Technical Service Bulletins (TSB)

BUICK — ACADIA, BLAZER, CAMARO, CANYON, COLORADO, ENCLAVE, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, XT4, XT5, XT6 (2022–2023) — 75 vehicle combinations

110000 ELECTRICAL SYSTEM

Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain vehicles, built beginning December 2, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notifie

BUICK — ACADIA, BLAZER, CT4, CT5, ENCLAVE, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, TAHOE, TRAVERSE, XT5, XT6, YUKON, YUKON XL (2022) — 18 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 model year vehicles listed above, built beginning November 17, 2021. The affected veh

BUICK — ENCORE GX, TRAILBLAZER, TRAX (2020–2024) — 8 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A.

BUICK — CT5, CT6, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, SUBURBAN, SUBURBAN 1500, TAHOE, TERRAIN, XT4, YUKON, YUKON XL (2019–2023) — 76 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to dealers to Replace Video Processing Module (VPM) When Programming Fails.

BUICK — ACADIA, BLAZER, BOLT EV, CAMARO, CANYON, COLORADO, CT4, CT5, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, EXPRESS, MALIBU, SAVANA, SIERRA 1500, SILVERADO 1500, SILVERADO 2500, SPARK, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, XT4, XT5, XT6, YUKON (2021–2022) — 57 vehicle combinations

353000 EQUIPMENT:ELECTRICAL

This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.

BUICK — ENVISTA, TRAX (2024) — 23 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides a procedure to correct customer concerns of a Roof Related Water Leak, Key Fob Inoperative, and/or Various Remote Control Door Lock Receiver (RCDLR) Concerns.

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, SKY, SOLSTICE, SONIC, SPARK, SRX, SS, STS, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VIBE, VOLT, VUE, XT4, XT5, XT6, XTS, YUKON (2010–2022) — 468 vehicle combinations

192000 TIRES:SIDEWALL

This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer

BUICK — 9-3, 9-5, 9-7X, ACADIA, ALLURE, ASTRA, ATS, ATS-V, AURA, AURA HYBRID, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, BLAZER, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CHEYENNE, CITY EXPRESS, COBALT, COBALT SS, COLORADO, CORVETTE, CORVETTE ZR1, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DENALI, DTS, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVISTA, ENVOY, ENVOY 360, 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, G VAN BUS, G3, G3500, G4500, G5, G6, G8, H2, H2 SUT, H3, H3 SUT, HHR, IMPALA, LACROSSE, LESABRE, LUCERNE, LUMINA, MALIBU, MALIBU ECO, MALIBU HYBRID, MONTANA, MONTE CARLO, N300, N300 MAX, ONIX, OPTRA, ORLANDO, OUTLOOK, PURSUIT, 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, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TORRENT, TRAILBLAZER, TRAILBLAZER 360, 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 (2009–2024) — 1880 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This service bulletin provides information to dealership personnel on automatic transmission shift and engine driveability concerns and/or MIL ON due to aftermarket oil bath air filter use.

BUICK — ACADIA, BLAZER, CAMARO, ENCLAVE, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, XT4, XT5, XT6 (2022–2023) — 26 vehicle combinations

110000 ELECTRICAL SYSTEM

Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain vehicles, built beginning December 2, 2021. The affected vehicle owners should have been made aware of th

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

010000 STEERING

Customer Satisfaction Program. Message sent to dealers to announce the final VINs were released.

BUICK — ENVISION (2022–2023) — 2 vehicle combinations

980000 UNKNOWN OR OTHER

Customer Satisfaction Program - Certain vehicles may have a condition in which the customer was overcharged for a driver seat massage, a driver 4-way power lumbar, and a front passenger 4-way power lumbar that were not included. Dealers wil

BUICK — ENVISION (2022–2023) — 2 vehicle combinations

980000 UNKNOWN OR OTHER

Customer Satisfaction Program - Certain vehicles may have a condition in which the customer was overcharged for a driver 4-way power lumbar and a front passenger 4-way power lumbar that were not included. Dealers will provide the customer w

BUICK — ENVISION (2022–2023) — 2 vehicle combinations

980000 UNKNOWN OR OTHER

Customer Satisfaction Program - Certain vehicles may have a condition in which the customer was overcharged for a driver 4-way power lumbar that was not included. Dealers will provide the customer with a reimbursement check in the amount of

BUICK — 3500HD, 9-3, 9-5, 9-7X, ACADIA, ALLURE, ASTRA, ATS, ATS-V, AURA, AURA HYBRID, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, BLAZER, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CITY EXPRESS, COBALT, COBALT SS, COLORADO, CORVETTE, CORVETTE Z06, CORVETTE ZR1, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DENALI, DTS, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVISTA, ENVOY, ENVOY 360, ENVOY DENALI, 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, G VAN BUS, G1500, G3, G3500, G4, G4500, G5, G6, G8, GRAND PRIX, GT, GTO, H2, H2 SUT, H3, H3 SUT, H4, HHR, IMPALA, ION, LACROSSE, LESABRE, LUCERNE, LUMINA, MALIBU, MALIBU CLASSIC, MALIBU ECO, MALIBU HYBRID, MALIBU MAXX, MONTANA, MONTE CARLO, N300, N300 MAX, ONIX, OPTRA, ORLANDO, 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, SKY, SOLSTICE, SONIC, SPARK, SRX, SS, SSR, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TERRAZA, TORRENT, TRAILBLAZER, TRAILBLAZER 360, 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 (2007–2024) — 1147 vehicle combinations

100000 POWER TRAIN

This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is

BUICK — ENCLAVE, TRAVERSE (2021) — 2 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Special Coverage - certain vehicles may have a condition that could cause the mounting bracket on the front exhaust pipe to separate from the pipe.A If this condition occurs, a hole may develop in the exhaust pipe at the bracket location,

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, 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 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, ONIX, OPTRA, ORLANDO, 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, 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) — 1468 vehicle combinations

200000 WHEELS

This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).

BUICK — ENCORE, TRAX (2017–2022) — 12 vehicle combinations

103110 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE

This Preliminary Information communication advises the technician of a normal characteristic of the neutral idle feature on a 6T40 transmission

BUICK — ACADIA, ENCLAVE, TRAVERSE, XT5 (2017–2019) — 8 vehicle combinations

010000 STEERING

This Preliminary information communicates a technician may replace a steering gear and after programming it, find communication codes set and a loss of steering assist. The technician is advised to place a SPAC case on the new part number n

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, ENVOY, EQUINOX, ESCALADE, ESCALADE ESV, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY VAN, G3, G5, G6, GRAND PRIX, H2, H3, HHR, IMPALA, ION, LACROSSE, LUCERNE, MALIBU, MONTANA, MONTE CARLO, OUTLOOK, RAINIER, REGAL, RELAY, RENDEZVOUS, SAVANA, SAVANA 2500, SAVANA 3500, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SKY, SOLSTICE, SONIC, SPARK, SRX, SS, STS, SUBURBAN, TAHOE, TERRAIN, TERRAZA, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VERANO, VIBE, VOLT, VUE, XLR, XT4, XT5, XT6, XTS, YUKON (2007–2022) — 1308 vehicle combinations

100000 POWER TRAIN

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble

BUICK — ENCLAVE, TRAVERSE (2021–2023) — 12 vehicle combinations

110000 ELECTRICAL SYSTEM

This technical bulletin provides repair information to correct a customer concern of Water Intrusion at Front Door Harness Connector X500 and/or X600.

BUICK — ENCORE GX, TRAILBLAZER (2023) — 2 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Engineering Information (EI) Lite instructs the technician that if they encounter a vehicle where a customer comments on a coolant leak that drives a warrantable item type of repair on any of the listed Models, use the Field Product Re

BUICK — LACROSSE, XT5 (2017–2019) — 6 vehicle combinations

100000 POWER TRAIN

This Preliminary information communicates that a technician may find U135A and/or P26C8 set after replacing the Transmission Range Control module. The tech is advised not to perform any further repairs to the vehicle. A bulletin will be rel

BUICK — ENCLAVE, TRAVERSE (2020–2023) — 8 vehicle combinations

220000 SEATS

This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the 3rd row release strap has fray marks and/or does not release to fold down the s

BUICK — BLAZER, ENCLAVE, ENCORE, ENCORE GX, ENVISTA, TRAILBLAZER, TRAVERSE, TRAX (2020–2024) — 53 vehicle combinations

120000 EXTERIOR LIGHTING

This informational bulletin provides information on dark spots in the headlamp pattern when the vehicle is pulled up to a wall or garage.

BUICK — 3500, 4500, 4500HD, 5500HD, 6500HD, ACADIA, ATS, ATS-V, AVEO, BLAZER, BOLT EUV, BOLT EV, C3500, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CASCADA, CHEYENNE, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DENALI, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, EQUINOX EV, ESCALADE, ESCALADE ESV, EXPRESS, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY VAN, G3500, G4500, HUMMER EV, IMPALA, LACROSSE, 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, 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 (2015–2024) — 543 vehicle combinations

120000 EXTERIOR LIGHTING

This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.