Technical Service Bulletins (TSB)

BUICK — 3500, ACADIA, ATS, AVALANCHE, AVEO, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CASCADA, CHEYENNE, CITY EXPRESS, COLORADO, CORVETTE, CRUZE, CT6, CTS, ELR, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, MALIBU, N300, N300 MAX, ORLANDO, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SONIC, SPARK, SPARK EV, SRX, SS, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2013–2018) — 540 vehicle combinations

180000 VEHICLE SPEED CONTROL

This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.

BUICK — ENCORE (2018–2019) — 4 vehicle combinations

060000 ENGINE (PWS)

This technical bulletin provides repair information to correct a customer concern of malfunction indicator lamp (MIL) on, whistle type noise at startup, DTC P1101 set.

BUICK — ACADIA, ENCLAVE, EQUINOX, TERRAIN, TRAVERSE, XT5 (2019) — 6 vehicle combinations

060000 ENGINE AND ENGINE COOLING

Some customers may note a Check Engine Light related to the evaporative emission canister performance. Technicians may find the following DTCs set: ? P0442 ? P0455 ? P0446 ? P0449 ? P0498 This engineering informational bulletin is

BUICK — REGAL (2018–2019) — 2 vehicle combinations

110000 ELECTRICAL SYSTEM

This technical bulletin provides repair information to correct a customer concern of OnStar Hands Free Calling Missing Icon and Inoperative (Canada Only).

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, 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, 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, LUCERNE, LUMINA, LW200, M SERIES, M VAN, M/L VAN, MALIBU, METRO, MONTANA, MONTANA EXT, MONTE CARLO, N300, N300 MAX, OPTRA, ORLANDO, OUTLOOK, P SERIES, PARK AVENUE, PRIZM, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, RIVIERA, S10, SAFARI, SAFARI (GMC), SAVANA, SEVILLE, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILHOUETTE, SILVERADO, 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, UPLANDER, V SERIES, VENTURE, VERANO, VIBE, VOLT, VUE, W SERIES, W-SERIES, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2000–2018) — 1076 vehicle combinations

350000 EQUIPMENT

This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits. Technicians should refer to Service Information for information regarding most accessories. Technician

BUICK — LACROSSE, MALIBU, VOLT (2016–2019) — 11 vehicle combinations

103000 POWER TRAIN:AUTOMATIC TRANSMISSION

This Preliminary Information communication provides information to the technician about vehicles that have a Shift to Park message on the Driver Information Center. Technician will find Diagnostic Trouble Codes P1AEE, P1AEF, P1AF0, P1AF2, a

BUICK — ACADIA, ATS, CAMARO, CANYON, CAPTIVA, CAPTIVA SPORT, COLORADO, CTS, ENCLAVE, EQUINOX, IMPALA, LACROSSE, SRX, TERRAIN, TRAVERSE, XTS (2010–2020) — 98 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped fo

BUICK — ACADIA, BOLT EV, CT6, ESCALADE ESV, LACROSSE, MALIBU, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 4500HD, SUBURBAN, TAHOE, XT5, YUKON DENALI (2014–2019) — 54 vehicle combinations

270000 LANE DEPARTURE

This Preliminary Information communication provides information to the technician about vehicles that may have Service Front Camera, Service Lane Departure Warning, and Service Lane Keep Assist Message. Technician may find Diagnostic Troubl

BUICK — CANYON, COLORADO, ENVISION, EQUINOX, TERRAIN (2018–2019) — 10 vehicle combinations

030000 BRAKES (PWS)

This preliminary information discusses potential for a code C0010.5A to store in the brake controller which appears to be setting falsely and advises engineering is investigating the concern.

BUICK — 9-7X, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVEO, BLAZER, BOLT EV, C SERIES, CAMARO, CANYON, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G VAN BUS, G3, G5, G6, G8, GRAND PRIX, GTO, H2, H3, HHR, IMPALA, ION, LACROSSE, LESABRE, LUCERNE, MALIBU, MONTANA, MONTE CARLO, OUTLOOK, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VERANO, VIBE, VOLT, VUE, W-SERIES, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2006–2020) — 1336 vehicle combinations

350000 EQUIPMENT

The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

BUICK — REGAL (2019)

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

This Preliminary information communicates information regarding a radio software concern that efffects OnStar handsfree calling selection missing from the radio display.

BUICK — 3500, 4500 SERIES, 9-2X, 9-3, 9-5, 9-7X, ACADIA, ALERO, ALERO EXPORT, ASTRA, ASTRO, ATS, AURA, AURORA, AVALANCHE, AVEO, AZTEK, BLAZER, BOLT EV, BONNEVILLE, BRAVADA, C SERIES, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CATERA, CAVALIER, CENTURY, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, DEVILLE, DTS, ELDORADO, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XUV, EPICA, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, 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, LOW CAB FORWARD 6500, 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 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILHOUETTE, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, 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, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2002–2020) — 1988 vehicle combinations

110000 ELECTRICAL SYSTEM

This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.

BUICK — 3500, 9-3, 9-5, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVEO, BLAZER, BOLT EV, C SERIES, CAMARO, CANYON, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CHEYENNE, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G5, G6, G8, GRAND PRIX, H SERIES, H2, H3, HHR, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, MALIBU, MONTANA, N300, N300 MAX, ORLANDO, OUTLOOK, PURSUIT, REGAL, RELAY, S10, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VERANO, VIBE, VOLT, VUE, W-SERIES, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2008–2020) — 1114 vehicle combinations

070000 FUEL SYSTEM, GASOLINE

This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.

BUICK — ACADIA, AVALANCHE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, ENCLAVE, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, LACROSSE, REGAL, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SRX, SUBURBAN, TAHOE, TERRAIN, TRAVERSE, TRAX, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2007–2020) — 179 vehicle combinations

010000 STEERING

This technical bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern that is caused during extremely low temperatures.

BUICK — 9-3, 9-5, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVEO, BLAZER, BOLT EV, CAMARO, CANYON, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CHEYENNE, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, DTS, ELR, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G3, G5, G6, G8, H2, H3, HHR, IMPALA, LACROSSE, LUCERNE, MALIBU, N300, N300 MAX, ORLANDO, OUTLOOK, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VIBE, VOLT, VUE, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2010–2020) — 938 vehicle combinations

350000 EQUIPMENT

This informational bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.

BUICK — CASCADA, CRUZE, MALIBU, TERRAIN (2017–2019) — 15 vehicle combinations

110000 ELECTRICAL SYSTEM

N182198330 - Service Update - Certain 2017 and 2019 model year Chevrolet Cruze vehicles, 2018 model year Chevrolet Malibu vehicles, 2018 model year GMC Terrain vehicles, and 2019 model year Buick Cascada vehicles may have been built with an

BUICK — ACADIA, ATS, AVALANCHE, BLAZER, CAMARO, CANYON, CAPRICE POLICE PURSUIT, CASCADA, CITY EXPRESS, COLORADO, CORVETTE, CRUZE, CT6, CTS, DTS, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G8, GRAND PRIX, H2, H3, IMPALA, LACROSSE, LUCERNE, MALIBU, N300 MAX, REGAL, S10, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SPARK, SRX, SS, STS, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, XT4, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2005–2019) — 706 vehicle combinations

060000 ENGINE (PWS)

This informational bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.

BUICK — 3500, 4500HD, 5500HD, ACADIA, ATS, AVALANCHE, AVEO, BLAZER, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G VAN BUS, G3, G8, H2, HHR, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, MALIBU, N300, N300 MAX, ORLANDO, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TOPKICK, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, W-SERIES, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2010–2022) — 2090 vehicle combinations

060000 ENGINE (PWS)

This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.

BUICK — CASCADA (2016–2019) — 4 vehicle combinations

160000 STRUCTURE

This technical bulletin provides repair information for replacement of the folding top cover to correct a customer concern for pierced holes appearing in the sail panel area on one or both sides of the vehicle.

BUICK — ACADIA, ENCLAVE, OUTLOOK, TRAVERSE (2007–2017) — 34 vehicle combinations

010000 STEERING

This technical bulletin provides a procedure to replace the steering gear bushings if found the cause of the customers concern.

BUICK — AVEO, CAMARO, CRUZE, LACROSSE, VOLT (2006–2013) — 24 vehicle combinations

110000 ELECTRICAL SYSTEM

This informational bulletin provides information on how to determine whether or not an airbag module is counterfeit or not and what to do if a counterfeit airbag is found.

BUICK — ACADIA, ATS, AURA, CAMARO, CANYON, COLORADO, CTS, ENCLAVE, EQUINOX, G6, G8, IMPALA, LACROSSE, MALIBU, OUTLOOK, SRX, STS, TERRAIN, TORRENT, TRAVERSE, VUE, XTS (2007–2019) — 140 vehicle combinations

060000 ENGINE AND ENGINE COOLING

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

BUICK — AVALANCHE, CORVETTE, CTS, DTS, ESCALADE, ESCALADE ESV, ESCALADE EXT, LUCERNE, SRX, STS, SUBURBAN, TAHOE, XLR, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2003–2014) — 360 vehicle combinations

020000 SUSPENSION

This preliminary information bulletin provides a procedure for suspension connector diagnosis and replacement due to the magnetically controlled suspension electrical connector not seated.

BUICK — ACADIA, ATS, CAMARO, CANYON, COLORADO, CTS, ENCLAVE, EQUINOX, G8, LACROSSE, OUTLOOK, SRX, STS, TERRAIN, TORRENT, TRAVERSE, VUE, XTS (2004–2019) — 129 vehicle combinations

070000 FUEL SYSTEM, GASOLINE

This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Code P2097 or P2099. Technician will nee

BUICK — ACADIA, ENCLAVE, TRAVERSE, XT5 (2018) — 12 vehicle combinations

110000 ELECTRICAL SYSTEM

This technical bulletin provides a procedure to locate a possible leak at the receiver dehydrator plug and to only replace the plug if the cause for the customers concern.