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Service bulletins for the 2013 Buick LaCrosse

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.

1951 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
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.
PIP4902D2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
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.
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%.
PIT5076C2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT:ELECTRICAL; STEERING:ELECTRIC POWER ASSIST SYSTEM. This Preliminary Information communication advises the technician to insure that global diagnostic service 2 diagnostic packages are up to date prior to learning the steering angle sensor for a diagnostic trouble code C710 symptom code 71 set in the electronic brake control module or the power steering control module. When rechecking for diagnostic trouble codes a U0074 U0077, U0180D, U01293, U0126, U0125, C0186, C0196, or C0287 are set and will not clear diagnose the Chassis bus. If no fault is found in the chassis bus check for an multiple diagnostic interface to data link connector issue. Technician is to try a different multiple diagnostic interface cable and attempt the steering angle sensor learn again following service information instruction then try to clear the codes again.
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.
PIC5722A2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about customers that may comment of no map DVD, Compact Flash Card, or SD card supplied with the vehicle. Dealer should advise the customer that the map data is stored internal to the radio.
PIP51622017-08-15. Service bulletin. EQUIPMENT:MECHANICAL; ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Code P0011 and or P0014. Technician will need to remove the camshaft solenoids and inspect the screens for debris. Technician will need to clean off the screens with brake cleaner if debris is present. If code resets or the screen did not have debris on them, remove the camshaft actuator associated with the Diagnostic Trouble Codes and with light air pressure, blow out the oil passages through the camshaft actuator solenoid port. Lubricate the camshaft solenoid seal(s) with clean engine oil and reinstall and install a new camshaft actuator associated with the Diagnostic Trouble Code.
PIC58622017-08-15. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM; EXTERIOR LIGHTING:BRAKE LIGHTS. This Preliminary Information communication provides information to the technician about vehicles that have brake lights remain on with the vehicle off and parked and/or the vehicle battery goes dead. Technician will need to inspect for aftermarket parts.
PIP4959D2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This Preliminary Information communication provides information to the technician with information regarding high misfire rates always on #1 cylinder. A customer may complain of misfires or roughness on cold start up with a P0300 diagnostic trouble code. Technician is to add coolant dye to the system and run the engine through warm up to circulate the dye. Pressurize the cooling system after a cold soak and inspect the cylinder with a bore scope for coolant dye. Dye is used to identify coolant over residual fuel being that might be left in the cylinder. The technician is not to replace the cylinder head as it will not correct this concern. In some cases it is necessary to remove the head for inspection. Do not replace the engine for small surface pock marks or a pitting appearance this is normal and do not connect to coolant passages. Usually if porosity is present there will be a break in the carbon ring. Only replace the engine if true porosity is found. Technician is to call Product Quality Center with the latest version of bulletin 02-07-30-029 if porosity is found and engine replacement is required.
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.
PIC5492B2017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D-37 history in the Vehicle Communication Interface Module or telematics communication interface control module. Engineering has determined that this code will only display in history on the scan tool and will not cause issues with OnStar system operation.
PIT52362017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Technician will need to call General Motors Technical Assistance Center for further assistance. If the Diagnostic Trouble Code B101D has a sym 37 set please refer to the latest version of PIC5492.
PIP5095B2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon and may also have an oil or coolant leak. Technician may find coolant or oil in a spark plug tube. If the Spark Plug Tube is leaking and it is determined that the oil or coolant is not coming from a leak above the spark plug then replace the cylinder Head, spark plug and coil.
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%.
PIT5063D2017-08-15. Service bulletin. STEERING:GEAR BOX (OTHER THAN RACK AND PINION); STEERING. This Preliminary Information communication provides information to the technician with a diagnostic tip service steering message or service stability message. Technician may find a Diagnostic Trouble Code C056E Sym 42 and a Diagnostic Trouble Code C0569 Sym 3A setting after a new steering gear assembly was installed. If Diagnostic Trouble Code C0710 Sym 71 is set it must be addressed firth before performing a steering gear "set-up" in Service Programming System. Steering Angle Sensor module Diagnostic Trouble Code C056D Sym 00 and it must be address first. Technician should be advised that Diagnostic Trouble Codes DTC C056E Sym 42 or C0569 Sym 3A will set when a steering gear assembly was replaced without Service Programming System programming.
PIC5720A2017-08-15. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. This Preliminary Information communication provides information to the technician on the steps needed to diagnose and repair vehicles that may have buzz or hum noise is heard in the right front at times. Also may have a Antilock Braking System Malfunction Indicator Lamp, Service Brake Assist Message or Service Engine Soon Malfunction Indicator Lamp may be displayed. The following Diagnostic Trouble Code may be set C027B, C0040 and P0CBE. The technician will inspect for the wire harness under the hood to be contacting the crank pulley, air conditioning compressor pulley or accessory drive belt due to misrouting or not secured properly. Repair wiring as needed or replace the harness, correct routing and properly secure. Once wiring repairs are complete confirm proper brake booster vacuum pump operation.
PIC5611B2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; BACK OVER PREVENTION: CAMERA SYSTEM. This Preliminary Information communication provides information to the technician about the rear view camera options on the vehicles equipped with rear view camera. The rear view camera brightness can be adjusted on some models while the transmission is in reverse and using the Menu or Select button. To turn off or on the guidelines in the rear view camera, use the radio display Config icon then Display, then the guidelines option.
PIC5652B2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that may have a Diagnostic Trouble Code U0121 in the Multi-axis Acceleration Sensor Module in history. This is a characteristic of normal operation do not replace any components for this concern.
PIC5805C2017-08-15. Service bulletin. STEERING:GEAR BOX (OTHER THAN RACK AND PINION); STEERING:ELECTRIC POWER ASSIST SYSTEM. This Preliminary Information communication advises the technician that the part restriction on the electric power steering gear part numbers: 22978626, 22978628, 23153512, and 23153513 has ended.
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.
PIT4911V2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
PIC5852A2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that when attempting to start vehicle "No Fob Detected" message is displayed. Technician will find the Key FOB works and the vehicle will start with the key FOB is placed in the pocket. Technician will need to replace the Key FOB with the Key FOB with Passive Entry Passive Start.
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.

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