Technical Service Bulletins (TSB)

BUICK — ENCORE GX, TRAILBLAZER (2021–2022) — 12 vehicle combinations

061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

This technical bulletin provides a procedure to correct a customer concern of a Pop Noise Heard on Heavy Acceleration Only.

BUICK — ENCLAVE, TRAVERSE (2018–2020) — 18 vehicle combinations

162600 STRUCTURE:BODY:HATCHBACK/LIFTGATE

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

BUICK — CORVETTE, CT4, CT5, ENVISION (2021–2022) — 16 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 the Check Engine Lamp illuminated on the Driver Information Center (DIC) to determ

BUICK — CRUZE, ENCORE, EQUINOX, MALIBU, SPARK, TERRAIN, TRAX (2016–2021) — 81 vehicle combinations

063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

This service bulletin provides diagnostic/repair information to correct customer concerns of a Crank No Start or Extended Crank, Malfunction Indicator Lamp (MIL) Illuminated.

BUICK — ENVISION (2021–2022) — 4 vehicle combinations

061400 ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

Engineering Information.

BUICK — ENVISION (2021–2022) — 6 vehicle combinations

061400 ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

Engineering Information.

BUICK — ENCORE GX, TRAILBLAZER (2020–2022) — 25 vehicle combinations

050000 PARKING BRAKE

This Preliminary information communicates to the dealer if the lane keep assist and forward collision alert are inoperative, both indicators may be flashing on and off while driving. When pressing button to turn on the lane keep assist they

BUICK — ENCORE GX, TRAILBLAZER (2020–2022) — 16 vehicle combinations

010000 STEERING

This service bulletin provides repair information to correct a customer concern of Service Power Steering DIC Message, DTC C0051 58 - Steering Wheel Angle Sensor Error Set.

BUICK — ACADIA, BLAZER, CT4, CT5, ENCORE GX, MALIBU, SIERRA 1500, SILVERADO 1500, TRAILBLAZER, XT4, XT5, XT6 (2019–2022) — 186 vehicle combinations

061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

This service bulletin provides a service procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3075 Set.

BUICK — CRUZE, ENCORE, EQUINOX, MALIBU, TERRAIN, TRAX (2016–2022) — 90 vehicle combinations

060000 ENGINE (PWS)

This Preliminary information communicates the possibility of dtc p0299 p0234 setting due to oil/moisture cndensate freezing in Turbocharger Wastegate Regulator Solenoid Valve (TCV) during cold weather driving

BUICK — ACADIA, BLAZER, ENCLAVE, TRAVERSE, XT5, XT6 (2020–2021) — 24 vehicle combinations

054000 PARKING BRAKE:ELECTRICAL

This technical bulletin provides repair information to correct a customer concern of Electronic Park Brake Applying Intermittently After Vehicle Shutdown without DTC?s.

BUICK — ENVISION (2021) — 3 vehicle combinations

060000 ENGINE (PWS)

This bulletin advises the tech to replace the engine mounts if found the cause of the popping noise.

BUICK — ENCORE GX, TRAILBLAZER (2020–2021) — 8 vehicle combinations

060000 ENGINE (PWS)

This Preliminary information communicates to the dealers information related to isolating a potential engine wiring harness issue causing a MIL on with P0521.

BUICK — ACADIA, BLAZER, CT4, CT5, ENCORE, ENCORE GX, SIERRA 1500, SILVERADO 1500, XT4, XT5 (2019–2022) — 198 vehicle combinations

061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set.

BUICK — CRUZE, ENCORE, EQUINOX, MALIBU, TERRAIN, TRAX (2018–2022) — 44 vehicle combinations

060000 ENGINE (PWS)

This service bulletin provides repair information to correct a customer concern of an Engine Misfire, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300 Set.

BUICK — ENCORE GX, TRAILBLAZER (2020–2021) — 8 vehicle combinations

060000 ENGINE (PWS)

This Preliminary information communicates to the dealers information related to isolating a potential engine wiring harness issue causing a MIL on with P0521.

BUICK — 9-7X, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, BLAZER, BOLT EUV, BOLT EV, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVOY, ENVOY XL, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, G3, G5, G6, G8, GRAND PRIX, GTO, H2, H3, HHR, HUMMER EV, IMPALA, ION, LACROSSE, LESABRE, LUCERNE, MALIBU, MONTANA, MONTE CARLO, N300, N300 MAX, OUTLOOK, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, S10, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 4500HD, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, TAHOE, TERRAIN, TERRAZA, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VERANO, VIBE, VOLT, VUE, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2006–2022) — 1518 vehicle combinations

190000 TIRES

This service bulletin provides information for dealers/technicians on Tire/Wheel Characteristics (Vibration, Balance, Shake, Flat Spotting) of GM Original Equipment Tires.

BUICK — 3500, 4500, 4500 SERIES, 4500HD, 4500XD, 5500HD, 5500XD, 9-7X, ACADIA, ALERO, ASTRA, ASTRO, ATS, AURA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BOLT EUV, BOLT EV, BONNEVILLE, BRAVADA, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CAVALIER, CENTURY, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DEVILLE, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVOY, ENVOY XL, ENVOY XUV, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, G VAN BUS, G3, G5, G6, G8, GRAND AM, GRAND PRIX, GTO, H2, H3, HHR, HUMMER EV, IMPALA, ION, JIMMY, JIMMY CLASSIC, L200, L300, LACROSSE, LESABRE, LOW CAB FORWARD 6500, LUCERNE, MALIBU, MONTANA, MONTANA EXT, MONTE CARLO, OUTLOOK, PARK AVENUE, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, S10, SAFARI, SAVANA, SEVILLE, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILHOUETTE, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 4500HD, SILVERADO 6500HD, SKY, SOLSTICE, SONIC, SONOMA, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUNFIRE, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRACKER, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VENTURE, VERANO, VIBE, VOLT, VUE, W-SERIES, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2004–2022) — 949 vehicle combinations

356230 EQUIPMENT ADAPTIVE/MOBILITY:VEHICLE CONTROLS:STEERING

This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure, when diagnosing vibration concerns.

BUICK — CORVETTE, CT4, CT5, ENVISION, ESCALADE, ESCALADE ESV, SUBURBAN, TAHOE, YUKON, YUKON XL (2020–2021) — 36 vehicle combinations

060000 ENGINE (PWS)

This service bulletin provides a repair procedure to correct a customer concern of a No Fob detected message on Driver Information Center (DIC) and/or No Crank / No Start condition.

BUICK — CAMARO, CT4, CT5, ENCORE GX, ENVISION, EQUINOX, SIERRA 1500, SILVERADO 1500, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, YUKON XL (2021) — 26 vehicle combinations

263000 FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

This Preliminary information communicates an issue with adaptive cruise and lane keep assist inoperative due to an internal issue with the front view windshield camera. Dealers are to replace the camera.

BUICK — ENCORE, TRAX (2019–2020) — 36 vehicle combinations

010000 STEERING

This service bulletin provides repair information to correct customer concerns of Unwanted Front Windshield Wiper Swipe, Cruise Control Wont Turn On, Steering Wheel Controls Inoperative, DTCs P155A SYM00, B1529 SYM03.

BUICK — ENVISION (2021)

100000 POWER TRAIN

This Preliminary information communicates that the TCM part restriction has ended.

BUICK — CRUZE, ENCORE, EQUINOX, MALIBU, TERRAIN, TRAX (2016–2022) — 30 vehicle combinations

061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

This Preliminary information communicates the possibility of dtc p0299 p0234 setting due to oil/moisture cndensate freezing in Turbocharger Wastegate Regulator Solenoid Valve (TCV) during cold weather driving

BUICK — ENVISION (2021) — 2 vehicle combinations

130000 VISIBILITY/WIPER (PWS)

This Preliminary information communicates a condition where the wipers will be stuck on one speed.

BUICK — CORVETTE, CT4, CT5, ENVISION, ESCALADE, SUBURBAN, TAHOE, YUKON (2020–2021) — 10 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates information on a No Crank / No Start concern caused by a No Fob Detected message caused by an internal fault of the BCM. Dealer is to replace the BCM to correct this concern.