Technical Service Bulletins (TSB)

BUICK — 3500, 4500 SERIES, 9-3, 9-5, 9-7X, ACADIA, ALERO, ALERO EXPORT, ASCENDER, ASTRA, ASTRO, ATS, AURA, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, B7, B7 MEDIUM DUTY, BLAZER, BOLT EV, BONNEVILLE, BRAVADA, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CATERA, CAVALIER, CENTURY, CHEVY VAN, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CONVENTIONAL, CORVETTE, CRUZE, CT6, CTS, DEVILLE, DTS, ELDORADO, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XL, ENVOY XUV, EPICA, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, F SERIES, F-SERIES, FIREBIRD, G SERIES, G VAN BUS, G3, G5, G6, G8, GM, GRAND AM, GRAND PRIX, GTO, H SERIES, H-SERIES, H2, H3, HHR, HOMBRE, I-290, I-350, IMPALA, INTRIGUE, ION, JIMMY, JIMMY CLASSIC, L SERIES, L200, L300, LACROSSE, LESABRE, LOW CAB 4500, LOW CAB 5500, LUCERNE, LUMINA, LW200, M SERIES, M VAN, M/L VAN, MALIBU, METRO, MONTANA, MONTANA EXT, MONTE CARLO, N-SERIES, N300, N300 MAX, OPTRA, ORLANDO, OUTLOOK, P SERIES, PARK AVENUE, PRIZM, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, RIVIERA, RODEO, S10, SAFARI, SAFARI (GMC), SAVANA, SEVILLE, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILHOUETTE, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 3500 HD, SKY, SL, SOLSTICE, SONIC, SONOMA, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUNFIRE, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRACKER, TRAILBLAZER, TRANS SPORT, TRAVERSE, TRAX, TROOPER, UPLANDER, V SERIES, VENTURE, VERANO, VIBE, VOLT, VUE, W SERIES, W-SERIES, XL7, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2000–2018) — 1198 vehicle combinations

063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

This preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks using the evaporative emission cart smoke machine and ultrasonic leak detector tools.

BUICK — ATS, CTS, REGAL, TERRAIN, XTS (2018–2019) — 10 vehicle combinations

353400 EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

This Preliminary information communicates information on 3 IPC Speedlimit concerns. Displayed speed limit is stuck on a value, not updating as the roadway speed limit changes. 2. Speed limit displays no value or is blank. 3. The speed

BUICK — CRUZE, ENCORE, SONIC, TRAX (2011–2019) — 28 vehicle combinations

060000 ENGINE (PWS)

This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have excessive oil consumption, blue smoke from the exhaust, or a Malfunction Indicator Lamp. Technician sho

BUICK — ATS, CTS, MALIBU, REGAL (2014) — 20 vehicle combinations

063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

Special Coverage. Some vehicles equipped with a 2.0L turbo engine, may have a condition where a wire within the exhaust camshaft position actuator solenoid valve may break. If this were to occur, the Malfunction Indicator Lamp would illum

BUICK — ALLURE, GRAND PRIX, IMPALA, LACROSSE, MONTE CARLO (2004–2018) — 74 vehicle combinations

070000 FUEL SYSTEM, GASOLINE

This PI offers diagnostic tips to a technician when diagnosing a possible fuel level sensor concern. The tech is advised to ohm test the sensor at the terminals located on top of the fuel module while performing a sweep test. If the test fa

BUICK — IMPALA, LACROSSE, MALIBU, REGAL, XTS (2010–2019) — 78 vehicle combinations

160000 STRUCTURE

This Preliminary Information communication provides the technician with the steps to diagnose and repair the concern of mildew odor or water on front floor on either side of the vehicle. Technician will gain access to the front wheelhouse o

BUICK — ACADIA, ENCLAVE, TRAVERSE (2013–2014) — 6 vehicle combinations

060000 ENGINE (PWS)

This Preliminary information communicates information for diagnosing dtc?s P0689 and/or P1682 and the possibility of arcing/corrosion on terminal 51 of the X3 connector at the UBEC.

BUICK — 3500, 4500 SERIES, 9-3, 9-5, 9-7X, ACADIA, ALERO, ALERO EXPORT, ASTRA, ASTRO, ATS, AURA, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BOLT EV, BONNEVILLE, BRAVADA, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CAVALIER, CENTURY, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CONVENTIONAL, CORVETTE, CRUZE, CT6, CTS, DEVILLE, DTS, ELDORADO, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XL, ENVOY XUV, EPICA, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, F SERIES, FIREBIRD, G SERIES, G VAN BUS, G3, G5, G6, G8, GENERAL MOTORS, GM, GRAND AM, GRAND PRIX, GTO, H SERIES, H2, H3, HHR, IMPALA, INTRIGUE, ION, JIMMY, JIMMY CLASSIC, L SERIES, L200, L300, LACROSSE, LESABRE, LOW CAB 4500, LOW CAB 5500, LUCERNE, LUMINA, LW200, M SERIES, MALIBU, MONTANA, MONTANA EXT, MONTE CARLO, N300, N300 MAX, OPTRA, ORLANDO, OUTLOOK, PARK AVENUE, PRIZM, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, S10, SAFARI, SAVANA, SEVILLE, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILHOUETTE, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SKY, SL, SOLSTICE, SONIC, SONOMA, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUNFIRE, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRACKER, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VENTURE, VERANO, VIBE, VOLT, VUE, W-SERIES, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2002–2018) — 945 vehicle combinations

353400 EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles. A dealer or customer can access the website listed below for vehicle specific XM offerings and availabilit

BUICK — ENCORE, TRAX (2016–2019) — 8 vehicle combinations

350000 EQUIPMENT

This Preliminary information communicates the location of the antenna during the Pre-Delivery Inspection process. Technician will find the antenna on the left hand trim pocket.

BUICK — LACROSSE (2017–2019) — 6 vehicle combinations

060000 ENGINE (PWS)

This Preliminary information communicates that a customer may bring a vehicle in with a complaint that the engine rpm increased and/or the vehicle downshifted for no reason. The dealer is instructed to test drive the vehicle and check for c

BUICK — ACADIA, ATS, CT6, CTS, ENVISION, EQUINOX, LACROSSE, TERRAIN, XT4, XT5, XTS (2015–2019) — 74 vehicle combinations

220000 SEATS

This Preliminary Information communicates to the technician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep

BUICK — BRAVADA, ENVOY, RAINIER, TRAILBLAZER (2002–2004) — 20 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates a change in software in the PDM to prevent "wandering mirrors".

BUICK — CT6, LACROSSE, MALIBU (2016–2019) — 20 vehicle combinations

185000 VEHICLE SPEED CONTROL:CRUISE CONTROL

This Preliminary information communicates that a vehicle may exhibit a Adaptive Cruise Control Unavailable and/or Lane Keep Assist Unavailable message. The technician may attempt to program the Active Safety Control Module (ASCM) and encoun

BUICK — CRUZE, ENCORE, SONIC, TRAX (2011–2019) — 28 vehicle combinations

060000 ENGINE (PWS)

This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided

BUICK — ATS, CT6, CTS, ENCLAVE, LACROSSE, REGAL, TRAVERSE, XT5 (2016–2019) — 24 vehicle combinations

060000 ENGINE (PWS)

This Preliminary information communicates there is an investigation into cause and correction for this group of DTC's setting together. (P0011, P0014, P0021, P0024). Revised to include the possibility of setting in pairs and some drivabili

BUICK — ACADIA, ENCLAVE, EQUINOX, SIERRA 1500, SILVERADO 1500, TERRAIN, TRAVERSE (2018–2019) — 63 vehicle combinations

110000 ELECTRICAL SYSTEM

This technical bulletin proves a procedure to update the rear infotainment monitors if found the cause of the audio concerns.

BUICK — ATS, CAMARO, CT6, CTS, EQUINOX, MALIBU, REGAL, TERRAIN, TRAVERSE (2013–2018) — 30 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This preliminary informational bulletin provides repair information for a customer concern of an engine runs rough with the Check Engine Light (CEL) on/low compression on cylinder with misfire. A technician may find DTC P0300 set.

BUICK — CRUZE, ELR, ENCORE, SONIC, TRAX, VOLT (2013–2015) — 34 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This preliminary informational bulletin provides diagnostic tips that may be helpful in correcting a customer concern about a whistle noise heard from the engine area after the vehicle has warmed up, or for up to 10 seconds after the engine

BUICK — ACADIA, ALLURE, ATS, AURA, CAMARO, CAPRICE POLICE PURSUIT, CAPTIVA SPORT, CTS, ENCLAVE, EQUINOX, G6, G8, IMPALA, LACROSSE, MALIBU, OUTLOOK, SRX, STS, TERRAIN, TORRENT, TRAVERSE, VUE, XTS (2004–2016) — 140 vehicle combinations

060000 ENGINE (PWS)

This Preliminary Information communication provides information to the technician about vehicles that have a ticking noise on cold start after sitting more than 6 hours. Technician will inspect the oil pump pick-up tube to block seal being

BUICK — IMPALA, LACROSSE (2012–2019) — 20 vehicle combinations

134000 VISIBILITY:SUN/MOON ROOF ASSEMBLY

This preliminary bulletin provides a procedure to replace the sunroof sunshade if it binds or doesn't retract properly.

BUICK — LACROSSE, MALIBU, REGAL (2016–2019) — 27 vehicle combinations

021000 SUSPENSION:FRONT

This technical bulletin provides a procedure to correct the condition of Front End Rattle Noise when Braking Moderate or Hard on Rough Surfaces.

BUICK — ACADIA, ENCLAVE, TRAVERSE, XT5 (2019) — 4 vehicle combinations

105500 POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

This technical bulletin provides a procedure to replace the rear diff assembly if the oil has leaked into the torque tube causing the rear diff to fail.

BUICK — ENCORE, TRAX (2013–2015) — 12 vehicle combinations

110000 ELECTRICAL SYSTEM

This bulletin provides a procedure to reprogram the ECM to correct a condition of MIL On, DTC P0420 Set.

BUICK — CRUZE, ENCORE, SONIC, TRAX (2011–2019) — 84 vehicle combinations

060000 ENGINE (PWS)

This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have excessive oil consumption, blue smoke from the exhaust, or a Malfunction Indicator Lamp. Technician sho

BUICK — LACROSSE (2018–2019) — 6 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary Information communication provides information to the technician about vehicles that may have Circular Distortion in the Circle Icons and the Buick Tri-Shield Start Up Screen on the radio display. Dealer should advise the c