. 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.

• 10178293Jun 15, 2020Equipment. This warranty administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.
• 10178324Jun 12, 2020Equipment. This Preliminary information communicates an issue with aftermarket USB chargers causing SIR DTC's to set.
• 10178323Jun 12, 2020Equipment, Electrical system, Transmission and drivetrain, Brakes. This Preliminary Information communication provides information to the technician with the steps on diagnosing and repairing vehicles that may have unwanted grade braking, reduced engine power with no Driver Information Center messages ? Brake Pedal Override Feature ?, transmission busy or frequent shifting up or down, and Diagnostic Trouble Codes P057B, P057C, and/or P057D may or may not be set.
• 10178320Jun 11, 2020Engine. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
• 10178309Jun 8, 2020Engine cooling, Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that may have a delayed engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears. This may be due to loose stator support to pump cover bolts causing a leak at the stator support to pump cover gasket. Technician will check for the bolts to be loose.
• 10178308Jun 8, 2020Equipment, Transmission and drivetrain. This Preliminary information communicates to the dealer technician that the torque converters for the 10L80 and 10L90 10 speed transmission are on restriction through the Product Quality Center. Dealers are advised to contact the Product Quality Center if diagnostics has lead to replacement of the transmission torque converter.
• 10178255Jun 8, 2020Equipment, Electrical system. This informational bulletin provides information for dealers/technicians on Head-Up Display (HUD) on Vehicles Model Year 2017 and Newer Having Rotational Feature that Allows for Adjusting of Angle of HUD Image.
• 10178272Jun 4, 2020Equipment. This technical bulletin provides a procedure to replace the radio amplifier antenna if there is a condition of Poor Remote Keyless Entry (RKE) Fob or Passive Unlocking Range due to a internal concerns within the antenna.
• 10178294Jun 3, 2020Electrical system. This engineering informational bulletin is requesting information from the technicians for the following conditions for the cluster.
• 10178303Jun 2, 2020Seats, Electrical system. This Preliminary information communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw.
• 10178291Jun 2, 2020Equipment. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10178271Jun 1, 2020Transmission and drivetrain. This technical bulletin advises the technician to validate the code and reset if found the cause of the customers concern.
• 10176613May 28, 2020Engine cooling. This technical bulletin provides a service procedure to correct a condition of Ticking Noise from the Engine.
• 10176650May 27, 2020Engine. This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold or the vehicle has sat for a few hours.
• 10176647May 27, 2020Electrical system, Equipment. 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.
• 10176332May 27, 2020Equipment. This Preliminary information communicates information on how dealers can contact the supplier for Associated Accessories offered through GM.
• 10176327May 21, 2020Brakes. This Preliminary information communicates the location of the GM Accessory Performance Brake System Rotor Specifications
• 10176649May 20, 2020Electrical system. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
• 10176315May 13, 2020Electrical system. 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…
• 10176607May 8, 2020Equipment, Fuel system, Engine. 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.
• 10176309May 8, 2020Electrical system, Transmission and drivetrain. 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.
• 10176644May 7, 2020Equipment. This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in higher CSi scores.
• 10176646May 6, 2020Equipment, Electrical system. 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.
• 10176302May 6, 2020Engine cooling. 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.
• 10176632May 5, 2020Engine, Fuel system. 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.
• 10175850Apr 29, 2020Equipment, Tires. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10175853Apr 28, 2020Equipment. 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.
• 10174860Apr 27, 2020Engine cooling. This Preliminary information communicates the possibility of dtc P12A6 with the possibility of a crank no start or extended crank concern.
• 10174859Apr 27, 2020Electrical system. This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.
• 10174855Apr 21, 2020Engine cooling. This Preliminary information communicates The vehicle may have an SES lamp with any of the following DTC P06DA, P06DB, P06DC, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/or P2230. Possible crank no start or a stall. Possible wiring jumper harness pintched between the X154 connector bracket and the front engine cover on lower left side of the engine.
• 10174851Apr 20, 2020Body and structure. This Preliminary Information communication advises the technician that the door striker cover will be shipped with the vehicle from the assembly plant. Technician is to make sure the rounded side of the cover is positioned towards the outboard side of the vehicle.
• 10174826Apr 17, 2020Engine cooling. This Preliminary information communicates the possibility of dtc P12A6 with the possibility of a crank no start or extended crank concern.
• 10175855Apr 14, 2020Body and structure, Equipment. This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
• 10174818Apr 14, 2020Electronic stability control. This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed.
• 10175852Apr 3, 2020Equipment. This informational bulletin provides information on interior cleaning products and what is offered to clean the interiors of GM vehicles.
• 10174304Mar 31, 2020Equipment. This warranty administration bulletin explains to the technician that when using wiring repair labor operations, additional information may be needed when submitting Global Warranty transactions when doing wiring repairs.
• 10173728Mar 30, 2020Electrical system, Equipment, Lane departure. This Preliminary information communicates instructions dealer to inspect for a broken or damaged side objector sensor/module bracket if there is a "Side Detection System Unavailable" message displayed at startup.
• 10174302Mar 20, 2020Equipment. This informational bulletin provides information on interior cleaning products and what is offered to clean the interiors of GM vehicles.
• 10173714Mar 20, 2020Electrical system, Brakes. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system…
• 10173713Mar 20, 2020Electrical system, Brakes. This Preliminary Information communication provides information to the technician about vehicles that may have a Service Trailer Brake message in the Driver Information Center. Also the vehicle will have a Diagnostic Trouble Code U0415 set. Technician will fill the master cylinder brake fluid reservoir to the maximum level.
• 10173712Mar 19, 2020Body and structure. This Preliminary Information communication provides information to the technician for a water leak in in the second and third row seating area. Inspect the C-pillar which is the body vertical structure behind the rear passenger door area of the affected side of the vehicle for water intrusion or water marks on the seat belt retractor.
• 10174303Mar 18, 2020Equipment. This warranty administration bulletin provides policy information for courtesy transportation and roadside assistance programs.
• 10174305Mar 17, 2020Engine cooling. This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold or the vehicle has sat for a few hours.
• 10173683Mar 11, 2020Electrical system. This Preliminary information communicates a customer concern of IPC gauges inoperative or fluctuate, No Start, No Crank, SIR Light / Service Airbag Message, Service Suspension Message, Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback, HVAC controls inoperative.
• 10174440Mar 10, 2020Lane departure, Equipment. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Instrument Panel Cluster (IPC) Gages at Zero, Multiple Warning Lights On, No Chimes and/or Turn Single Audio.
• 10174267Mar 10, 2020Body and structure, Wheels, Equipment. This technical bulletin provides repair information to correct a customer concern of hearing a squeak or creak from the right rear of vehicle while driving.
• 10173681Mar 9, 2020Tires. This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction.
• 10173680Mar 9, 2020Suspension. This Preliminary Information communication provides information to the technician with the steps to diagnosis and repair vehicles with various handling, vehicle dynamics concerns, noises from the suspension or underbody, or issues related to damaged suspension components. Before any in-depth diagnostics are performed, be aware that various issues could occur if the vehicle has been modified and inform the customer…
• 10174299Mar 6, 2020Equipment. This informational bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only).
• 10174441Mar 5, 2020Lane departure. This engineering information (EI) is requesting information from the technicians for issues regarding Instrument Panel Cluster (IPC) Gages at Zero, Multiple Warning Lights On, No Chimes and/or Turn Single Audio.

← All problems reported for the 2020 Chevrolet Suburban