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Service bulletins for the 2015 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.

3099 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Suspension are shown. Show all

Bulletins, newest first
06-03-09-004F2018-05-21. Service bulletin. SUSPENSION:REAR; SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY; SUSPENSION. This technical bulletin provides a procedure to add a lubricant to the rear leaf springs to correct the customers concern of a squeaking noise from the rear suspension.
PI02003D2018-05-07. Service bulletin. SUSPENSION. This preliminary informational bulletin provides technicians a recommendation for when they are performing a front end alignment and find an alignment dowel pin missing .
PIT5049D2018-03-12. Service bulletin. SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:FRONT:SHOCK ABSORBER. This Preliminary Information communication provides information to the technician on the steps to help diagnose and repair vehicles with a rattle, squeak, clunk, thump, or bump. If published Service Information diagnostics do not lead to a repair for the concern. Technician should inspect the opposite side shock/strut for the cause of the concern.
PIT5287D2018-03-12. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION:FRONT:SHOCK ABSORBER. This Preliminary Information communication provides information to the technician with the correct way to remove the front shock electrical connector terminals. Technician will need to slightly bend the end of the J-38125-12A release tool. There is a purple Terminal Position Assurance that will align itself in the release position when the release tool is inserted into the release hole. There is a metal locking tab on the terminal that will need to be pushed in before the terminal will pull out of the connector.
PIT5451B2018-02-21. Service bulletin. SUSPENSION; WHEELS. This Preliminary Information communication provides information to the technician about vehicles that have a vibration at highway speed. Technician will need to replace the wheel for a rolled lip of aluminum in the hub opening.
PIT5451A2018-01-22. Service bulletin. SUSPENSION; WHEELS. This Preliminary Information communication provides information to the technician about vehicles that have a vibration at highway speed. Technician will need to replace the wheel for a rolled lip of aluminum in the hub opening.
050308002F2017-12-22. Service bulletin. SUSPENSION. This informational bulletin was created to aid the technician in diagnosing the difference between a shock or strut that has a fluid residule from a possible external source from a leaking shaft seal.
PI1354A2017-12-22. Service bulletin. SUSPENSION. This preliminary informational bulletin provides additional information for possible causes in vibration and how to diagnose them.
PIT5533A2017-11-14. Service bulletin. 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.
PIP5211F2017-10-15. Service bulletin. SUSPENSION. This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair vehicles with a rough idle and/or vibration at idle in Drive. This condition will not be present in Park, or Neutral. This concern may be caused by ground out within the one or both engine mounts. Technician will use CH-51450-A (Pico Oscilloscope) to measure the vibration disturbance. If the vibration concern is E1.5 in the horizontal / lateral direction with Pico sensor mounted in seat track as indicated ? continue with steps to reduce the amplitude of the vibration by adding spacers in key locations to reduce ground out within the engine mounts. The 6.2L engine has a characteristic E1 which can be felt, and may be described as a lopey idle. Do not confuse 6.2L E1 characteristic (not caused by mount ground-out), with E1.5 normal idle characteristics being transmitted into the truck via ground-out thru the engine mounts. If measuring high at the seat track 12 mg or greater; replacement of the engine mounts should help reduce the amplitude of the vibration. If the disturbance measures at the seat track as E1.5 lateral in the range of approximately 2.5 - 8 mg using a tri-axis sensor. Then place tri-axis Pico sensor on the inboard seat track forward-most location to record measurement of the rough idle vibration concern. With the Heater-Vent-Air Conditioning on perform several short heavy launch events from stop to stop to bring the temperatures back up while attempting to re-create the rough idle vibration in Drive with Pico sensor placed on inboard seat track; while the vibration is active ? Record Pico reading. This method seems to provide better results than extended test drives. If the Pico reading for E1.5, with vibration active, at specified seat track location measures close to 2mg or less use Service Information to diagnose rough idle / vibration. If the Pico reading for E1.5, with vibration active, at the inboard forward seat track l
PIT5404D2017-10-04. Service bulletin. SUSPENSION. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a buffeting vibration and/or drone type noise, exhaust tone change, and/or body pressure booming. Replace or repair any of the issue that was found in the inspection.If the vehicle is equipped with a 4.3 liter or 5.3 liter engine an updated exhaust system is now available.
PIT5214B2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SUSPENSION. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further support. For any vehicles that remains unrepaired after being at the dealer for three days or more and a related bulletin or PI is not found, contact General Motors Technical Assistance Center for further support.
PIT5214A2017-08-15. Service bulletin. SUSPENSION; TIRES. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further support. For any vehicles that remains unrepaired after being at the dealer for three days or more and a related bulletin or PI is not found, contact General Motors Technical Assistance Center for further support.
PIP53382017-08-15. Service bulletin. SUSPENSION; STRUCTURE:FRAME AND MEMBERS. This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new Pico Oscilloscope data has been saved email the data to General Motors Technical Assistance Center in the subject line include ?Vibration? ?Business Associate Code? and the last 8 of the Vehicle Identification Number.
PIT3098E2017-08-15. Service bulletin. STRUCTURE:FRAME AND MEMBERS; SUSPENSION; EXTERIOR LIGHTING:HEADLIGHTS. 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.
PIT53492017-08-15. Service bulletin. SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION. This Preliminary Information communication advises the technician that the production rear shocks on trucks equipped with MagneRide Regular Production Option Code (Z95) are not interchangeable left to right.
PIT53452017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION; EQUIPMENT; TIRES. This Preliminary Information communication provides information to the technician that before calling General Motors Technical Assistance Center for assistance, there is some basic diagnostic information that must be obtained in order for General Motors Technical Assistance Center to provide proper direction in repairing the vehicle. Technician should use published Service Information vibration diagnostics, Pico scope, and Vibration Analysis Worksheet found in the Latest Version of Bulletin 03-00-91-001.
PIT54512017-08-15. Service bulletin. WHEELS; SUSPENSION. This Preliminary Information communication provides information to the technician about vehicles that have a vibration at highway speed. Technician will need to replace the wheel for a rolled lip of aluminum in the hub opening.
PIP5211C2017-08-15. Service bulletin. ENGINE; SUSPENSION. This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair vehicles with a rough idle and/or vibration at idle in Drive. This condition will not be present in Park, or Neutral. This concern may be caused by ground out within the one or both engine mounts. Technician will use CH-51450-A (Pico Oscilloscope) to measure the vibration disturbance. If the vibration concern is E1.5 in the horizontal / lateral direction with Pico sensor mounted in seat track as indicated ? continue with steps to reduce the amplitude of the vibration by adding spacers in key locations to reduce ground out within the engine mounts. The 6.2L engine has a characteristic E1 which can be felt, and may be described as a lopey idle. Do not confuse 6.2L E1 characteristic (not caused by mount ground-out), with E1.5 normal idle characteristics being transmitted into the truck via ground-out thru the engine mounts. If measuring high at the seat track 12 mg or greater; replacement of the engine mounts should help reduce the amplitude of the vibration. If the disturbance measures at the seat track as E 1.5 lateral in the range of approximately 2.5 - 8 mg using a tri-axis sensor. Then place tri-axis Pico sensor on the inboard seat track forward-most location to record measurement of the rough idle vibration concern. With the Heater-Vent-Air Conditioning on perform several short heavy launch events from stop to stop to bring the temperatures back up while attempting to re-create the rough idle vibration in Drive with Pico sensor placed on inboard seat track; while the vibration is active ? Record Pico reading. This method seems to provide better results than extended test drives. If the Pico reading for E1.5, with vibration active, at specified seat track location measures close to 2mg or less use Service Information to diagnose rough idle / vibration. If the Pico reading for E1.5, with vibration active, at the inboard forward seat track
PIT54032017-08-15. 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.
PIP5248C2017-08-15. Service bulletin. SUSPENSION:FRONT:WHEEL BEARING; ENGINE. This Preliminary Information communication provides information to the technician on the steps need to diagnose and repair vehicles that may have stalling shudder and/or hard shifting into 1st gear or reverse vibration on launch (with excessive crankshaft end play). Technician will test to determine if the crank shaft end play is within specification 0.0015–0.0086 inch. If end play is found to be out of specification, remove engine and inspect for possible crankshaft thrust bearing and/or crankshaft for wear. Inspect thrust bearing for wear on one side and crankshaft on that “mating” surface. If the thrust bearing has three vertical channels worn off replace connecting rod bearings, main bearings, thrust bearing and crankshaft. If working on a Corvette the oil tank with lines and oil cooler are both required to be replaced if equipped.
PIT5403A2017-08-15. 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.
PI02003D2017-08-15. Service bulletin. SUSPENSION:FRONT. This preliminary informational bulletin provides technicians a recommendation for when they are performing a front end alignment and find an alignment dowel pin missing .
06-03-09-004G2017-08-15. Service bulletin. SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY. This technical bulletin adds the 2016 model year to repair information for lubricating the rear leaf springs to correct a customer concern for a squeak noise from rear of vehicle.
09-03-09-001C2017-08-15. Service bulletin. SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY; SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY; SUSPENSION. This technical bulletin provides repair information for the re-torque of leaf spring bolts to correct a customer concern for a clunking noise coming from the rear of the vehicle.

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