Technical Service Bulletins (TSB)

BUICK — ACADIA, ENCLAVE, TRAVERSE (2017–2019) — 7 vehicle combinations

134000 VISIBILITY:SUN/MOON ROOF ASSEMBLY

This Preliminary information communicates information to let dealers know that the sunshade catch is available and not to replace sunroof housing.

BUICK — ACADIA, ATS, CAMARO, CANYON, CAPRICE, COLORADO, CORVETTE, CRUZE, CTS, ELR, ENCLAVE, ENCORE, EQUINOX, ESCALADE, IMPALA, LACROSSE, MALIBU, REGAL, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SONIC, SPARK, SPARK EV, SRX, SS, SUBURBAN, TAHOE, TERRAIN, TRAVERSE, TRAX, VERANO, VOLT, XT5, XTS, YUKON (2010–2019) — 240 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical s

BUICK — ENCLAVE, TRAVERSE (2017–2019) — 4 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates SES lamp with DTC U1345. Inspect connection at the upper and lower Aero Shutters for water. Clean and repair as needed.

BUICK — ACADIA, ENCLAVE, OUTLOOK, TRAVERSE (2009–2014) — 40 vehicle combinations

154000 SEAT BELTS:PRETENSIONER

Certain vehicles may have a condition where if a driver repeatedly sits on the seat belt cable cover located at the base of the driver?s seat when entering the vehicle, it may cause the seat belt pretensioner to bend sharply over the seat s

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

118000 ELECTRICAL SYSTEM:SOFTWARE

This Preliminary information communicates information to not replace any parts for Favorites unavailable message intermittently. This PI will be deleted and a bulletin created when new software is available.

BUICK — 9-7X, ACADIA, ALERO, ASTRA, ASTRO, ATS, AURA, AVALANCHE, AVEO, AZTEK, BLAZER, BOLT EV, BONNEVILLE, BRAVADA, C SERIES, CAMARO, CANYON, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CAVALIER, CENTURY, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, DEVILLE, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XUV, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G3, G5, G6, G8, GRAND AM, GRAND PRIX, GTO, H2, H3, HHR, IMPALA, ION, JIMMY, L200, L300, LACROSSE, LESABRE, LUCERNE, MALIBU, MONTANA, MONTANA EXT, MONTE CARLO, N300, N300 MAX, ORLANDO, OUTLOOK, PARK AVENUE, 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, 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, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2004–2020) — 1598 vehicle combinations

110000 ELECTRICAL SYSTEM

This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module.

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

161000 STRUCTURE:FRAME AND MEMBERS

This technical bulletin provides repair information to correct a customer concern of seeing the rocker panel molding gapping to body at the rear wheel opening, on one or both sides of the vehicle.

BUICK — CAPTIVA, CAPTIVA SPORT, EQUINOX, LACROSSE, REGAL, TERRAIN, VERANO (2010–2013) — 20 vehicle combinations

350000 EQUIPMENT

This technical bulletin provides Correction information to find the cause of oil consumption. Techs should perform an oil consumption test first, check for oil leaks and if rate of oil consumption is high, then replace the pistons and the r

BUICK — ENCLAVE, SIERRA 1500, SILVERADO 1500, TRAVERSE (2018–2020) — 8 vehicle combinations

330000 INTERIOR LIGHTING

This Preliminary information communicates information on the third row dome lamp operation.

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

110000 ELECTRICAL SYSTEM

This technical bulletin provides a procedure to test and repair the underhood fuseblock if found the cause of the P-codes set.

BUICK — ENCORE, SONIC, SPARK, TRAX (2012–2019) — 29 vehicle combinations

030000 BRAKES (PWS)

This Preliminary Information communication provides information to the technician about vehicles that had the Brake Pressure Modulator Valve now Diagnostic Trouble Code C0131 is set current. Technician should remove Brake Pressure Modulator

BUICK — 4500 SERIES, 9-3, 9-5, 9-7X, ACADIA, ASCENDER, ASTRA, ASTRO, ATS, AURA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BOLT EV, BONNEVILLE, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CAVALIER, CENTURY, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, DEVILLE, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XL, ENVOY XUV, EPICA, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, F SERIES, G VAN BUS, G3, G5, G6, G8, GRAND AM, GRAND PRIX, GTO, H SERIES, H2, H3, HHR, I-290, IMPALA, ION, JIMMY CLASSIC, L200, L300, LACROSSE, LESABRE, LOW CAB 4500, LOW CAB 5500, LUCERNE, MALIBU, MONTANA, MONTE CARLO, N300, N300 MAX, OPTRA, ORLANDO, OUTLOOK, PARK AVENUE, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, S10, SAFARI, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 3500, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUNFIRE, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VENTURE, VERANO, VIBE, VOLT, VUE, W-SERIES, XL7, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2005–2018) — 806 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking

BUICK — ENCORE, TRAX (2019) — 6 vehicle combinations

010000 STEERING

A192221650 - Service Update Bulletin. Certain vehicles may not have had a wheel alignment performed after receiving a strut replacement at the port. If a wheel alignment was not performed, the vehicle could pull slightly to one side and/o

BUICK — ATS, CTS, REGAL, TERRAIN, XTS (2018–2019) — 16 vehicle combinations

350000 EQUIPMENT

This Technical bulletin provides a procedure for dealers/technicians on the release of Radio Software Version 22.8 Over-the-Air Update.

BUICK — ACADIA, BLAZER, BOLT EV, CAMARO, CRUZE, CT4, CT5, CT6, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ESCALADE, ESCALADE ESV, LACROSSE, MALIBU, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SPARK, SUBURBAN, TAHOE, TRAILBLAZER, TRAVERSE, TRAX, VOLT, XT4, XT5, XT6, YUKON, YUKON XL (2019–2021) — 441 vehicle combinations

110000 ELECTRICAL SYSTEM

This informational bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.

BUICK — ENCLAVE, TRAVERSE (2019) — 2 vehicle combinations

110000 ELECTRICAL SYSTEM

This engineering informational bulletin is requesting information from the field on verifying that the starter is operative and that the DTC codes are active or stored in history.

BUICK — 3500, 9-5, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVALANCHE 1500, AVEO, BOLT EV, CAMARO, CANYON, CAPRICE, 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, EXPRESS 1500, EXPRESS 3500, EXPRESS 4500, G VAN BUS, G3, G5, G6, G8, H2, H3, HHR, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 3500, LOW CAB FORWARD 4500, LUCERNE, MALIBU, N300, N300 MAX, ORLANDO, OUTLOOK, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 3500, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, T SERIES, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TOPKICK, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VIBE, VOLT, VUE, W-SERIES, W5500, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2010–2018) — 431 vehicle combinations

350000 EQUIPMENT

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 sen

BUICK — 3500, 4500HD, 4500XD, 5500HD, 5500XD, 6H, 7H, 88, 9-3, 9-5, 9-7X, 98, ACADIA, ALERO, ALERO EXPORT, ALLURE, ASCENDER, ASTRA, ASTRO, ATS, ATS-V, AURA, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, B SERIES, B6 MEDIUM DUTY, B7, B7 MEDIUM DUTY, BEAUVILLE, BERETTA, BLAZER, BOLT EV, BONNEVILLE, BRAVADA, C SERIES, C10, C4500, C5500, C6500, C6H042, 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, CT4, CT5, CT6, CTS, CTS-V, DENALI, DEVILLE, DIAMOND EDITION, DTS, ELDORADO, 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, EXPLORER, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY, EXPRESS CUTAWAY VAN, EXPRESS SAVANNAH, F SERIES, F-SERIES, F6, F7, FIREBIRD, G SERIES, G VAN, G VAN BUS, G1500, G25, G2500, G3, G30, G35, G3500, G4, G5, G6, G8, GM, GRAND AM, GRAND PRIX, GTO, H SERIES, H2, H3, HHR, IMPALA, IMPALA (GMX 211), INCOMPLETE/CUTAWAY C3, INTRIGUE, ION, JIMMY, JIMMY CLASSIC, L SERIES, L VAN, L200, L300, LACROSSE, LESABRE, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LS, LUCERNE, LUMINA, LUMINA APV, LW200, M SERIES, M VAN, M/L, M/L SERIES, M/L VAN, MALIBU, MALIBU CLASSIC, MALIBU ECO, MALIBU HYBRID, MALIBU MAXX, METRO, MONTANA, MONTANA EXT, MONTE CARLO, MOTOR HOME, N-SERIES, N300, N300 MAX, OPTRA, ORLANDO, OUTLOOK, P SERIES, PARK AVENUE, PRIZM, PURSUIT, R SERIES, RAINIER, REGAL, REGAL TOURX, RELAY, RENDEZVOUS, RIVIERA, ROADTREK, S/T BLAZER, S/T JIMMY, S10, S15, SAFARI, SAFARI (GMC), SANANA, SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SAVANNA, SC, SEVILLE, SIERRA, SIERRA 1500, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA 3500, SIERRA 3500 HD, SIERRA DENALI, SILHOUETTE, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 3500 HD, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SKY, SKYLARK, SL, SLS, SOLSTICE, SONIC, SONOMA, SONOMA CREW, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, SUNBIRD, SUNFIRE, SW, 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 AM, TRANS SPORT, TRAVERSE, TRAX, UPLANDER, V SERIES, VAN, VANDURA, VENTURE, VERANO, VIBE, VOLT, VUE, W SERIES, W SERIES C3 3500, W-SERIES, W3500, W4, W4500, W5500, W5500HD, WT5500, XL7, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500, YUKON XL DENALI (2000–2021) — 10981 vehicle combinations

060000 ENGINE (PWS)

This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels

BUICK — ENCLAVE, TRAVERSE (2018–2019) — 4 vehicle combinations

022400 SUSPENSION:REAR:SHOCK ABSORBER

This engineering informational bulletin is requesting information on noise heard from the rear shock absorber.

BUICK — 3500, 9-7X, ACADIA, ASTRA, ASTRO, ATS, AURA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BOLT EV, BONNEVILLE, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CAVALIER, CENTURY, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, DEVILLE, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XL, ENVOY XUV, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, G VAN BUS, G3, G5, G6, G8, GRAND AM, GRAND PRIX, GTO, H2, H3, HHR, IMPALA, ION, JIMMY CLASSIC, L200, L300, LACROSSE, LESABRE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, MALIBU, MONTANA, MONTE CARLO, N300 MAX, OUTLOOK, PARK AVENUE, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, SAFARI, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUNFIRE, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VENTURE, VERANO, VIBE, VOLT, VUE, W-SERIES, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2005–2020) — 746 vehicle combinations

100000 POWER TRAIN

This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.

BUICK — ENCLAVE, LACROSSE (2018–2019) — 3 vehicle combinations

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

This technical bulletin provides a procedure to program the radio to correct a condition of Circular Image Distortion in circle icons and Buick Tri-Shield Start-up Screen.

BUICK — ACADIA, ENCLAVE, MALIBU, TRAVERSE, XT5 (2016–2019) — 19 vehicle combinations

220000 SEATS

This engineering informational bulletin is requesting information from the field to determine a root cause for a condition of drivers seat track will not adjust forward and/or backwards and becomes seized. This PIE revision adds the Acadia,

BUICK — LUCERNE (2007)

060000 ENGINE AND ENGINE COOLING

This Preliminary information is to inform the dealer of a possible coolant leak from an engine expansion plug. The dealer is advised to seal and replace the core plug to correct the leak.

BUICK — ACADIA, BLAZER, ENCLAVE, TRAVERSE, XT5 (2017–2019) — 11 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates information for terminal concerns at X203

BUICK — CRUZE, ELR, ENCORE, SONIC, TRAX, VOLT (2011–2019) — 108 vehicle combinations

060000 ENGINE (PWS)

This informational bulletin provides information to the tech to test the PCV for proper performance before replacing the camshaft cover to correct a MIL On w/DTC P0171.