Technical Service Bulletins (TSB)

BUICK — 3500HD, 9-2X, 9-3, 9-4X, 9-5, 9-7X, ACADIA, ALLURE, ASTRA, ATS, ATS-V, AURA, AURA HYBRID, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, BLAZER, BOLT EUV, BOLT EV, BONNEVILLE, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CITY EXPRESS, CLASSIC, COBALT, COBALT SS, COLORADO, CORVETTE, CORVETTE E-RAY, CORVETTE Z06, CORVETTE ZR1, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DENALI, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVISTA, ENVOY, ENVOY 360, ENVOY DENALI, ENVOY DENALI XL, ENVOY XL, ENVOY XL 370, 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, G3, G3500, G4, G4500, G5, G6, G8, GRAND PRIX, GTO, H2, H2 SUT, H3, H3 SUT, H4, HHR, HUMMER EV, IMPALA, IMPALA (GMX 211), ION, LACROSSE, LESABRE, LUCERNE, LUMINA, LYRIQ, LYRIQ EV, MALIBU, MALIBU CLASSIC, MALIBU ECO, MALIBU HYBRID, MALIBU MAXX, MONTANA, MONTE CARLO, N300, N300 MAX, OPTRA, OUTLOOK, PURSUIT, RAINIER, REGAL, REGAL TOURX, RELAY, RENDEZVOUS, 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, SILVERADO LT, SKY, SOLSTICE, SONIC, SONOMA, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TERRAZA, TORRENT, TRAILBLAZER, TRAILBLAZER 360, TRAILBLAZER EXT, TRAILBLAZER EXT 370, TRAVERSE, TRAX, UPLANDER, VERANO, VIBE, VOLT, VUE, VUE HYBRID, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2006–2024) — 1259 vehicle combinations

200000 WHEELS

This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).

BUICK — ENCORE GX, ENVISTA, TRAILBLAZER, TRAX (2024) — 10 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This service bulletin advises the tech to re-program the ECM to correct a customer concern of the MIL Illuminated w/DTCs P0324 and/or P0116 Set.

BUICK — ACADIA, BLAZER, ENCLAVE, SIERRA 1500, SIERRA 3500, SILVERADO 1500, SILVERADO 4500HD, SILVERADO EV, SUBURBAN, SUBURBAN 1500, TAHOE, TRAVERSE, XT5, YUKON, YUKON XL (2023–2024) — 38 vehicle combinations

350000 EQUIPMENT

This Preliminary information communicates Engineering is investigating a no audio issue.

BUICK — CAMARO, REGAL, REGAL TOURX (2011–2020) — 85 vehicle combinations

100000 POWER TRAIN

This service bulletin provides repair information to correct a customer concern of seeing a Shift to Park Message Displayed in DIC.

BUICK — 3500, 3500HD, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, 9-2X, 9-3, 9-5, 9-7X, ACADIA, ALERO, ALERO EXPORT, ALLURE, ASTRA, ASTRO, ATS, ATS-V, AURA, AURA HYBRID, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, B7, BERETTA, BLAZER, BLAZER EV, BOLT EUV, 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, CITY EXPRESS, CLASSIC, COBALT, COBALT SS, COLORADO, CONVENTIONAL, CORVETTE, CORVETTE E-RAY, CORVETTE Z06, CORVETTE ZR1, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DENALI, DEVILLE, DTS, ELDORADO, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVISTA, ENVOY, ENVOY 360, ENVOY DENALI, ENVOY DENALI XL, ENVOY XL, ENVOY XL 370, ENVOY XUV, EPICA, EQUINOX, EQUINOX EV, 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, GTO, 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, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LS, LUCERNE, LUMINA, LW200, LW300, LYRIQ, LYRIQ EV, 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, OPTRA, OUTLOOK, P SERIES, PARK AVENUE, PRIZM, 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, SILVERADO EV, SILVERADO LT, SKY, SL, 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 AM, TRANS SPORT, TRAVERSE, TRAX, UPLANDER, VAN, 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, YUKON XL DENALI (2002–2024) — 2070 vehicle combinations

110000 ELECTRICAL SYSTEM

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

BUICK — ACADIA, BLAZER, CAMARO, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, ESCALADE, EXPRESS, EXPRESS 3500, MALIBU, SAVANA, SAVANA 3500, SIERRA 1500, SILVERADO 1500, TAHOE, TERRAIN, TRAVERSE, XT4, XT5, XT6, YUKON (2021–2023) — 59 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates a vehicle may come to the dealer with a complaint of no start, stalling, rough idle, no acceleration, loss of power, erratic shifting, fuel gauge inoperative, MIL illuminated with various codes stor

BUICK — ACADIA, BLAZER, CAMARO, ENCORE GX, EQUINOX, MALIBU, SIERRA 1500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO EV, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX (2019–2024) — 54 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, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, ESCALADE, EXPRESS, EXPRESS 3500, MALIBU, SAVANA, SAVANA 3500, SIERRA 1500, SILVERADO 1500, TAHOE, TERRAIN, TRAVERSE, XT4, XT5, XT6, YUKON (2021–2023) — 59 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates a vehicle may come to the dealer with a complaint of no start, stalling, rough idle, no acceleration, loss of power, erratic shifting, fuel gauge inoperative, MIL illuminated with various codes stor

BUICK — ENCORE GX, EQUINOX, SIERRA 1500, SILVERADO 1500, TAHOE, TERRAIN, TRAX, YUKON (2024) — 8 vehicle combinations

070000 FUEL SYSTEM, GASOLINE

Service Update. On certain vehicles, the fuel rail pressure sensors may have been built with output shifts at various temperature and pressure ranges. Dealers are to replace the fuel rail pressure sensor.

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 (2021–2024) — 249 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

BUICK — ACADIA, BLAZER, ENCLAVE, TRAVERSE, XT5, XT6 (2020–2024) — 30 vehicle combinations

162600 STRUCTURE:BODY:HATCHBACK/LIFTGATE

This Preliminary information communicates information to help diagnose inoperative rear liftgate logo.

BUICK — ENCORE GX, TRAILBLAZER (2020–2023) — 21 vehicle combinations

060000 ENGINE AND ENGINE COOLING

Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles. The Engine Control Module (ECM) may not clear the permanent status of DTC P0521 (Engine Oil Pressure Sensor Performance). If t

BUICK — ACADIA, ENCLAVE, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, TRAVERSE, XT4, XT5, XT6 (2020–2021) — 28 vehicle combinations

110000 ELECTRICAL SYSTEM

This technical bulletin provides repair information to correct a customer concern of U170 Radio Software Update.

BUICK — 9-7X, AVALANCHE 1500, AVALANCHE 2500, BLAZER, BRAVADA, ENVOY, ENVOY 360, ENVOY DENALI, ENVOY DENALI XL, ENVOY XL, ENVOY XL 370, ENVOY XUV, ESCALADE, ESCALADE ESV, ESCALADE EXT 1500, FIREBIRD, JIMMY, JIMMY CLASSIC, RAINIER, SIERRA 1500, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA 3500, SIERRA 3500 HD, SIERRA DENALI, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 3500 HD, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, TAHOE, TRAILBLAZER, TRAILBLAZER 360, TRAILBLAZER EXT, TRAILBLAZER EXT 370, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL, YUKON XL 1500, YUKON XL 2500, YUKON XL DENALI (2000–2006) — 213 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.

BUICK — ACADIA, BLAZER, ENCLAVE, EQUINOX, MALIBU, TERRAIN, TRAVERSE, XT4, XT5, XT6 (2022–2024) — 70 vehicle combinations

110000 ELECTRICAL SYSTEM

This engineering information (EI) closure ends the need for gathering further information from technicians in regard to Melted Burn Marks and/or Smoke Smell Coming from the Height Adjuster Motor Under the Front Row Seat.

BUICK — 3500, 3500HD, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, 9-2X, 9-3, 9-5, 9-7X, ACADIA, ALLURE, ASTRA, ATS, ATS-V, AURA, AURA HYBRID, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, BLAZER, BLAZER EV, BOLT EUV, BOLT EV, BONNEVILLE, C SERIES, C3500, C4500, C5500, C6500, C7500, C8500, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CITY EXPRESS, CLASSIC, COBALT, COBALT SS, COLORADO, CORVETTE, CORVETTE E-RAY, CORVETTE Z06, CORVETTE ZR1, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DENALI, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVISTA, ENVOY, ENVOY 360, ENVOY DENALI, ENVOY DENALI XL, ENVOY XL, ENVOY XL 370, EQUINOX, EQUINOX EV, 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, G3, G3500, G4, G4500, G5, G6, G8, GRAND PRIX, GTO, H2, H2 SUT, H3, H3 SUT, H4, HHR, HUMMER EV, IMPALA, IMPALA (GMX 211), ION, LACROSSE, LESABRE, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, LUMINA, LYRIQ, MALIBU, MALIBU CLASSIC, MALIBU ECO, MALIBU HYBRID, MALIBU MAXX, MONTANA, MONTE CARLO, N300, N300 MAX, OPTRA, OUTLOOK, PURSUIT, RAINIER, REGAL, REGAL TOURX, RELAY, RENDEZVOUS, 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, SILVERADO LT, SKY, SOLSTICE, SONIC, SONOMA, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, T SERIES, 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, TRAVERSE, TRAX, UPLANDER, 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 (2006–2024) — 1465 vehicle combinations

350000 EQUIPMENT

This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

BUICK — 3500, 3500HD, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, ACADIA, ATS, ATS-V, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, BLAZER, BLAZER EV, BOLT EUV, BOLT EV, C3500, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CITY EXPRESS, COLORADO, CORVETTE, CORVETTE E-RAY, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVISTA, ENVOY, EQUINOX, EQUINOX EV, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE HYBRID, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY, EXPRESS CUTAWAY VAN, G3500, G4500, 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, N300, N300 MAX, 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, SILVERADO LT, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, SUBURBAN 1500, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TOPKICK, 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 (2012–2024) — 785 vehicle combinations

350000 EQUIPMENT

This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

BUICK — ACADIA, BLAZER, ENCLAVE, SIERRA 1500, SIERRA 3500, SILVERADO 1500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SILVERADO EV, SUBURBAN, SUBURBAN 1500, TAHOE, TRAVERSE, XT5, YUKON, YUKON XL (2023–2024) — 24 vehicle combinations

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

This Preliminary information communicates Engineering is investigating a no audio issue.

BUICK — ACADIA, BLAZER, CAMARO, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, ESCALADE, EXPRESS, EXPRESS 3500, MALIBU, SAVANA, SAVANA 3500, SIERRA 1500, SILVERADO 1500, TAHOE, TERRAIN, TRAVERSE, XT4, XT5, XT6, YUKON (2021–2023) — 59 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates a vehicle may come to the dealer with a complaint of no start, stalling, rough idle, no acceleration, loss of power, erratic shifting, fuel gauge inoperative, MIL illuminated with various codes stor

BUICK — ACADIA, BLAZER, ENCLAVE, SIERRA 1500, SIERRA 3500, SILVERADO 1500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SILVERADO EV, SUBURBAN, SUBURBAN 1500, TAHOE, TRAVERSE, XT5, YUKON, YUKON XL (2023–2024) — 24 vehicle combinations

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

This Preliminary information communicates Engineering is investigating a no audio issue.

BUICK — ACADIA, BLAZER, CANYON, COLORADO, CT4, CT5, ENVISION, SIERRA 1500, SILVERADO 1500, XT4, XT5, XT6 (2019–2024) — 168 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates to dealers? information related to a Malfunction Indicator Lamp (MIL) Illuminated due to a U0672 setting. Advises the technician to perform Electric Engine Coolant Pump connection inspections. To cl

BUICK — ACADIA, ATS, AURA, AVALANCHE, BLAZER, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, DTS, ELR, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY VAN, G5, G6, H3, HHR, IMPALA, LACROSSE, LUCERNE, MALIBU, OUTLOOK, REGAL, SAVANA, SAVANA 2500, SAVANA 3500, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO LT, SKY, SOLSTICE, SONIC, SPARK, SRX, SS, STS, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VIBE, VOLT, VUE, XT4, XT5, XT6, XTS, YUKON (2010–2022) — 936 vehicle combinations

030000 BRAKES (PWS)

This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.

BUICK — ACADIA, BLAZER, CT4, CT5, ENVISION, XT4, XT5, XT6 (2019–2024) — 44 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This engineering information (EI Lite) is requesting technicians use the FPR App process in regard to finding coolant leaking around the Coolant Control Valve (CCV).

BUICK — ENVISTA, TRAX (2024) — 2 vehicle combinations

133000 VISIBILITY:POWER WINDOW DEVICES AND CONTROLS

This Preliminary information communicates to the technician the diagnostic direct for inoperative moveable windows.

BUICK — ACADIA, BLAZER, ENCLAVE, SIERRA 1500, SIERRA 3500, SILVERADO 1500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SILVERADO EV, SUBURBAN, TAHOE, TRAVERSE, XT5, YUKON (2023–2024) — 23 vehicle combinations

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

This Preliminary information communicates Engineering is investigating a no audio issue.