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Service bulletins for the 2014 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.

3324 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
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.
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.
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.
09-03-09-001B2017-08-15. Service bulletin. SUSPENSION; SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY; SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY. 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.
PIT5049C2017-08-15. Service bulletin. SUSPENSION:FRONT. 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.
PIP51372017-08-15. Service bulletin. SUSPENSION; POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. This Preliminary Information communication provides information to the technician about vehicles that have a rough idle and/or a vibration at idle in gear. Technician should try centering the engine and transmission mount. If no change then shims the right engine mount to most inner bolts 3mm.
05-03-08-002H2017-08-15. Service bulletin. SUSPENSION:FRONT:SHOCK ABSORBER. This informational bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
06-03-09-004H2017-07-18. Service bulletin. SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY. This technical bulletin provides a procedure to lube the rear leaf springs on vehicles with the condition of a squeak noise originating from the rear of the vehicle.
PI1354D2017-03-13. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID; ELECTRICAL SYSTEM; SUSPENSION. THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES INFORMATION ON A PROCEDURE FOR DIAGNOSING AND REPAIRING VIBRATIONS CAUSED BY THE WHEEL AND TIRE, AXLE COMPONENTS AND/OR PROPELLER SHAFTS.
PIT5403B2016-10-21. 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.
PIT5307D2016-10-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM; SUSPENSION. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE A SERVICE ENGINE SOON MALFUNCTION INDICATOR LAMP, ANTILOCK BRAKING SYSTEM MALFUNCTION INDICATOR LAMP, SERVICE SUSPENSION SYSTEM MESSAGE, MISFIRE, HESITATION, NO CRANK, HEATER-VENT-AIR CONDITIONING INOPERATIVE. TECHNICIAN MAY FIND F11UA, F104UA, F35UA, AND OR F60UA BLOWN. TECHNICIAN SHOULD INSPECT THE ENGINE HARNESS NEAR THE VACUUM PUMP PULLEY TO BE CHAFING. TECHNICIAN WILL NEED TO REROUTE THE WIRE HARNESS AND REPAIR AND DAMAGED WIRES.
PIT-5457-A2016-08-13. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; SUSPENSION; STEERING:HYDRAULIC POWER ASSIST SYSTEM; SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS FOR DIAGNOSING THE CONCERN, AND COMPLETING A WIRING REPAIR. THE VEHICLE MAY HAVE A SERVICE ANTILOCK BRAKING SYSTEM, TRACTION CONTROL, POWER STEERING OR SUSPENSION SYSTEM MESSAGE ON THE DRIVERS INFORMATION CENTER.
PIT-5307-C2016-08-11. Service bulletin. ENGINE; SUSPENSION; EQUIPMENT:APPLIANCE:AIR CONDITIONER; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE THE CONCERN WHEN THE VEHICLE HA SA SERVICE ENGINE SOON LIGHT, ANTILOCK BRAKING SYSTEM LIGHT OR SERVICE SUSPENSION MESSAGE, MISFIRE, HESITATION, NO CRANK, AIR CONDITIONING INOPERATIVE.
SB-09-03-09-001D2016-08-08. Service bulletin. SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY; SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:U-BOLT, LEAF SPRING TO AXLE. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO RE-TORQUE THE JOINTS OF THE REAR LEAF SPRING ASSEMBLY TO CORRECT A CUSTOMER CONCERN OF A CLUNKING NOISE COMING FROM THE REAR OF THE VEHICLE.
PIT54572016-07-07. Service bulletin. SUSPENSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PB-134302016-06-09. Service bulletin. POWER TRAIN; EQUIPMENT; SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY. "13430 - CUSTOMER SATISFACTION. CERTAIN VEHICLES, EQUIPPED WITH A 3.73 REAR AXLE RATIO (GT4) AND LOCKING REAR DIFFERENTIAL (G80), MAY HAVE A REAR AXLE PINION NUT THAT IS IMPROPERLY FASTENED. THIS COULD CAUSE A GEAR WHINE, CLICKING, GRINDING, OR A MOAN NOISE FROM THE REAR AXLE. DEALERS ARE TO REFASTEN THE PINION NUT."

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