# Service bulletins for the 1999 Chevrolet Silverado

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

333 bulletins from NHTSA, as of 2026-10-19.

- [Recalls](/bulletins/10248444.md), 2024-01-08, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Vehicle Recalls
- [130522001B](/bulletins/10246647.md), 2023-12-11, Service bulletin: SERVICE BRAKES. Pre\-Formed and Pre\-Flared Hydraulic Brake Pipe Kits Now Available for Service
- [130522001A](/bulletins/10246646.md), 2023-12-11, Service bulletin: SERVICE BRAKES. Pre\-Formed and Pre\-Flared Hydraulic Brake Pipe Kits Now Available for Service
- [130522001](/bulletins/10246645.md), 2023-12-11, Service bulletin: SERVICE BRAKES. Pre\-Formed and Pre\-Flared Hydraulic Brake Pipe Kits Now Available for Service
- [130089009](/bulletins/10246631.md), 2023-12-11, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). Expanded Availability for Remanufacture and Return \(R\&R\) Electronic Control Modules
- [130089004I](/bulletins/10246624.md), 2023-12-11, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Car and Truck Fix it Right the First Time Issues
- [23\-NA\-144](/bulletins/10242252.md), 2023-09-15, Service bulletin: SERVICE BRAKES. This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.
- [PIT3665M](/bulletins/10237671.md), 2023-06-13, Service bulletin: ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL. This Preliminary Information communication advises the technician that the Hydro\-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
- [PIT3227S](/bulletins/10237648.md), 2023-06-13, Service bulletin: STRUCTURE:BODY:TAILGATE. This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
- [17\-NA\-073](/bulletins/10232287.md), 2023-03-03, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
- [PIT3665L](/bulletins/10226382.md), 2022-11-21, Service bulletin: SERVICE BRAKES. This Preliminary Information communication advises the technician that the Hydro\-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
- [PIT3227R](/bulletins/10211764.md), 2022-05-16, Service bulletin: STRUCTURE:BODY:TAILGATE:HINGE AND ATTACHMENTS. This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
- [PIP4723F](/bulletins/10208027.md), 2022-02-14, Service bulletin: SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, GASOLINE. 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.
- [PIT3227Q](/bulletins/10193430.md), 2021-05-17, Service bulletin: EQUIPMENT. This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
- [PI0281D](/bulletins/10190934.md), 2021-04-26, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS. 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 component is constructed of an aluminum alloy.
- [PI0281D](/bulletins/10190933.md), 2021-04-26, Service bulletin: STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; EQUIPMENT ADAPTIVE/MOBILITY. 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 component is constructed of an aluminum alloy.
- [99\-08\-51\-007F](/bulletins/10190932.md), 2021-04-26, Service bulletin: EQUIPMENT; WHEELS; EQUIPMENT ADAPTIVE/MOBILITY. 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, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility — Outside Company later in this bulletin.
- [99\-08\-51\-007F](/bulletins/10190931.md), 2021-04-26, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; WHEELS; EQUIPMENT. 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, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility — Outside Company later in this bulletin.
- [PIT3665J](/bulletins/10178353.md), 2020-08-10, Service bulletin: SERVICE BRAKES. This Preliminary Information communication advises the technician that the Hydro\-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
- [PIP4723D](/bulletins/10171318.md), 2020-02-10, Service bulletin: 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.
- [PIC4696E](/bulletins/10168979.md), 2019-12-09, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL:ANTI\-THEFT DEVICES. 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 administrative details.
- [060309004N](/bulletins/10168206.md), 2019-11-25, Service bulletin: SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY. This technical bulletin provides a procedure to apply grease to the leaf springs to correct a condition of a squeak noise from the metals making contact.
- [17NA073](/bulletins/10166638.md), 2019-10-28, Service bulletin: EQUIPMENT. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
- [DOR\-K2S2K\-10](/bulletins/10166445.md), 2019-10-21, Service bulletin: EQUIPMENT. This SKU is a Pitman Arm. The customer communication requested return of unsold inventory to inspect for the spline size. If the spline size is incorrect it will not have a tight fit with the mating component, and would lead to detectable play and/or noise when steering.
- [PIC4696D](/bulletins/10165876.md), 2019-10-15, Service bulletin: EQUIPMENT. 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.

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