Technical Service Bulletins (TSB)

BUICK — ACADIA, BLAZER, BOLT EUV, BOLT EV, CAMARO, CT6, ENCLAVE, ENCORE GX, EQUINOX, LACROSSE, SIERRA 1500, SILVERADO 1500, TERRAIN, TRAVERSE, XT4, XT5, XT6 (2019–2022) — 296 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to correct a customer concern of Blue or Black Screen and Service Rear Vision System Message on Radio Display Shifting into Reverse.

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

060000 ENGINE AND ENGINE COOLING

Special Coverage Adjustment. 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 bracke

BUICK — ENCORE GX, TRAILBLAZER (2020–2022) — 11 vehicle combinations

030000 BRAKES (PWS)

This service bulletin provides a procedure to correct a condition of Front Brake Squeal Noise Heard During Light Brake Pedal Application.

BUICK — 3500, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, 6H, 7H, 88, 9-2X, 9-3, 9-4X, 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, BONNEVILLE, BRAVADA, 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, 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, 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, SAVANNA, 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, 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 (2000–2024) — 9333 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.

BUICK — 3500 SERIES, 4500, 4500HD, 4500XD, 5500HD, 5500XD, ACADIA, BLAZER, CAMARO, CANYON, COLORADO, CORVETTE, CT4, CT5, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, ESCALADE HYBRID, EXPRESS, MALIBU, SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SIERRA, SIERRA 1500, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA 3500, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SPARK, SUBURBAN, SUBURBAN 1500, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, XT4, XT5, XT6, XTS, YUKON, YUKON XL, YUKON XL 1500, YUKON XL 2500, YUKON XL DENALI (1976–2022) — 1292 vehicle combinations

073000 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM

This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

BUICK — 3500, 4500, 4500HD, 4500XD, 5500HD, 5500XD, ACADIA, CANYON, COLORADO, CT4, CT5, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, ESCALADE HYBRID, EXPRESS, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SPARK, SUBURBAN, SUBURBAN 1500, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, XT4, XT5, XT6, YUKON, YUKON XL (1999–2022) — 636 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management.

BUICK — ENCORE GX, TRAILBLAZER (2020–2022) — 10 vehicle combinations

030000 BRAKES (PWS)

This technical bulletin provides repair information to correct a customer concern of Rotor Position Sensor (RPS) Software.

BUICK — ENCORE, TRAX (2014–2022) — 18 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates tips for the technician to locate the source of an open fuse F6DA.

BUICK — CT4, ENCORE GX, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, TRAILBLAZER (2019–2022) — 64 vehicle combinations

060000 ENGINE (PWS)

This Preliminary information communicates the possibility of dtc p06DD due to low or no oil pressure immediately following engine oil and filter change due to oil filter and main oil gallery being drained or empty.

BUICK — ACADIA, ENCLAVE, TRAVERSE, XT5, XT6 (2018–2022) — 36 vehicle combinations

160000 STRUCTURE

This informational bulletin provides information for dealers/technicians on a customer commenting on liftgate actuator showing a leaking residue on strut.

BUICK — ENCORE, TRAX (2014–2019) — 12 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates tips for the technician to locate the source of an open fuse F6DA.

BUICK — CT4, CT5, ENVISION, ESCALADE, ESCALADE ESV, SUBURBAN, SUBURBAN 1500, TAHOE, YUKON, YUKON XL (2020–2022) — 46 vehicle combinations

110000 ELECTRICAL SYSTEM

This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a Forward Collision Icon Message Illuminated on Driver Information Center (DIC) an

BUICK — ACADIA, BLAZER, ENCLAVE, TRAVERSE, XT5, XT6 (2021) — 6 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This technical bulletin provides repair information to correct a customer concern of a Check Engine Lamp Illuminated in the DIC (Driver Information Center), Temperature Gauge Inaccurate, and/or Cooling Fans Continue Running after Vehicle is

BUICK — ACADIA, ATS, BLAZER, CAMARO, CANYON, COLORADO, CT5, CT6, CTS, CTS-V, LACROSSE, REGAL, REGAL TOURX, XT5, XT6 (2016–2022) — 198 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This service bulletin advises the technician of a diagnostic test for a possible issue with a damaged OCV solenoid that may cause an oil leak and misfire, illuminating the MIL and setting DTCs P0300, P0302 and/or P0305.

BUICK — ATS, ATS-V, CAMARO, CTS, CTS-V, ENVISION, EQUINOX, MALIBU, REGAL, TERRAIN, TRAVERSE (2013–2019) — 96 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This service bulletin provides repair procedures, depending on model year, to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated with DTC P0172, P06DE and/or P0521 Set.

BUICK — CAMARO, ENVISION, EQUINOX, MALIBU, REGAL, TERRAIN (2020–2022) — 33 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This service bulletin provides a repair procedure to correct a customer concern of a MIL Illuminated with DTC P0172, P06DE and/or P0521 Set.

BUICK — ENCORE GX, TRAILBLAZER (2020–2022) — 50 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This bulletin provides a procedure to locate a possible short in the wiring harness near the MAF sensor.

BUICK — ENCORE GX, TRAILBLAZER (2020–2022) — 15 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Check Engine Lamp On and/or Reduced Engine Power message displayed on th

BUICK — ACADIA, BLAZER, CANYON, COLORADO, ENCLAVE, TRAVERSE, XT5, XT6 (2020–2023) — 300 vehicle combinations

030000 BRAKES (PWS)

This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.

BUICK — ENCLAVE (2022) — 2 vehicle combinations

110000 ELECTRICAL SYSTEM

This technical bulletin provides repair information to correct a customer concern of Inoperative Radio Features for the App Store, Connected Navigation, Wifi and HotSpot Functionality.

BUICK — ATS-V, CAMARO, CORVETTE, CT4, CT5, CTS, CTS-V, REGAL, SS (2012–2022) — 86 vehicle combinations

020000 SUSPENSION

This service bulletin provides information on summer tire performance and tire cold weather cracking.

BUICK — ACADIA, BLAZER, BOLT EUV, BOLT EV, CAMARO, CANYON, COLORADO, CORVETTE, CT4, CT5, ENCLAVE, ENCORE GX, ENVISION, ESCALADE, ESCALADE ESV, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, TRAILBLAZER, TRAVERSE, XT4, XT5, XT6, YUKON, YUKON XL (2022) — 183 vehicle combinations

030000 BRAKES (PWS)

This informational bulletin provides information for dealers/technicians on Changes to Park Assist and Reverse Automatic Braking for Certain 2022 Passenger Car, Crossover, SUV, and Truck Models Equipped with RPO 00Y and/or 00Z.

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, SUBURBAN 1500, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, XT4, XT5, XT6, YUKON, YUKON XL (2022) — 72 vehicle combinations

110000 ELECTRICAL SYSTEM

This informational bulletin provides information for dealers/technicians on Changes to Front Heated and/or Ventilated Seats, and Second Row Outboard Heated Seats for Certain 2022 Passenger Car, Crossover, SUV, and Truck Models Equipped with

BUICK — ACADIA, BLAZER, BOLT EUV, BOLT EV, CT4, CT5, ENCLAVE, ENCORE GX, ENVISION, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, SUBURBAN 1500, TAHOE, TRAILBLAZER, TRAVERSE, XT4, XT5, XT6, YUKON, YUKON XL (2022) — 56 vehicle combinations

010000 STEERING

This informational bulletin provides information for dealers/technicians on Changes to Heated Steering Wheel for Certain 2022 Passenger Car, Crossover, SUV, and Truck Models Equipped with RPO 00G.

BUICK — CAMARO, CASCADA, CORVETTE, G6, XLR (2004–2022) — 80 vehicle combinations

160000 STRUCTURE

This Preliminary Information communicates helpful information on diagnosing general customer concerns related to a power folding top.