Technical Service Bulletins (TSB)

BUICK — BLAZER, CAMARO, CANYON, COLORADO, CRUZE, ENCORE, EQUINOX, MALIBU, REGAL, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SONIC, TERRAIN, TRAX (2018–2019) — 60 vehicle combinations

010000 STEERING

This informational bulletin provides information for the customer to pair their phone in order for the push to talk button on the steering wheel control to work.

BUICK — ATS, CAMARO, COLORADO, CORVETTE, CRUZE, CT6, CTS, ENCLAVE, ENVISION, EQUINOX, ESCALADE, EXPRESS, LACROSSE, MALIBU, REGAL, SAVANA, SIERRA 3500, SILVERADO 2500, TAHOE, TERRAIN, TRAVERSE, YUKON (2018) — 44 vehicle combinations

100000 POWER TRAIN

This Preliminary Information communication advises the technician that the Product Quality Center has a part restriction for the T87A Transmission Control Module. The dealer technician is advised to call the GM Product Quality Center for fu

BUICK — ACADIA, ATS, AVALANCHE, BOLT EV, CAMARO, CANYON, CASCADA, COLORADO, CORVETTE, CRUZE, CT6, CTS, DTS, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE ESV, LACROSSE, OUTLOOK, REGAL, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SONIC, SRX, STS, SUBURBAN, TAHOE, TERRAIN, TRAVERSE, TRAX, VERANO, VOLT, XT5, XTS, YUKON DENALI, YUKON XL (2005–2018) — 524 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble

BUICK — ACADIA, ATS, CT6, CTS, ENVISION, EQUINOX, LACROSSE, TERRAIN, XT5, XTS (2015–2018) — 52 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary Information communicates to thetechnician 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 — ACADIA, CT6, ENCLAVE, ENVISION, EQUINOX, LACROSSE, TERRAIN, XT5 (2017–2018) — 13 vehicle combinations

118000 ELECTRICAL SYSTEM:SOFTWARE

This Preliminary information communicates to the technician, that they may be working on a concern of a Service Driver Assist System Message with B172E stored in history Do not replace any parts. Engineering is aware of the issue and a new

BUICK — ACADIA, CRUZE, ENCLAVE, EQUINOX, TERRAIN, TRAVERSE (2014–2018) — 18 vehicle combinations

063130 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

This informational bulletin explains a normal small exhaust leak and residual build up on the EGR housing.

BUICK — EQUINOX, LACROSSE, MALIBU, TERRAIN (2016–2020) — 35 vehicle combinations

030000 SERVICE BRAKES, HYDRAULIC

This Technical bulletin provides information for rear brake pad replacement to correct a squeak type noise heard from the rear brakes when cold.

BUICK — ACADIA, ALLURE, ATS, AURA, CAMARO, CANYON, COLORADO, CTS, ENCLAVE, EQUINOX, G6, G8, IMPALA, LACROSSE, MALIBU, OUTLOOK, SRX, STS, TERRAIN, TORRENT, TRAVERSE, VUE (2007–2018) — 130 vehicle combinations

060000 ENGINE (PWS)

This Preliminary information communicates the identification process for High Feature V6 camshafts in re-manufactured engines.

BUICK — BOLT EV, CRUZE, ENCLAVE, ENVISION, LACROSSE (2016–2018) — 11 vehicle combinations

171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH

This informational bulletin provides information for dealers/technicians on an outside door handle or lock cylinder cover being loose, or falling off.

BUICK — ENCLAVE (2018)

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This informational bulletin provides information on how to contact and when to contact TAC with issues involving the Buick Enclave.

BUICK — ACADIA, BLAZER, CAMARO, CORVETTE, ENCLAVE, TRAVERSE, XT5, XT6 (2012–2021) — 492 vehicle combinations

030000 SERVICE BRAKES, HYDRAULIC

This bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking.

BUICK — 3500, ACADIA, ASTRA, ATS, AVALANCHE, AVEO, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CITY EXPRESS, COLORADO, CORVETTE, CRUZE, CT6, CTS, DTS, ELR, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G3, G5, HHR, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LUCERNE, MALIBU, N300, N300 MAX, OUTLOOK, REGAL, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, VUE, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2011–2018) — 326 vehicle combinations

118000 ELECTRICAL SYSTEM:SOFTWARE

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 contro

BUICK — BOLT EV, EQUINOX, LACROSSE, TERRAIN, XT5 (2017–2018) — 8 vehicle combinations

103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

This informational bulletin advised the technician not to do anything about the DTC set.

BUICK — ENCLAVE, TRAVERSE (2018) — 9 vehicle combinations

030000 BRAKES (PWS)

This technical bulletin provides a procedure to replace the power brake booster vacuum check valve and hose to correct a condition of Intermittent Service Power Brake Assist Message With a Brake Shudder and Possible DTC P0557 Set/Stored due

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, 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, 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, LS, LUCERNE, LUMINA, LW200, M SERIES, MALIBU, MONTANA, MONTANA EXT, MONTANA SV6, 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 3500, 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, XL7, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2002–2018) — 2787 vehicle combinations

110000 ELECTRICAL SYSTEM

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 — ENVISION, ESCALADE, SIERRA, SIERRA 1500, SIERRA 3500, SILVERADO, SILVERADO 1500, SILVERADO 2500, SUBURBAN, TAHOE (2014–2018) — 25 vehicle combinations

111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY

This Preliminary Information communication provides information to the technician the steps to diagnose and repair the concern of the display is showing 32° F (0° C) after a battery or reprogramming a module. The outside temperature

BUICK — IMPALA, LACROSSE, MALIBU, REGAL, XTS (2010–2017) — 26 vehicle combinations

162000 STRUCTURE:BODY

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 — ALERO, AURA, C SERIES, CAPTIVA, CAVALIER, COBALT, EQUINOX, G5, G6, GRAND AM, HHR, IMPALA, ION, LACROSSE, LS, MALIBU, PURSUIT, REGAL, SKY, SOLSTICE, SUNFIRE, TERRAIN, VERANO, VUE (2001–2017) — 123 vehicle combinations

162800 STRUCTURE:BODY:HOOD

This Preliminary Information communication provides information to the technician about vehicles that have a loud tick or rattle noise under the hood at all operating conditions. Technician will need to check the lower and oil pressure to t

BUICK — ENCLAVE, TRAVERSE (2018) — 2 vehicle combinations

110000 ELECTRICAL SYSTEM

This Technical bulletin provides a procedure to install a twisted 3 jumper harness to address a Service AWD Message on DIC with DTCs C1266 or C1267.

BUICK — CT6, LACROSSE, MALIBU (2016–2018) — 7 vehicle combinations

118000 ELECTRICAL SYSTEM:SOFTWARE

This Preliminary information communicates thata 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 encount

BUICK — EQUINOX, LACROSSE, MALIBU (2016–2018) — 24 vehicle combinations

034520 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS

Rear Brake Squeak Type Noise Condition Some customers may comment on a squeak type noise heard from the rear brakes when cold. This noise will typically occur on first brake apply when the brakes are cold. Note: This condition may not b

BUICK — 3500, 4500 SERIES, 4500HD, 4500XD, 5000 SERIES, 5500HD, 5500XD, 9-2X, 9-3, 9-4X, 9-5, 9-7X, ACADIA, ALERO, ALLURE, AMPERA, ASTRA, ASTRO, ATS, ATS-V, AURA, AURA HYBRID, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BOLT EV, BONNEVILLE, BRAVADA, C SERIES, C3500, C4500, C5500, C6500, C7500, C8500, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CATERA, CAVALIER, CENTURY, CHEVY VAN, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COBALT SS, COLORADO, CONVENTIONAL, CORVETTE, CORVETTE Z06, CORVETTE ZR1, CRUZE, CT6, CTS, CTS-V, DENALI, DEVILLE, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY 360, ENVOY DENALI, ENVOY DENALI XL, ENVOY XL, ENVOY XL 370, ENVOY XUV, EPICA, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, ESCALADE HYBRID, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY, EXPRESS CUTAWAY VAN, F SERIES, FVR, FXR, G SERIES, G VAN BUS, G1500, G2500, G3, G3500, G4, G4500, G5, G6, G8, GRAND AM, GRAND PRIX, GT, GTO, H SERIES, H1, H2, H2 SUT, H3, H3 SUT, H4, HHR, HTR, HVR, HXR, IMPALA, IMPALA (GMX 211), INCOMPLETE/CUTAWAY C3, INSIGNIA, ION, JIMMY, JIMMY CLASSIC, L SERIES, L200, L300, LACROSSE, LESABRE, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LS, LUCERNE, LUMINA, LW200, MALIBU, MALIBU CLASSIC, MALIBU ECO, MALIBU HYBRID, MALIBU MAXX, MONTANA, MONTANA EXT, MONTE CARLO, N300, N300 MAX, OPTRA, ORLANDO, OUTLOOK, PARK AVENUE, PURSUIT, RAINIER, REGAL, REGAL TOURX, RELAY, RENDEZVOUS, S/T BLAZER, S10, SAFARI, SAFARI (GMC), SANANA, SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SAVANNA, SEVILLE, SIERRA, SIERRA 1500, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA 3500, SIERRA DENALI, SILHOUETTE, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SKY, SLS, SOLSTICE, SONIC, SONOMA, SONOMA CREW, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, SUNFIRE, T SERIES, T4500, T6500, T7500, T8500, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TERRAZA, TOPKICK, TOPKICK 6500, TOPKICK 8500, TORRENT, TRACKER, TRAILBLAZER, TRAILBLAZER 360, TRAILBLAZER EXT, TRAILBLAZER EXT 370, TRANS SPORT, TRAVERSE, TRAX, UPLANDER, VAUXHALL, VECTRA, VENTURE, VERANO, VIBE, VOLT, VUE, VUE HYBRID, W SERIES C3 3500, W-SERIES, W3500, W4500, W5500, W5500HD, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500, YUKON XL DENALI (2003–2018) — 5476 vehicle combinations

021300 SUSPENSION:FRONT:SHOCK ABSORBER

Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify the differences between what is considered a fluid leak and what is considered seepage. Improper diagnosis may lead to un

BUICK — ACADIA, ENCLAVE, EQUINOX, TERRAIN, TRAVERSE (2014–2018) — 46 vehicle combinations

090000 FUEL SYSTEM, OTHER

Engineering Information ? Malfunction Indicator Lamp (MIL) On, DTCs P0171 Fuel Trim System Lean Bank 1 and/or P0174 Fuel Trim System Lean Bank 2

BUICK — ENCLAVE (2018) — 2 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

TAC Action Center Established for Buick Enclave (U.S. Only)

BUICK — 3500, 4500 SERIES, 4500HD, 4500XD, 5000 SERIES, 5500HD, 5500XD, 9-2X, 9-3, 9-4X, 9-5, 9-7X, ACADIA, ALERO, ALLURE, AMPERA, ASTRA, ASTRO, ATS, ATS-V, AURA, AURA HYBRID, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BOLT EV, BONNEVILLE, BRAVADA, C SERIES, C3500, C4500, C5500, C6500, C7500, C8500, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CAVALIER, CENTURY, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COBALT SS, COLORADO, CORVETTE, CORVETTE Z06, CORVETTE ZR1, CRUZE, CT6, CTS, CTS-V, DENALI, DEVILLE, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY 360, ENVOY DENALI, ENVOY DENALI XL, ENVOY XL, ENVOY XL 370, ENVOY XUV, EPICA, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, ESCALADE HYBRID, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY, EXPRESS CUTAWAY VAN, F SERIES, FVR, FXR, G VAN BUS, G1500, G2500, G3, G3500, G4, G4500, G5, G6, G8, GRAND AM, GRAND PRIX, GT, GTO, H SERIES, H2, H2 SUT, H3, H3 SUT, H4, HHR, HTR, HVR, HXR, IMPALA, IMPALA (GMX 211), INCOMPLETE/CUTAWAY C3, INSIGNIA, ION, JIMMY, JIMMY CLASSIC, L200, L300, LACROSSE, LESABRE, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, LUMINA, LW200, MALIBU, MALIBU CLASSIC, MALIBU ECO, MALIBU HYBRID, MALIBU MAXX, MONTANA, MONTANA EXT, MONTE CARLO, N300, N300 MAX, OPTRA, ORLANDO, OUTLOOK, PARK AVENUE, PURSUIT, RAINIER, REGAL, REGAL TOURX, RELAY, RENDEZVOUS, S/T BLAZER, S10, SAFARI, SAFARI (GMC), SANANA, SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SAVANNA, SEVILLE, SIERRA, SIERRA 1500, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA 3500, SIERRA DENALI, SILHOUETTE, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SKY, SLS, SOLSTICE, SONIC, SONOMA, SONOMA CREW, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, SUNFIRE, T SERIES, T4500, T6500, T7500, T8500, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TERRAZA, TOPKICK, TOPKICK 6500, TOPKICK 8500, TORRENT, TRACKER, TRAILBLAZER, TRAILBLAZER 360, TRAILBLAZER EXT, TRAILBLAZER EXT 370, TRANS SPORT, TRAVERSE, TRAX, UPLANDER, VAUXHALL, VENTURE, VERANO, VIBE, VOLT, VUE, VUE HYBRID, W SERIES C3 3500, W-SERIES, W3500, W4500, W5500, W5500HD, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2004–2018) — 4302 vehicle combinations

060000 ENGINE (PWS)

Essential Tools that Include Consumable Parts (U.S. Only)