1999 GMC Suburban Technical Service Bulletins

36 technical service bulletins (TSBs) are on record for the 1999 GMC 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.

• 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.
• 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.
• 10115081Nov 2, 2015Transmission and drivetrain, Equipment. This Preliminary Information communication provides information to the technician about cooler line fittings that come with the 4T65E General Motors remanufactured transmission may not be the same as Original equipment manufacturer quick connect verses inverted flare. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
• 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.
• 10114453Apr 7, 2015Fuel system. This Preliminary Information communication provides information to the technician about vehicles that may have a buzz noise at idle after fuel pressure regulator replacement. Technician will need to gain access to the fuel pump. After gaining access to the fuel pump check the power and ground for voltage drop with the key in the off from the fuel pump to the battery post. Technician should also check the pin fit…
• 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.
• 10190932Feb 1, 2014Equipment, Wheels. Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes…
• 10190931Feb 1, 2014Equipment, Wheels. Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes…
• 10190934Jan 1, 2014Body and structure, Equipment. 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 their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the…
• 10190933Jan 1, 2014Equipment, Body and structure. 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 their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the…
• 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.
• 10112681Dec 17, 2012Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that may have a planetary gear whine noise in first and second gear. Technician should compare the noise to a like vehicle. Technician will need to check the build date of the transmission, if it was built after 09/01/2003 and it is determined that a vehicle has an abnormal amount of noise, perform the rear unit end…
• 10112600Nov 26, 2012Transmission and drivetrain. This Preliminary Information communication provides information to the technician with the axel setup information from American Axle Manufacturing. Technician should be advised that the maximum pinion shim to be used or stacked behind the pinion is 0.050?, and the minimum pinion shim is 0.020? for an 8.6 axle. The range for available pinion depth shims for the 10.5? axle is 0.006? to 0.024?. When setting the…
• 10112523Oct 30, 2012Transmission and drivetrain, Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have slip in forward ranges immediately after replacing the input housing. Technician will inspect the 3-4 clutches and the forward clutch oil feed passages for leakage between circuits. Technician should apply regulated compressed air to the 3-4 clutch feed hole and the forward clutch feed hole one at a time with…
• 10027804Nov 1, 2008Electrical system, Equipment. General motors corp: special coverage adjustment; analog onstar deactivation. *pe updated 2/17/09.
• 10026805Sep 1, 2008Equipment. Buick chevrolet gmc service campaign: see document search button for owner letter. Special coverage adjustment-analog onstar deactivation. Csc letter was received.
• 10021676Jun 15, 2007Transmission and drivetrain. New design front axle side bearing adjusters.
• 10020874Sep 23, 2006Suspension. Left front axle shaft difficult to remove. Axle differential leak seal shaft.
• 10017299Nov 2, 2005Transmission and drivetrain. Electronic transfer case unable to complete shift.
• 10016707Sep 28, 2005Transmission and drivetrain. Four wheel drive inoperative and the 4wd service light will illuminate. Diagnosis may reveal that the atc fuse could be open, possible dtc c0308, or various u codes may be set. The encoder motor may also be shorted or the tccm may be damaged.
• 10014959Mar 1, 2005Engine cooling. Replacement of connector when replacing fuel tank module/fuel pump module.
• 10014945Mar 1, 2005Suspension. Revised front caster and camber adjustment procedure. Original not yet received.
• 10012577Aug 1, 2003Steering. Revised steering wheel position sensor or steering shaft lower bearing replacement procedure and steering wheel position sensor centering procedure.

← All problems reported for the 1999 GMC Suburban