Technical Service Bulletins (TSB)

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

160000 STRUCTURE

This technical bulletin provides a procedure to correct the condition of Creak/Tick Noise from the Left (Driver) Side Rear of the Vehicle When Traveling Over Bumps/Uneven Surfaces.

BUICK — ENVISION (2021–2023) — 3 vehicle combinations

138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

This Preliminary information communicates an instance where the interior air quality sensor can create an buzzing or whirring noise.

BUICK — ENCORE GX, TRAILBLAZER (2020–2023) — 98 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

BUICK — ENCLAVE, TRAVERSE (2022–2023) — 4 vehicle combinations

070000 FUEL SYSTEM, GASOLINE

This Preliminary information communicates a leak concern between the fuel rail pressure sensor and fuel rail at the threads.

BUICK — ENCLAVE, TRAVERSE (2022–2023) — 4 vehicle combinations

070000 FUEL SYSTEM, GASOLINE

This engineering information (EI) closure ends the need for further information from technicians in regards to a fuel smell and or fuel leaking from the fuel rail pressure sensor.

BUICK — ENVISION (2021–2023) — 3 vehicle combinations

353000 EQUIPMENT:ELECTRICAL

This Preliminary information communicates an instance where the rear map/reading lamps may come on during vehicle cranking.

BUICK — 3500HD, BLAZER, BOLT EV, BRIGHTDROP EV600, CAMARO, CANYON, COLORADO, CT4, CT5, ENCLAVE, ENCORE GX, ENVISION, ENVISTA, EQUINOX, EQUINOX EV, ESCALADE, HUMMER EV, LYRIQ, MALIBU, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO EV, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, XT4, XT5, XT6, YUKON (2024) — 123 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 — ENCLAVE, TRAVERSE, XT5, XT6 (2022–2023) — 30 vehicle combinations

110000 ELECTRICAL SYSTEM

This technical bulletin provides repair information to correct a customer concern of Auto Heated Seat Option is Not Available in Personalization.

BUICK — BLAZER, ENCORE GX, TRAILBLAZER, TRAX (2020–2024) — 9 vehicle combinations

582000 CHILD SEAT:LATCH ADJUSTER

This Preliminary information communicates to the dealer the location of the rear child seat latch anchor locations.

BUICK — LACROSSE, REGAL, SRX, XTS (2010–2019) — 25 vehicle combinations

350000 EQUIPMENT

This Preliminary information communicates additional diagnostics to help isolate source of complaint.

BUICK — CRUZE, EQUINOX, MALIBU, REGAL, TERRAIN (2012–2023) — 106 vehicle combinations

100000 POWER TRAIN

This Preliminary information communication provides information to the technician with diagnostic tips for diagnosing reduced or low engine power with no Driver Information Center messages, that may be caused by an inaccurate brake pedal po

BUICK — 3500, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, 9-2X, 9-3, 9-4X, 9-5, 9-7X, ACADIA, ALERO, ALERO EXPORT, ALLURE, ASTRA, ASTRO, ATS, ATS-V, AURA, AURA HYBRID, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AZTEK, B7, BERETTA, BLAZER, 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, COLORADO, CONVENTIONAL, CORVETTE, CORVETTE Z06, CORVETTE ZR1, CT4, CT5, CT6, CTS, CTS-V, DENALI, DEVILLE, DTS, ELDORADO, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVOY, ENVOY 360, ENVOY DENALI, ENVOY DENALI XL, ENVOY XL, ENVOY XL 370, ENVOY XUV, 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, F SERIES, 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, H1, H2, H2 SUT, H3, H3 SUT, H4, 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, LW200, M SERIES, M VAN, M/L, M/L SERIES, MALIBU, MALIBU CLASSIC, MALIBU ECO, MALIBU HYBRID, MALIBU MAXX, MONTANA, MONTE CARLO, MOTOR HOME, N300, N300 MAX, ORLANDO, OUTLOOK, P SERIES, PARK AVENUE, PURSUIT, RAINIER, REGAL, REGAL TOURX, RELAY, RENDEZVOUS, ROADTREK, S/T BLAZER, S10, S15, SAFARI, SAFARI (GMC), SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SC, SEVILLE, SIERRA 1500, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA 3500, SIERRA DENALI, SILHOUETTE, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SL, SLS, SOLSTICE, SONOMA, SONOMA CREW, 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 AM, TRANS SPORT, TRAVERSE, UPLANDER, VAN, VECTRA, VENTURE, VERANO, VIBE, 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, YUKON XL DENALI (2002–2023) — 3785 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.

BUICK — ACADIA, BLAZER, CAMARO, CT6, ENCLAVE, ENCORE, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, TRAVERSE, XT4, XT5, XT6 (2020–2021) — 56 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information on Radio Software Version U168 Update to correct customer concerns of radio software issues.

BUICK — ENCORE GX, SIERRA 1500, SILVERADO 1500, TRAILBLAZER, XT4 (2022–2023) — 8 vehicle combinations

010000 STEERING

Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional on certain 2022-2023 model year vehicles listed above, built beginning January 6, 2022. The affected

BUICK — 3500, 3500HD, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, ACADIA, ATS, ATS-V, AVEO, BLAZER, BOLT EUV, BOLT EV, BRIGHTDROP EV600, C3500, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CASCADA, CHEYENNE, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, CTS-V, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVISTA, EQUINOX, EQUINOX EV, ESCALADE, ESCALADE ESV, EXPRESS, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY VAN, G3500, G4500, HUMMER EV, IMPALA, LACROSSE, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LYRIQ, MALIBU, MALIBU HYBRID, N300, N300 MAX, ONIX, OPTRA, ORLANDO, REGAL, REGAL TOURX, S10, 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, SILVERADO EV, SONIC, SPARK, SPARK EV, SRX, SS, SUBURBAN, SUBURBAN 1500, TAHOE, TAHOE POLICE PURSUIT, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2016–2024) — 1048 vehicle combinations

160000 STRUCTURE

This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only).

BUICK — 3500, 3500HD, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, 9-3, 9-5, ACADIA, ASTRA, ATS, ATS-V, AURA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, BLAZER, BOLT EV, BRIGHTDROP EV600, C3500, C4500, 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, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVISTA, ENVOY, EQUINOX, EQUINOX EV, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, ESCALADE HYBRID, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY, G VAN BUS, G3, G3500, G4500, G5, G6, G8, H2, H3, HHR, HUMMER EV, IMPALA, LACROSSE, LESABRE, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, LUMINA, LYRIQ, MALIBU, MALIBU ECO, MALIBU HYBRID, MONTE CARLO, N300, N300 MAX, ONIX, OPTRA, ORLANDO, OUTLOOK, REGAL, REGAL TOURX, S10, 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, SILVERADO EV, SKY, SOLSTICE, SONIC, SPARK, SRX, SS, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, T SERIES, T7500, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TOPKICK, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VIBE, VOLT, VUE, W-SERIES, W3500, W4500, W5500, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2010–2024) — 918 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.

BUICK — 3500, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, 9-3, 9-5, ACADIA, ASTRA, ATS, ATS-V, AURA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, BLAZER, C3500, C4500, 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, 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, G3, G3500, G4500, G5, G6, G8, H2, H3, HHR, IMPALA, LACROSSE, LESABRE, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, LUMINA, MALIBU, MALIBU ECO, MALIBU HYBRID, MONTE CARLO, N300, N300 MAX, ONIX, OPTRA, ORLANDO, OUTLOOK, REGAL, REGAL TOURX, S10, 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, SKY, SOLSTICE, SONIC, SPARK, SRX, SS, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, T SERIES, T7500, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TOPKICK, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VIBE, VOLT, VUE, W-SERIES, W3500, W4500, W5500, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2010–2024) — 878 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This service 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 — ACADIA, BLAZER, CAMARO, CANYON, COLORADO, CORVETTE, CT4, CT5, ENCLAVE, ENCORE GX, EQUINOX, ESCALADE ESV, MALIBU, SIERRA 1500, SIERRA 2500, SILVERADO 1500, SILVERADO 2500, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, XT4, XT5, XT6, YUKON XL (2022–2023) — 50 vehicle combinations

350000 EQUIPMENT

This Preliminary information communicates vehicles being built without certain options due to a parts shortage.

BUICK — ACADIA, BLAZER, CAMARO, CORVETTE, CT4, CT5, ENCLAVE, ENCORE GX, ENVISION, EQUINOX, HUMMER EV, MALIBU, SIERRA 1500, SILVERADO 1500, SILVERADO 2500, SUBURBAN, TERRAIN, TRAILBLAZER, TRAVERSE, XT4, XT5, XT6, YUKON XL (2021–2023) — 61 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 — ENVISION (2023)

350000 EQUIPMENT

Customer Satisfaction Program. Due to the industry-wide part shortage, certain vehicles NOT equipped with Remote Start a?? Vehicle (RPO BTV) and Body Equipment a?? Lift Gate, Power, Hands Free (RPO TC2) were manufactured and shipped withou

BUICK — ENVISION (2023)

350000 EQUIPMENT

Customer Satisfaction Program. Due to the industry-wide part shortage, certain vehicles were manufactured and shipped without a second key fob. The affected vehicle owners should have been made aware of the condition at sale, and notified

BUICK — 3500, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, 9-3, 9-5, ACADIA, ASTRA, ATS, ATS-V, AURA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, BLAZER, C3500, C4500, 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, 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, G3, G3500, G4500, G5, G6, G8, H2, H3, HHR, IMPALA, LACROSSE, LESABRE, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, LUMINA, LYRIQ, MALIBU, MALIBU ECO, MALIBU HYBRID, MONTE CARLO, N300, N300 MAX, ONIX, OPTRA, ORLANDO, OUTLOOK, REGAL, REGAL TOURX, S10, 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, SKY, SOLSTICE, SONIC, SPARK, SRX, SS, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, T SERIES, T7500, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TOPKICK, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VIBE, VOLT, VUE, W-SERIES, W3500, W4500, W5500, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2010–2024) — 883 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.

BUICK — ACADIA, BLAZER, BOLT EUV, BOLT EV, CAMARO, CORVETTE, CT4, CT5, CT6, ENCLAVE, ENCORE GX, ENVISION, EQUINOX, MALIBU, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, SUBURBAN 1500, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, XT4, XT5, XT6, YUKON, YUKON XL (2021–2023) — 412 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to update radio software to correct customer concerns of Software related issues.

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, CT4, CT5, ENCLAVE, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, TAHOE, TRAVERSE, XT4, YUKON, YUKON XL (2022–2023) — 33 vehicle combinations

220000 SEATS

Customer Satisfaction Program. 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