WenmarOpen by Wenmar Pro

Service bulletins for the 2019 GMC Sierra

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.

2009 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Suspension are shown. Show all

Bulletins, newest first
PIP57052022-07-25. Service bulletin. POWER TRAIN; STRUCTURE; AIR BAGS; SUSPENSION. This Preliminary information communicates A vehicle may have a concern of a vibration or drone around 40 MPH and 1200 RPM under a light load. Debris in the tranmission mount. Inspect the transmission mount for debris. If debris is found, clean the mount, reinstall and evaluate for the concern.
183352022-05-31. Service bulletin. SUSPENSION; SUSPENSION:FRONT:CONTROL ARM; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Service Update. Certain vehicles may have a front half shaft that missed the induction hardening on the inboard splines. Improperly heat treated front half shafts would have a shorter durability term. In the event a half shaft may fracture, there are expectations that noises would emanate from the front corner suspension region and continued use may cause damage to ancillary components. Dealers are to replace both front half shafts, deform removed half shaft and scrap appropriately. Private Message to select dealers.
PIE0679A2022-04-06. Service bulletin. STEERING; SUSPENSION. This engineering information (EI) closure ends the need for further information from the field in regards to a Popping Noise Heard On Hard Turns and/or Going Over Speed Bumps, Creaking Noise While Turning Wheel Left and/or Right, Clicking Noise Heard On Slow Sharp Turns.
20NA0782021-12-20. Service bulletin. SUSPENSION. This technical bulletin provides a procedure to replace the 4 5 6 clutch housing if the bushing was found worn and the cause of the customers concern.
PIP5653K2021-09-13. Service bulletin. SUSPENSION:FRONT. This PI communicates that engineering is investigating a correction to a noise originating in the front of the vehicle.
19NA1292021-07-19. Service bulletin. SUSPENSION. This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise coming from the rear of the vehicle.
PIT5403H2021-06-14. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. This Preliminary Information communication provides information to the technician with the steps to diagnosis and repair vehicles with various handling, vehicle dynamics concerns, noises from the suspension or underbody, or issues related to damaged suspension components. Before any in-depth diagnostics are performed, be aware that various issues could occur if the vehicle has been modified and inform the customer the conditions noted may not be covered under warranty. Technician will inspect for installed aftermarket suspension components. Also inspect for improperly adjusted torsion bars.
050308002I2021-06-07. Service bulletin. SUSPENSION. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
PIP57982021-04-19. Service bulletin. SUSPENSION; STRUCTURE. This Preliminary information communicates Some customers may comment about a rough idle and/or vibration at idle. This condition may be most noticeable when the engine is completely warmed up and accessories are off, you may also feel this while idling at a stop in Drive. May feel like a misfire, stumble, lopey or lumpy idle or may be described as a low idle. This concern may be caused by several potential causes: Misfire and/or base engine concern Wrong fuel used (regular instead of premium when required) Idle speed fluctuation Engine mount pre-load
150089004C2021-03-08. Service bulletin. SUSPENSION:FRONT:MACPHERSON STRUT; SUSPENSION:FRONT:SHOCK ABSORBER; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
20NA2122020-12-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; SUSPENSION; ELECTRICAL SYSTEM; ENGINE. This technical bulletin provides repair information to correct a customer concern of IPC Gauges Inoperative or Fluctuate, No Crank, Start then Stall.
PIT5533C2020-08-10. Service bulletin. STRUCTURE; SUSPENSION. This Preliminary Information communication provides information to the technician about vehicles that have a creak, click, pop, and or crack type noise from the front suspension or front frame area while making tight turns. Technician will need to loosen and then re-torque the four front frame cross member nuts and bolts.
19NA1292020-04-27. Service bulletin. SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise coming from the rear of the vehicle.
PIT5403F2020-04-13. Service bulletin. SUSPENSION. This Preliminary Information communication provides information to the technician with the steps to diagnosis and repair vehicles with various handling, vehicle dynamics concerns, noises from the suspension or underbody, or issues related to damaged suspension components. Before any in-depth diagnostics are performed, be aware that various issues could occur if the vehicle has been modified and inform the customer the conditions noted may not be covered under warranty. Technician will inspect for installed aftermarket suspension components. Also inspect for improperly adjusted torsion bars.
PIE0541A2020-04-06. Service bulletin. SUSPENSION; EQUIPMENT. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a vibration and/or banging noise heard from under the vehicle.
060309004N2019-11-25. 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.
PIP5653D2019-11-12. Service bulletin. SUSPENSION. This Preliminary information communicates that engineering has developed a repair for a chirp noise associated with the front axle assembly.
PIP5653C2019-11-12. Service bulletin. SUSPENSION. This Preliminary information communicates that engineering has developed a repair for a chirp noise associated with the front axle assembly.
19NA1292019-09-23. Service bulletin. SUSPENSION. This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise coming from the rear of the vehicle. This condition may be caused by debris getting between the leaf springs and/or loose U-Bolts.
18NA1832019-09-23. Service bulletin. SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY. This technical bulletin provides a procedure to check and repair the rear shackle and/or add lube to the leaf springs to correct the noise.
090309001G2019-07-29. Service bulletin. SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY; SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET. This technical bulletin provides a procedure for re-torque the lead springs.
060309004M2019-07-29. 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.
PIT5457D2019-07-08. Service bulletin. SUSPENSION. This Preliminary Information communication provides information to the technician about vehicle with Service ABS and/or Traction control lights/message on, Service Power Steering System, Service Suspension System, and or Loss of communication with EBCM, SWPS, PSCM, and/or SCM. Technician may find Diagnostic Trouble Codes U0077, U0121, U0126, U0131, U0139, U0401, U0415, and/or U0428. Technician should remove the driver and passenger sill plate to gain access to the wire harness. If any open, damaged, or corroded wires should be repaired.
PIT3098G2019-04-08. Service bulletin. SUSPENSION. This Preliminary Information communication provides information to the technician about vehicles that have a lean to the left or right. Technician will need to measure fender wheel-opening heights, front and rear, to quantify vehicle lean. Fender wheel-opening heights are related to, but distinct from, trim height. The front wheel-opening height is known as P height, and the rear wheel-opening height is known as R height. Adjust and heights that are out of specification. After all adjustments are done, perform a front-end alignment and check headlight aim.
18NA3012019-03-25. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; SUSPENSION. This technical bulletin provides a procedure to install higher amp fuses to correct the axle actuator high amperage draw.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.