1998 Chevrolet Blazer Technical Service Bulletins

28 technical service bulletins (TSBs) are on record for the 1998 Chevrolet Blazer. 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.

• 10232287Feb 21, 2023Equipment. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
• 10208027Jan 14, 2022Fuel system, Brakes. This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
• 10171318Jan 31, 2020Electrical system. This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
• 10168979Nov 22, 2019Equipment. This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code. The PI update to version D is to advise the unlock procedure is temporarily unavailable. E version update is to add…
• 10166638Sep 18, 2019Equipment. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
• 10165876Sep 5, 2019Equipment. This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code. The PI update to version D is to advise the unlock procedure is temporarily unavailable.
• 10154641Feb 15, 2019Equipment. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
• 10141381May 31, 2018Equipment. This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code.
• 10157018Sep 20, 2017Fuel system, Tires, Equipment, Electrical system. This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
• 10138060Mar 15, 2017Equipment. This warranty administration bulletin provides policy information with the field action courtesy transportation policy.
• 10113443Feb 22, 2017Electrical system. This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
• 10082506Aug 26, 2016Equipment. This technical bulletin provides a procedure to reprogram the media disc player with the latest calibrations to correct a condition of the rear entertainment system not operating as intended in colder ambient temperature areas due to calibration concerns.
• 10114443Feb 27, 2016Fuel system. This Preliminary Information communication provides information to the technician about vehicles that have an inaccurate fuel gauge. Technician should drive the vehicle to duplicate the concern. The fuel gauge will have a tendency to falsely indicate a lower fuel level than what is actually present. The fuel gauge will take a few minutes to show the correct fuel level. On vehicles equipped with an automatic…
• 10096073Feb 17, 2016Transmission and drivetrain. This preliminary information communication provides information to the technician about vehicle that after a transmission or torque converter replacement the vehicle may have a harsh 1-2 upshift and the check engine light or service engine soon indicator is illuminated. If you have duplicated the customer’s concern and found diagnostic trouble code p0894 or p1870 set in the transmission control module please…
• 10114947Dec 4, 2015Equipment. This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code.
• 10114924Oct 23, 2015Equipment. This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code.
• 10248444Jun 30, 2014Equipment. Vehicle Recalls
• 10137901May 9, 2014Fuel system. This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.
• 10113258Sep 19, 2013Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have a Supplemental Inflatable Restraint lamp, Service Vehicle Soon lamp on and/or radio locked, possibly after module replacement. Technician will need to check for an incorrect or non-existent VIN number in modules that require them. Technician should ensure that all modules that are replaced are programmed per…
• 10246631Sep 1, 2013Engine cooling. Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
• 10139019May 3, 2013Equipment, Engine cooling. This preliminary informational bulletin provides information on High Oil Pressure on Startup After Engine Replacement Concern.
• 10026704Aug 1, 2008Fuel system. Gmc: fuel gauge fluctuation in park or neutral, causing the low fuel light to illuminate.
• 10020462Oct 23, 2006Body and structure. Clunk noise felt through the floor pan.
• 10018585Jan 6, 2006Electrical system. Fuel and temperature gauge inoperative, low fuel and battery light on, prndl inoperative.
• 10014809May 10, 2005Transmission and drivetrain. 4wd inoperative and diagnostic trouble code (dtc) u1026 atc fuse open.
• 10013572Apr 21, 2005Transmission and drivetrain. 4wd models with noise, vibration on dry pavement.
• 10012703Feb 1, 2004Engine cooling. Diagnostic information for intermittent vehicle no crank dead battery.
• 10016473Jul 1, 2003Body and structure. Water leak in front floor carpet area. Gm tech link.

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