2001 Chevrolet Trailblazer service bulletins & manufacturer communications

80 manufacturer communications are on file with NHTSA for the 2001 Chevrolet Trailblazer. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.

• This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
  PIP5601C · Technical service bulletin · Unknown OR Other · issued Jul 18, 2025
• Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which mo…
  General Communication · Service campaign · Electrical System · issued Aug 26, 2024
• GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inad…
  24-NA-141 · Technical service bulletin · Power Train · issued Jul 24, 2024
• This service 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 mi…
  16-NA-383 · Technical service bulletin · Engine · issued Jun 28, 2024
• This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
  18-NA-099 · Technical service bulletin · Unknown OR Other · issued Jun 17, 2024
• This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4…
  24-NA-098 · Technical service bulletin · Electrical System · issued Jun 6, 2024
• This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
  06-06-01-019C · Technical service bulletin · Engine and Engine Cooling · issued Mar 14, 2024
• 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 …
  16-NA-383 · Technical service bulletin · Engine and Engine Cooling · issued Mar 13, 2024
• This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts …
  22-NA-074 · Technical service bulletin · Engine and Engine Cooling · issued Feb 22, 2024
• This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
  18-NA-099 · Technical service bulletin · Equipment · issued Jan 16, 2024
• This PI bulletin advises the technician on the proper way to install the pistons in an engine.
  PI1394B · Technical service bulletin · Power Train · issued Jan 12, 2024
• This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
  02-08-42-001J · Technical service bulletin · Exterior Lighting · issued Jan 12, 2024
• This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
  23-NA-219 · Technical service bulletin · Equipment · issued Dec 12, 2023
• This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.
  17-NA-170 · Technical service bulletin · Wheels · issued Oct 6, 2023
• This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).
  10-00-89-006J · Technical service bulletin · Equipment · issued Sep 26, 2023
• The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer…
  23-NA-153 · Technical service bulletin · Power Train · issued Sep 1, 2023
• This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and pre…
  18-NA-073 · Technical service bulletin · Engine and Engine Cooling · issued Aug 24, 2023
• This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.
  17-NA-170 · Technical service bulletin · Wheels · issued Apr 27, 2023
• This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
  22-NA-009 · Technical service bulletin · Engine and Engine Cooling · issued Mar 17, 2023
• This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
  17-NA-073 · Technical service bulletin · Equipment · issued Feb 21, 2023
• This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.
  01-08-42-001O · Technical service bulletin · Exterior Lighting · issued Feb 15, 2023
• This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P04…
  21-NA-124 · Technical service bulletin · Engine and Engine Cooling · issued Dec 14, 2022
• This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts …
  22-NA-074 · Technical service bulletin · Engine and Engine Cooling · issued Nov 9, 2022
• This service bulletin provides information on Module Harvesting.
  22-NA-205 · Technical service bulletin · Electrical System · issued Oct 19, 2022
• This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).
  10-00-89-006I · Technical service bulletin · Equipment · issued Oct 7, 2022
• This service bulletin provides information on Handling Requests for Modifications to Permanently Import/Export Vehicles Between the U.S. and Canada.
  22-NA-195 · Technical service bulletin · Equipment · issued Sep 28, 2022
• This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
  22-NA-009 · Technical service bulletin · Engine and Engine Cooling · issued Sep 14, 2022
• This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the engine is started while diagnosing for noise from the engine …
  22-NA-181 · Technical service bulletin · Power Train · issued Sep 1, 2022
• This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen …
  20-NA-065 · Technical service bulletin · Engine and Engine Cooling · issued Aug 15, 2022
• This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
  22-NA-009 · Technical service bulletin · Engine and Engine Cooling · issued Jun 15, 2022
• This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts …
  22-NA-074 · Technical service bulletin · Engine and Engine Cooling · issued Mar 31, 2022
• This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
  22-NA-009 · Technical service bulletin · Engine and Engine Cooling · issued Mar 22, 2022
• This informational 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…
  16NA383 · Technical service bulletin · Equipment · issued Jan 2, 2020
• This informational bulletin provides additional information on how to install pistons and suggest what tools to use.
  PI1394A · Technical service bulletin · Engine · issued Aug 29, 2016
• This informational bulletin provides information to gm dealers on the correct cleaning methods when cleaning engine gasket sealing surfaces.
  000601012F · Technical service bulletin · Engine · issued Aug 2, 2016
• This preliminary information communication advises the technician if unable to place an onstar call in the ignition on mode after the onstar canada upgrade, to contact the gm techn…
  PIT5485B · Technical service bulletin · Electrical System · issued Apr 27, 2016
• This preliminary information communication advises the technician on the steps for diagnosing the concern. The vehicle may be unable to connect to onstar using the white, blue or r…
  PIT5389A · Technical service bulletin · Equipment · issued Apr 19, 2016
• This preliminary information communication advises the technician the steps on repairing the concern. A customer may identify a concern of unable to reactivate a vehicle's onstar t…
  PIC5050A · Technical service bulletin · Equipment · issued Apr 19, 2016
• This preliminary information communication provides information to help the dealership technicians perform a parasitic drain test for the onstar module. When performing battery par…
  PIC4935E · Technical service bulletin · Electrical System · issued Apr 19, 2016
• This preliminary information communication provides information to help the dealership technicians perform a parasitic drain test for the onstar module. When performing battery par…
  PIC-4935-E · Technical service bulletin · Electrical System · issued Apr 19, 2016
• This preliminary information communication advises the technician the steps on repairing the concern. A customer may identify a concern of unable to reactivate a vehicle's onstar t…
  PIC-5050-A · Technical service bulletin · Electrical System · issued Apr 19, 2016
• This preliminary information communication advises the technician, if unable to place an onstar call in the ignition on mode after the onstar canada upgrade to contact the gm techn…
  PIT5485A · Technical service bulletin · Equipment · issued Apr 8, 2016
• This preliminary information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rock…
  PIP5226A · Technical service bulletin · Equipment · issued Feb 11, 2016
• OnStar Voice Fallback Number Update
  15-NA-079 · Technical service bulletin · Equipment · issued Dec 1, 2015
• OnStar® Voice Fallback Number Update Some customers may have received a letter from OnStar® stating that "We recently tried to provide a software update to the OnStar® hardware in …
  15-NA-079 · Technical service bulletin · Equipment · issued Dec 1, 2015
• This preliminary information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls…
  PIC3278F · Technical service bulletin · Equipment · issued Jan 14, 2015
• Canadian Customers Unable To Place Calls And Turn By Turn Inoperative In The United States.
  PIT5264B · Technical service bulletin · Equipment · issued Nov 1, 2014
• Vehicle Recalls
  Recalls · Technical service bulletin · Equipment · issued Jun 30, 2014
• Programming And Activation Of Replacement OnStar Modules.
  PIC5588B · Technical service bulletin · Equipment · issued Jun 1, 2014
• Information On Requests To Add OnStar Bluetooth Option.
  PIT4864F · Technical service bulletin · Equipment · issued Mar 1, 2014
• Canadian Customers Unable To Place Calls In The United States
  PIT5264 · Technical service bulletin · Equipment · issued Mar 1, 2014
• Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straighten…
  99-08-51-007F · Technical service bulletin · Equipment Adaptive/mobility · issued Feb 1, 2014
• Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straighten…
  99-08-51-007F · Technical service bulletin · Wheels · issued Feb 1, 2014
• Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of …
  PI0281D · Technical service bulletin · Structure · issued Jan 1, 2014
• Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of …
  PI0281D · Technical service bulletin · Equipment Adaptive/mobility · issued Jan 1, 2014
• Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
  130089009 · Technical service bulletin · Engine and Engine Cooling · issued Sep 1, 2013
• This informational bulletin provides information regarding the inappropriate warranty claims submitted for damaged radios and instrument panel clusters, provides exampls on whats a…
  08-08-44-015C · Technical service bulletin · Equipment · issued Nov 29, 2012
• This informational bulletin provides information regarding the inappropriate warranty claims submitted for damaged radios and instrument panel clusters, provides exampls on whats a…
  08-08-44-015C · Technical service bulletin · Electrical System · issued Nov 29, 2012
• This informational bulletin provides a description of the proper wheel installation and proper wheel torque techniques used to install wheels onto vehicles
  12-03-10-002 · Technical service bulletin · Equipment · issued Nov 26, 2012
• This informational bulletin provides a description of the proper wheel installation and proper wheel torque techniques used to install wheels onto vehicles
  12-03-10-002 · Technical service bulletin · Wheels · issued Nov 26, 2012
• This warranty administration bulletin provides information regarding customer concerns not duplicated and which labor operations to claim when the concern cannot be duplicated. Als…
  06-00-89-026J · Technical service bulletin · Equipment · issued Nov 20, 2012
• This warranty administration bulletin provides information regarding customer concerns not duplicated and which labor operations to claim when the concern cannot be duplicated. Als…
  06-00-89-026J · Technical service bulletin · Equipment · issued Nov 20, 2012
• This informational bulletin provides a list of newly released PI and Bulletins in regards to recent released vehicles so that vehicles can be fixed right the first time in for serv…
  10-00-89-017W · Technical service bulletin · Equipment · issued Nov 12, 2012
• This informational bulletin provides a list of newly released PI and Bulletins in regards to recent released vehicles so that vehicles can be fixed right the first time in for serv…
  10-00-89-017W · Technical service bulletin · Equipment · issued Nov 12, 2012
• This warranty administration bulletin provides information on what should be considerd warranty damage or damage that was at fault of the cutomer and how to properly claim them on …
  10-08-64-002B · Technical service bulletin · Equipment · issued Nov 8, 2012
• This warranty administration bulletin provides information on what should be considerd warranty damage or damage that was at fault of the cutomer and how to properly claim them on …
  10-08-64-002B · Technical service bulletin · Equipment · issued Nov 8, 2012
• Programming And Activation Of Replacement OnStar Modules.
  PIC5588A · Technical service bulletin · Equipment · issued Oct 1, 2012
• Gm: there are seat belt problems: difficulty latching and unlatching buckle. Buckle release button is sticking. Seat belt warning light illuminated. Likely caused by sticky beverag…
  09-09-40-001A · Technical service bulletin · Seat Belts · issued Jan 1, 2012
• General motors: information provided by bulletin for all 2012 and prior general motor trucks and passenger vehicles regarding the adjustable comfort and custom upholstery of the dr…
  SB-10-08-50-003B · Technical service bulletin · Seats · issued Nov 1, 2011
• Gmc: fluid leak from transmission oil cooler lines due to corrosion. All 2000-2006 light duty trucks equipped with the light duty automatic transmission. *pe
  PIT-4722 · Technical service bulletin · Power Train · issued Oct 1, 2008
• Gmc: fuel gauge fluctuation in park or neutral, causing the low fuel light to illuminate. *pe
  PIT-3046E · Technical service bulletin · Fuel System, Other · issued Aug 1, 2008
• Ipc, interior lights and/or headlamps flicker. *ak fb2
  3170E · Technical service bulletin · Interior Lighting · issued Feb 16, 2006
• Misfire at idle cold and possible p0171 and or p0174. *eh
  3232 · Technical service bulletin · Engine and Engine Cooling · issued Jan 28, 2005
• Fuel gauge fluctuation in park or neutral. *tt
  3046A · Technical service bulletin · Fuel System, Other · issued Sep 27, 2004
• 99 through 05 year vehicles, equipped with three-button onstar systems. *tt
  3047 · Technical service bulletin · Equipment · issued Jan 1, 2004
• When using voice recognition dialing, some numbers or commands may not be understood by the system especially the number two (2). *tt
  3011 · Technical service bulletin · Equipment · issued Jan 1, 2004
• Onstar system is attempting and/or completing phone calls which the operator of the vehicle did not initiate. *tt
  00372D · Technical service bulletin · Equipment · issued Jan 1, 2004
• Diagnostic trouble code b1000. *mr
  02038 · Technical service bulletin · Electrical System · issued Jan 1, 2004
• No 2nd, no 4th and no reverse. To include 2004 light duty automobiles and trucks equipped with 4l60e or 4l65e automatic transmission. *tt
  00822B · Technical service bulletin · Power Train · issued Jan 1, 2004
• Safety recall 01073 regarding the multifunction switch which may develop an open circuit condition with the bottom contact in the hazard switch carrier that results in the stop lam…
  01073 · Technical service bulletin · Exterior Lighting · issued Apr 8, 2002