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Service bulletins for the 2009 Buick Enclave

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.

1230 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
PIT5165A2017-08-15. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS; STEERING:ELECTRIC POWER ASSIST SYSTEM. This Preliminary Information communication provides information to the technician on the step to replace the power steering cooler. Technician will need to block off the hoses near the cooler connection with appropriate clamps. After the hoses are clamped disconnect the cooler from the lines and remove the cooler. Before installing the new cooler prefill the new cooler on the bench and cap off the pre-filled cooler ends for installation. When the new cooler is installed remove the clamps on the hoses and follow the service information for Power Steering System Bleed Procedure.
PIT4429D2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that may have a power lift-gate that is inoperative from all the switches and the keyless entry transmitter only with the ignition in the off position. Technician will need to check for battery voltage on circuit 5985 going to the Engine Control Module and to the Transmission Control Module.
PIT4712D2017-08-15. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY. This Preliminary Information communication provides information to the technician about vehicles that the fuel gauge does not go to empty and the vehicle runs out of gas, or they may hear a fuel slosh or noise from the fuel tank area when braking or accelerating from a stop. Technician will need to inspect the fuel tank baffle for being loose.
PIT4374C2017-08-15. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE; EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that the Power Lift-gate, it will open fully, drop a few inches, then power close. Technician will replace the Lift-gate struts if it will not remain open when opened manually.
PIT3173C2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician that fluid contamination may be directed to one of the following testing centers according to the type of fluid needing testing. Dealer should send the correct fluid to the proper testing center.
PIC4801E2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have an OnStar Turn-By-Turn Navigation the system that is inoperative. Technician verifies there are no Diagnostic Trouble Codes are present in the Antilock Braking System and Vehicle Communication Interface Module of the vehicle. If no Diagnostic Trouble Codes found call OnStar using the Blue button on the OnStar key pad and ask the advisor for a turn by turn route. Also make a OnStar personal call and a call into the vehicle. If normal diagnostics do not lead to a resolution technician will need to call General Motors Technical Assistance Center for further assistance.
PIC4310H2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
PIT4733J2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician that customers may inquire as to the availability of OnStar bluetooth on their vehicle. Technician should be advised that Vehicles with Regular Production Option Code (UPF or UWE) offer Bluetooth through the OnStar system.
PIP3720D2017-08-15. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. 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 backlash it should be set between 0.003? to 0.005? on a new ring and pinion for any American Axle Manufacturing application. The ring and pinion can be reused or adjusted if the mileage is less than 500 miles, if not used for towing. Technician should be advised that a ?roller coaster? or ?hourglass? pattern on the bearings may be normal up to 10,000 miles and possibly longer. With a mis-machined housing you may get a heel pattern on both sides of the gear teeth at build up can generally be corrected with backlash adjustments. When setting up an 8.6? axle with a 5 cut gear set is to use a 0.035? pinion shim and set backlash to 0.004?. When using the newer 2 cut gear set also use a 0.035? pinion shim and still set backlash to 0.004?. To set the gear pattern use backlash to adjust the pattern heel to toe. Use the pinion shim to adjust the height of the pattern. The proper drive pinion bearing pre-load is from 15 - 30 inch pounds with new bearings. The total torque to turn after the differential case is installed should increase 5 - 10 inch pounds at the pinion. A new pinion nut must be used whenever the old one is removed. The axle shaft end play specification is 0.012? per side and the radial specification is 0.002? - 0.003?. Technician should be advised that synthetic lube can be used in all new American Axle Manufacturing axle assemblies. The new pinion seal for the 8.6? axle assembly is a two piece design.
PIT4041D2017-08-15. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY:HATCHBACK/LIFTGATE. This Preliminary Information communication provides information to the technician about vehicles that the power lift gate Regular Production Option Code (E61 or TB5) is inoperative. Technician will find Diagnostic Trouble Code B153A set in the power lift gate control module. Technician will need to perform these steps. 1. Disconnect the connector at the Lift gate Latch Assembly. 2. Install a 3 ampere fused jumper wire between each signal circuit and the ground circuit. 3. If either test fails, check the wiring for the signal circuits, low reference circuit, or try a power lift gate control module from a known good vehicle. 4. If both tests pass, monitor the internal switch inputs in the lift gate latch assembly for proper operation. 5. If one of the internal lift gate latch assembly switch inputs are not reading correctly in one of the positions above and the vehicles passes test both test, replace the Lift Gate Latch Assembly.
PIT4907A2017-08-15. Service bulletin. SERVICE BRAKES. This Preliminary Information communication provides information to the technician about brake rotors on new vehicles and replacement parts from General Motors Service Parts Operations. Technician should be advised the costing should not be removed from the brake rotor it will wear off with normal brake usage. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIC5491A2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down, remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle. If the OnStar system is still inoperative continue with published Service Information diagnostics.
PIC4935D2017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that during battery parasitic drain test, there may be some confusion as to what the normal power consumption reading should be from the OnStar system. Technician should understand the power cycles of the various OnStar systems. All Generation 6, 7, 8, and 9 systems are powered up continuously for 48 hours from ignition off. After 120 hours from ignition off, these systems then completely power off. The Onstar modules draw: * IGN ON - 240 to 400 Milliamp. * IGN OFF - 3 to 20 Milliamp for 48 hours or 120 hours on Gen 9 and vehicle communication platforms. * IGN OFF - 0.2 to 0.8 Milliamp after 48 hours or 120 hours on Gen 9 and vehicle communication platforms.
PIT4089H2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SEATS. This Preliminary Information communication provides information to the technician about vehicles that are unable to set a personalized easy exit seat and/or power tilt column position and they will only move a predetermined amount. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIT3099J2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts. Technician can check Service Information for some accessories. Technician can also contact Partech for assistance.
PIT4271E2017-08-15. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This Preliminary Information communication provides information to the technician that when the remote start feature is used to start the vehicle, the Supplemental Inflatable Restraint light operation in the Instrument Panel Cluster varies depending on the model year. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIT3237F2017-08-15. Service bulletin. VISIBILITY:GLASS, SIDE/REAR; VISIBILITY:WINDSHIELD. This Preliminary Information communication provides information to the technician about the percentage of Ultraviolet protection or tint offered by the windshield or side glass. Technician should be advised Windshield reduces Ultraviolet rays down to 4% or less. Front side door glass reduces Ultraviolet rays down to 35% or less. Windshields are SOLAR glass with a light transmittance of >/=70%. Front door glass are Solar glass with a light transmission of >/=70%. Rear door glass, quarter windows and back windows can use either Solar glass (>/=70%) or Privacy glass, which has a light transmittance of 20%.
PIC57592017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication provides information to the technician about vehicles that have a message on the radio "maximum number of phones are currently paired to the vehicle". Dealer should advise the customer this is normal operation of the vehicle due to the maximum number of five phones can be paired to a vehicle.
PIC5491D2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down, remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle. If the OnStar system is still inoperative continue with published Service Information diagnostics. Technician may need to contact General Motors Technical Assistance Center depending on the STID, Station ID, or OnStar Customer Identifier.
PIT3237G2017-08-15. Service bulletin. VISIBILITY:WINDSHIELD. This Preliminary Information communication provides information to the technician about the percentage of UV protection or tint offered by the windshield or side glass. Technician should be advised Windshield reduces UV rays down to 4% or less. Front side door glass reduces UV rays down to 35% or less. Windshields are SOLAR glass with a light transmittance of >/=70%. Front door glass are Solar glass with a light transmission of >/=70%. Rear door glass, quarter windows and back windows can use either Solar glass (>/=70%) or Privacy glass, which has a light transmittance of 20%.
PIP5029E2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:MECHANICAL. This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Technician will need to perform published Service Information diagnostics. If technician finds carbon an upper engine and valve cleaning should be performed.
PIP51632017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
PIC59322017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about customers that may complain of various concerns when using Bluetooth components. Technician should use the Preliminary Information to gather information from the customer on their Bluetooth device and the concern they are having before calling General Motors Technical Assistance Center.
06-08-50-009I2017-08-15. Service bulletin. SEATS; SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER; AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION. This informational bulletin provides Information on Passenger Presence Sensing System (PPS or PSS) Concerns with Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices
03-08-46-004R2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL. This informational bulletin provides information on Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules (VCIM) (GMNA Only)

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