2020 GMC Sierra 2500 Technical Service Bulletins

1,392 technical service bulletins (TSBs) are on record for the 2020 GMC Sierra 2500. 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.

• 10183779Oct 21, 2020Fuel system. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
• 10183162Oct 20, 2020Fuel system, Engine cooling. This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part.
• 10182559Oct 20, 2020Electrical system. This Preliminary information communicates to the technition instructions to replace the particulate matter sensor for a P1488 and to use the special labor operation for tracking purposes.
• 10183155Oct 19, 2020Fuel system, Other or unknown, Engine cooling. This informational bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information.
• 10183150Oct 16, 2020Engine cooling, Equipment. This informational bulletin advises the technician of how the Soot information has changed from grams to percentage.
• 10182555Oct 16, 2020Engine cooling. This Preliminary information communicates A Vehicle may have a concern of service engine light, misfire and engine noise with possible of DTC P0300 P0106 P0506, Possible valve spring concern
• 10183168Oct 13, 2020Fuel system. This informational bulletin advises the technician on what to do if the DEF pump has been replaced and perform a leak test to prime the pump.
• 10182552Oct 13, 2020Engine cooling. This Preliminary information communicates A Vehicle may have a concern of service engine light, misfire and engine noise with possible of DTC P0300 P0106 P0506, Possible valve spring concern
• 10183202Oct 12, 2020Electrical system, Equipment. This informational bulletin explains how the regen works for the DEF system and how it works at different levels.
• 10183780Oct 9, 2020Equipment. This warranty administration bulletin provides information on Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers.
• 10182542Oct 8, 2020Equipment. This Preliminary information communicates how the HVAC setting operates during a remote vehicle start.
• 10182540Oct 7, 2020Forward collision avoidance. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert".
• 10182535Oct 5, 2020Engine cooling. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
• 10183789Oct 1, 2020Transmission and drivetrain. This engineering information (EI) is requesting information from technicians and to contact the engineers listed in regards to Transmission Performance Issues without a Current or History DTC and Unable to Duplicate the Customer Concern (CCND).
• 10181724Sep 30, 2020Equipment. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10181180Sep 30, 2020Brakes, Wheels. PIP5753 created to advise the technician to inspect for loose bolts on the turbocharger if there is a performance issue and code set.
• 10181675Sep 29, 2020Equipment, Body and structure. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only).
• 10181172Sep 28, 2020Back-over prevention (rear camera). This Preliminary information communicates to the technition instructions to replace the particulate matter sensor for a P1488 and to use the special labor operation for tracking purposes.
• 10181729Sep 23, 2020Engine, Fuel system, Other or unknown. This engineering informational bulletin is requesting information from technicians to inspect for engine oil leak and contact the engineer listed.
• 10181720Sep 23, 2020Fuel system, Equipment. This technical bulletin provides a procedure to inspect and repair the fuel pressure sensor if found the cause of the customers concern.
• 10181161Sep 22, 2020Equipment. This Preliminary information communicates multiple vehicle issues caused by an aftermarket device and it gives dealership information where to inspect for this device.
• 10181159Sep 22, 2020Engine cooling. This Preliminary information communicates A Vehicle may have a concern of service engine light, misfire and engine noise with possible of DTC P0300 P0106 P0506, Possible valve spring concern
• 10181158Sep 22, 2020Engine cooling. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
• 10181732Sep 21, 2020Equipment, Exterior lighting. This engineering information (EI) is requesting information from technicians to provided the engineers listed in regards to No Trailer Lights, No Brake Lights and/or Trailer Tow Receptacle is Loose.
• 10181722Sep 21, 2020Equipment, Electrical system. This technical bulletin provides repair information to correct a customer concern of Radio Software Version U150 Update.
• 10181157Sep 21, 2020Equipment. This Preliminary information communicates information on radio software anamolies and future radio software updates to correct the concern.
• 10181156Sep 21, 2020Equipment. 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.
• 10181719Sep 18, 2020Equipment, Body and structure. This technical bulletin provides repair information to correct a customer concern of Hard Tri-Fold tonneau water leaks at the front corners of the pickup box.
• 10181148Sep 18, 2020Body and structure. This Preliminary information communicates the need for proper documentation when submitting a Field Product Report on paint issues with the new HD Silverado and Sierra.
• 10181717Sep 17, 2020Steering, Equipment. This technical bulletin provides a procedure to try multiple different adjustments based on the condition of Steering Dither/Shake or Quick Steering Wheel Oscillation at Speeds of 80-129?km/h (50-80?mph).
• 10181144Sep 17, 2020Electrical system. This Preliminary information communicates an issue with the underhood electrical center bolts being loose which can cause any of the following symptoms: - No crank - No start - Starter grinds or reengages after engine running - Headlights flicker or flash - SES MIL - IPC gauges sweep/fluctuate and various IPC warning lights or messages - High or low system voltage Some of these concerns may be notices with…
• 10181141Sep 15, 2020Engine cooling. This PI was created to gather data to root cause the P06DD and/or oil consumption
• 10181731Sep 9, 2020Transmission and drivetrain. This engineering information (EI) is requesting information from technicians to provided the engineers listed in regards to Early, Late, Harsh and/or Slip Type Transmission Performance.
• 10181676Sep 9, 2020Fuel system. This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part.
• 10181704Sep 3, 2020Engine, Electrical system. This technical bulletin provides a procedure to update the GPCM if found the cause of the customers concern.
• 10181703Sep 2, 2020Body and structure. This technical bulletin provides repair information to correct a customer concern of vertical misalignment between cab and pickup box on driver side of vehicle.
• 10181660Sep 2, 2020Transmission and drivetrain. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
• 10179658Aug 27, 2020Engine. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
• 10180319Aug 24, 2020Back-over prevention (rear camera). This technical bulletin provides repair information to correct a customer concern of Rearview Camera Displaying Narrow Guidelines and Zoomed Out/Fisheye Appearance.
• 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.
• 10179641Aug 20, 2020Engine cooling, Equipment. This Preliminary information communicates to the technition instructions to replace the particulate matter sensor for a P1488 and to use the special labor operation for tracking purposes.
• 10180311Aug 17, 2020Back-over prevention (rear camera). This informational bulletin provides information for dealers/technicians on Rear View Camera Display Bright At Night.
• 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).
• 10213747Aug 12, 2020Fuel system, Engine cooling, Equipment. Service Update (population expanded). In some vehicles, equipped with diesel engines, the Diesel Exhaust Fluid (DEF) system may not immediately reactivate, as it should, after the vehicle?s control system finds that a DEF heater fault is no longer present. In these vehicles, after such a fault is detected as absent, DEF system reactivation, including DEF injection, may not occur until the ignition key is cycled…
• 10180306Aug 6, 2020Brakes. This technical bulleti provides a procedure to replace the front and rear brake pads if the brakes are squealing.
• 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.
• 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.

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