Technical Service Bulletins (TSB)

BUICK — 6H, 7H, 88, 9-2X, 9-3, 9-5, 9-7X, 98, ACADIA, ACHIEVA, ALERO, ALERO EXPORT, ALLURE, ASTRA, ASTRO, ATS, ATS-V, AURA, AURA HYBRID, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, B SERIES, B6 MEDIUM DUTY, B7, B7 MEDIUM DUTY, BEAUVILLE, BERETTA, BLAZER, BOLT EUV, BOLT EV, BONNEVILLE, BRAVADA, BRIGHTDROP EV600, C SERIES, C10, C3500, 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, CUTLASS, DENALI, DEVILLE, DIAMOND EDITION, DTS, ELDORADO, ELR, ENCLAVE, ENCORE, ENCORE GX, 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, F6, F7, FIREBIRD, G SERIES, G VAN, G VAN BUS, G1500, G25, G2500, G3, G30, G35, G3500, G4, G4500, G5, G6, G8, GM, GRAND AM, GRAND PRIX, GT, GTO, H SERIES, H1, H2, H2 SUT, H3, H3 SUT, H4, HHR, HUMMER EV, IMPALA, IMPALA (GMX 211), INCOMPLETE/CUTAWAY C3, INTRIGUE, ION, JIMMY, JIMMY CLASSIC, L SERIES, L VAN, L200, L300, LACROSSE, LESABRE, LS, LUCERNE, LUMINA, LUMINA APV, LW200, LYRIQ, M SERIES, M VAN, M/L, M/L SERIES, M/L VAN, MALIBU, MALIBU CLASSIC, MALIBU ECO, MALIBU HYBRID, MALIBU MAXX, METRO, MONTANA, MONTE CARLO, MOTOR HOME, N300, N300 MAX, ONIX, 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, SC, SEVILLE, SIERRA 1500, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA 3500, SIERRA 3500 HD, SIERRA DENALI, SILHOUETTE, 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, VECTRA, VENTURE, VERANO, VIBE, VOLT, VUE, VUE HYBRID, W SERIES, W SERIES C3 3500, W-SERIES, W3500, W4, W4500, W5500, W5500HD, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500, YUKON XL DENALI (2000–2023) — 2323 vehicle combinations

120000 EXTERIOR LIGHTING

This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.

BUICK — ENVISION (2016)

110000 ELECTRICAL SYSTEM

This Preliminary information communicates an engineering investigation for the unable to contact OnStar concern.

BUICK — ENVISION (2023)

116340 ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER

This Preliminary information communicates an instance where the vehicle is delivered build shy with only one key fob when equipped with RPO R6I.

BUICK — CRUZE, ENCORE, EQUINOX, MALIBU, TERRAIN, TRAX (2014–2022) — 38 vehicle combinations

060000 ENGINE AND ENGINE COOLING

Service Update. Certain vehicles may have a condition in which ice or sludge can accumulate in the Charge Air Cooler (CAC) or Closed Crankcase Ventilation (CCV) system when driving in extremely cold weather conditions (-18A?C (0A?F) or les

BUICK — ACADIA, BLAZER, ENCORE GX, MALIBU, TERRAIN, TRAILBLAZER, TRAVERSE, XT5, XT6 (2022–2023) — 17 vehicle combinations

100000 POWER TRAIN

This Preliminary information communicates possible transmission fluid leak underneath the vehicle that may be root cause as a trans not being cleaned after production.

BUICK — ACADIA, BLAZER, BOLT EUV, BOLT EV, CT6, ENCLAVE, ENCORE GX, EQUINOX, LACROSSE, SIERRA 1500, SIERRA 2500, SILVERADO 1500, SILVERADO 5500HD, TERRAIN, TRAVERSE, XT4, XT5, XT6 (2019–2023) — 73 vehicle combinations

280000 BACK OVER PREVENTION

This Preliminary information communicates diagnostics aids for rear view camera issues that may be encountered.

BUICK — ACADIA, BLAZER, CT4, CT5, ENCLAVE, SIERRA 2500, SIERRA 3500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, TAHOE, TRAVERSE, XT4, YUKON, YUKON XL (2022–2023) — 29 vehicle combinations

220000 SEATS

Due to the industry-wide semiconductor shortage, the front driver and passenger seat cushion ventilation blowers are not functional on certain 2022-2023 model year vehicles listed above, built beginning March 30, 2022. Dealers are to rep

BUICK — ACADIA, BLAZER, CAMARO, CANYON, COLORADO, CT4, CT5, ENCLAVE, ENCORE GX, ENVISION, EQUINOX, MALIBU, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, XT5, XT6, YUKON, YUKON XL (2022–2023) — 36 vehicle combinations

220000 SEATS

Due to the industry-wide semiconductor shortage, the front heated/ventilated seats, front heated seats, or rear heated seats are not functional on certain 2022-2023 model year vehicles listed above, built beginning November 15, 2021. The a

BUICK — ENCLAVE, TRAVERSE (2022–2023) — 8 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a fuel smell and or fuel leaking from the fuel rail pressure sensor.

BUICK — CORVETTE, CT4, CT5, ENVISION, ESCALADE, ESCALADE ESV, HUMMER EV, SUBURBAN, SUBURBAN 1500, TAHOE, YUKON, YUKON XL (2021–2023) — 147 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to correct a customer concern of Black Radio Display Screen (Triangle and Camera with Slash Through it) with DTCs B1A62 82 and 86 Setting Current in Video Processing Module (VPM).

BUICK — ACADIA, CRUZE, ENCORE, EQUINOX, MALIBU, TERRAIN, TRAX, XT4, XT5, XT6 (2018–2024) — 155 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This service bulletin provides information on a normal characteristic of a transmission that will not shift into overdrive range during cold ambient temperatures.

BUICK — ACADIA, ATS, ATS-V, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, BLAZER, BOLT EUV, BOLT EV, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CHEYENNE, CITY EXPRESS, COBALT, COBALT SS, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DENALI, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVOY, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, ESCALADE HYBRID, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY, G VAN BUS, G3500, G4500, HHR, HUMMER EV, IMPALA, LACROSSE, LESABRE, LUCERNE, LUMINA, LYRIQ, MALIBU, MALIBU ECO, MALIBU HYBRID, MONTE CARLO, N300, N300 MAX, ONIX, OPTRA, ORLANDO, REGAL, REGAL TOURX, S10, SANANA, SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2010–2023) — 2454 vehicle combinations

190000 TIRES

This service bulletin provides information for accurate tire pressures that ensure the safe handling and appropriate ride characteristics of GM cars and trucks.

BUICK — ENCLAVE, TRAVERSE (2023) — 4 vehicle combinations

160000 STRUCTURE

This Preliminary information communicates that a vehicle may be encountered with a creak noise in the left rear when going over bumps. The dealer technician is given instructions on how to apply structural adhesive to the joint between the

BUICK — ACADIA, ATS, ATS-V, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, BLAZER, BOLT EUV, BOLT EV, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CHEYENNE, CITY EXPRESS, COBALT, COBALT SS, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DENALI, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVOY, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, ESCALADE HYBRID, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY, G VAN BUS, G3500, G4500, HHR, HUMMER EV, IMPALA, LACROSSE, LESABRE, LUCERNE, LUMINA, LYRIQ, MALIBU, MALIBU ECO, MALIBU HYBRID, MONTE CARLO, N300, N300 MAX, ONIX, OPTRA, ORLANDO, REGAL, REGAL TOURX, S10, SANANA, SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2010–2023) — 2454 vehicle combinations

199000 TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

This service bulletin provides information for tire pressure monitoring (TPM) system concerns.

BUICK — ENVISION (2023)

160000 STRUCTURE

This technical bulletin shows you how to install foam to correct the condition of Rattle or Flutter Noise Under the Vehicle at Highway Speeds

BUICK — CORVETTE, CT4, CT5, ENVISION, ESCALADE ESV, HUMMER EV, SIERRA 1500, SILVERADO 1500, SUBURBAN, TAHOE, YUKON XL (2020–2023) — 32 vehicle combinations

340000 COMMUNICATION

This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.

BUICK — ACADIA, BLAZER, CT4, CT5, CT6, ENVISION, XT4, XT5, XT6 (2019–2023) — 33 vehicle combinations

063110 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)

This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set.

BUICK — ACADIA, BLAZER, CAMARO, ENCORE GX, EQUINOX, MALIBU, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX (2022–2023) — 20 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.

BUICK — ACADIA, BLAZER, CAMARO, CORVETTE, CT4, CT5, ENCLAVE, ENCORE GX, ENVISION, EQUINOX, HUMMER EV, MALIBU, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, TERRAIN, TRAILBLAZER, TRAVERSE, XT4, XT5, XT6, YUKON XL (2021–2023) — 69 vehicle combinations

353000 EQUIPMENT:ELECTRICAL

This Preliminary information communicates to the technician that GM is aware of this concern with audio loss and the OnStar LED being red. GM is working on a solution to correct this customers concern.

BUICK — ENCLAVE, TRAVERSE, XT5, XT6 (2022–2023) — 8 vehicle combinations

353000 EQUIPMENT:ELECTRICAL

This Preliminary information communicates information to the technician that if they receive a vehicle with this concern after performing N212354521, General Motors is aware of this and working to correct the ECC software and will provide a

BUICK — ACADIA, BLAZER, CAMARO, ENCORE GX, EQUINOX, MALIBU, SIERRA 1500, SILVERADO 1500, SILVERADO 2500, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX (2022–2023) — 43 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates to dealer that GM is aware of an issue with Apple Carplay, and is working on a resolution.

BUICK — 3500, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, 9-2X, 9-3, 9-5, 9-7X, ACADIA, ALLURE, ASTRA, ASTRO, ATS, ATS-V, AURA, AURA HYBRID, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BOLT EUV, 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, CT4, CT5, CT6, CTS, CTS-V, DENALI, DEVILLE, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, 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, G VAN BUS, G1500, G2500, G3, G3500, G4, G4500, G5, G6, G8, GRAND AM, GRAND PRIX, GT, GTO, H2, H2 SUT, H3, H3 SUT, H4, HHR, HUMMER EV, IMPALA, IMPALA (GMX 211), INCOMPLETE/CUTAWAY C3, ION, JIMMY CLASSIC, L200, L300, LACROSSE, LESABRE, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, LUMINA, LW200, LYRIQ, MALIBU, MALIBU CLASSIC, MALIBU ECO, MALIBU HYBRID, MALIBU MAXX, MONTANA, MONTE CARLO, N300, N300 MAX, ONIX, 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, SIERRA 1500, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SKY, 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, TRAILBLAZER, TRAILBLAZER 360, TRAILBLAZER EXT, TRAILBLAZER EXT 370, TRANS SPORT, TRAVERSE, TRAX, UPLANDER, VENTURE, VERANO, VIBE, VOLT, VUE, VUE HYBRID, W SERIES C3 3500, W-SERIES, W3500, W4500, W5500, W5500HD, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2005–2023) — 1568 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only).

BUICK — ACADIA, BLAZER, BOLT EUV, BOLT EV, CAMARO, CRUZE, CT4, CT5, CT6, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ESCALADE, ESCALADE ESV, HUMMER EV, LACROSSE, LYRIQ, MALIBU, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SPARK, SUBURBAN, SUBURBAN 1500, TAHOE, TRAILBLAZER, TRAVERSE, TRAX, VOLT, XT4, XT5, XT6, YUKON (2019–2023) — 539 vehicle combinations

120000 EXTERIOR LIGHTING

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

BUICK — ENCORE, TRAX (2021–2022) — 6 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This technical bulletin provides a procedure to smoke test the EVAP system to help verify a possible evap canister leak.

BUICK — ENVISION (2016–2020) — 5 vehicle combinations

020000 SUSPENSION

This technical bulletin provides a procedure to replace the rear lower control arm bushings if found discolored or leaking fluid which may cause the customers concern.