Technical Service Bulletins (TSB)

BUICK — CRUZE, ENCORE (2016–2017) — 4 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary Information communication provides information to the technician about vehicles that may be running rough with a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Code P0300 set. Technician will need to

BUICK — ACADIA, ATS, CAMARO, CT6, CTS, ENCLAVE, EQUINOX, IMPALA, LACROSSE, SRX, TERRAIN, TRAVERSE, XT5, XTS (2015–2017) — 38 vehicle combinations

103000 POWER TRAIN:AUTOMATIC TRANSMISSION

This bulletin provides a procedure to replace the crankshaft balancer if found the cause of the customers concerns of noises or sparks.

BUICK — 3500, 9-5, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVEO, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CHEYENNE, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, DTS, ELR, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G3, G5, G6, G8, H2, H3, HHR, I-290, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, MALIBU, N300, N300 MAX, ORLANDO, OUTLOOK, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TOPKICK, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VIBE, VOLT, VUE, W-SERIES, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2010–2018) — 445 vehicle combinations

020000 SUSPENSION

This informational bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operations.

BUICK — LACROSSE (2017)

162300 STRUCTURE:BODY:DOOR

This technical bulletin provides guidelines and repair information to correct a customer concern of a wind noise coming front the front door.

BUICK — ACADIA, ATS, ATS-V, AURA, AVALANCHE, CAMARO, CANYON, CAPRICE, CAPTIVA SPORT, COLORADO, CORVETTE, CRUZE, CT6, CTS, CTS-V, ENCLAVE, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G6, G8, H2, IMPALA, LACROSSE, MALIBU, ORLANDO, OUTLOOK, REGAL, SAVANA, SIERRA 1500, SILVERADO 1500, SONIC, SRX, SS, STS, SUBURBAN, TAHOE, TERRAIN, TORRENT, TRAVERSE, VUE, XLR, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON HYBRID, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2006–2017) — 897 vehicle combinations

060000 ENGINE (PWS)

This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressive

BUICK — ACADIA, ENCLAVE, EQUINOX, EXPRESS, IMPALA, LACROSSE, MALIBU, REGAL, SRX, TERRAIN, TRAVERSE, XTS (2009–2017) — 88 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This technical bulletin provides a procedure to Complete the Circuit/System Verification steps to correct a condition of Malfunction Indicator Lamp (MIL) - Check Engine Light On, DTC P182E.

BUICK — ACADIA, ALERO, ASTRA, ASTRO, AURA, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BONNEVILLE, BRAVADA, CAMARO, CANYON, CATERA, CAVALIER, CENTURY, CLASSIC, COBALT, COLORADO, CORVETTE, CTS, DEVILLE, DTS, ELDORADO, ENCLAVE, ENVOY, ENVOY XL, ENVOY XUV, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, FIREBIRD, G SERIES, G3, G5, G6, G8, GM, GRAND AM, GRAND PRIX, GTO, H2, H3, HHR, IMPALA, INTRIGUE, ION, JIMMY, JIMMY CLASSIC, L200, L300, LACROSSE, LESABRE, LUCERNE, LW200, M SERIES, M/L VAN, MALIBU, METRO, MONTANA, MONTANA EXT, MONTE CARLO, OUTLOOK, P SERIES, PARK AVENUE, PRIZM, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, RIVIERA, S10, SAFARI, SAVANA, SEVILLE, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILHOUETTE, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 3500 HD, SKY, SL, SOLSTICE, SONOMA, SRX, SSR, STS, SUBURBAN, SUNFIRE, TAHOE, TERRAZA, TOPKICK, TORRENT, TRACKER, TRAILBLAZER, TRANS SPORT, TRAVERSE, UPLANDER, V SERIES, VENTURE, VIBE, VUE, W SERIES, XLR, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2000–2013) — 729 vehicle combinations

118000 ELECTRICAL SYSTEM:SOFTWARE

This informational bulletin explains how to update the older Onstar module software to new software over GSA.

BUICK — 9-3, 9-5, 9-7X, ACADIA, ALERO, ASTRA, ASTRO, ATS, AURA, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BONNEVILLE, BRAVADA, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CATERA, CAVALIER, CENTURY, CLASSIC, COBALT, COLORADO, CORVETTE, CRUZE, CTS, DEVILLE, DTS, ELDORADO, ELR, ENCLAVE, ENCORE, ENVOY, ENVOY XL, ENVOY XUV, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, FIREBIRD, G SERIES, G3, G5, G6, G8, GRAND AM, GRAND PRIX, GTO, H2, H3, HHR, IMPALA, INTRIGUE, ION, JIMMY, JIMMY CLASSIC, L200, L300, LACROSSE, LESABRE, LUCERNE, LW200, MALIBU, METRO, MONTANA, MONTANA EXT, MONTE CARLO, OUTLOOK, P SERIES, PARK AVENUE, PRIZM, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, RIVIERA, S10, SAFARI, SAVANA, SEVILLE, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILHOUETTE, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 3500 HD, SKY, SOLSTICE, SONIC, SONOMA, SPARK, SPARK EV, SRX, SSR, STS, SUBURBAN, SUNFIRE, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRACKER, TRAILBLAZER, TRANS SPORT, TRAVERSE, TRAX, UPLANDER, V SERIES, VENTURE, VERANO, VIBE, VOLT, VUE, W SERIES, XLR, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2000–2015) — 708 vehicle combinations

118000 ELECTRICAL SYSTEM:SOFTWARE

This informational bulletin provides information for the GM of Canada OnStar Cellular Communication Upgrade to 3G/4G LTE for vehicles that may need an upgrade.

BUICK — ATS, CT6, CTS, ENVISION, ESCALADE, ESCALADE ESV, MALIBU, SRX, XTS (2014–2017) — 26 vehicle combinations

185000 VEHICLE SPEED CONTROL:CRUISE CONTROL

This technical bulletin provides a procedure to perform an update on the Radar Sensor Module to reduce possibilities of the Adaptive Cruise Control not working when there are no objects detected.

BUICK — ENCORE, TRAX (2013–2017) — 10 vehicle combinations

350000 EQUIPMENT

This Preliminary information communicates to dealers that the Bezel on the shifter can be serviced separately.

BUICK — ACADIA, CT6, ESCALADE, ESCALADE ESV, IMPALA, LACROSSE, MALIBU, REGAL, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, TAHOE, XT5, YUKON, YUKON XL (2013–2017) — 45 vehicle combinations

200000 WHEELS

This informational bulletin aids the technician on diagnosing possible vibrations in a vehicle, methods used for testing each scenario and documenting findings. This technical bulletin provides a procedure to install dust deflectors when re

BUICK — 9-7X, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, BOLT EV, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XL, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, G3, G5, G6, G8, GRAND PRIX, GTO, H2, H3, HHR, IMPALA, ION, LACROSSE, LESABRE, LUCERNE, MALIBU, MONTANA, MONTE CARLO, ORLANDO, OUTLOOK, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VERANO, VIBE, VOLT, VUE, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2006–2018) — 647 vehicle combinations

010000 STEERING

This preliminary information bulletin provides information for diagnosing a power steering fluid leak at the fluid reservoir.

BUICK — CAMARO, CRUZE, EQUINOX, LACROSSE, MALIBU, REGAL, TERRAIN, VERANO, VOLT (2013–2014) — 10 vehicle combinations

353500 EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

This Preliminary Information communication advises the technician that Engineering Has released the Navigation Map Data update for the listed model years.

BUICK — ACADIA, ATS, AVALANCHE, AVEO, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CASCADA, CITY EXPRESS, COLORADO, CORVETTE, CRUZE, CT6, CTS, ELR, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LUCERNE, MALIBU, N300 MAX, ORLANDO, REGAL, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SONIC, SPARK, SPARK EV, SRX, SS, SUBURBAN, TAHOE, TERRAIN, TRAVERSE, TRAX, VERANO, VOLT, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2012–2017) — 644 vehicle combinations

100000 POWER TRAIN

This Preliminary Information communication provides information to the technician about the rear view camera options on the vehicles equipped with rear view camera. The rear view camera brightness can be adjusted on some models while the tr

BUICK — ACADIA, ATS, CAMARO, CANYON, COLORADO, CT6, CTS, ENVISION, IMPALA, LACROSSE, MALIBU, REGAL (2013–2017) — 43 vehicle combinations

062000 ENGINE AND ENGINE COOLING:COOLING SYSTEM

This engineering information bulletin ends the need for information from the field on vehicles that have the concern of a noisy water pump.

BUICK — LACROSSE (2016–2017) — 2 vehicle combinations

030000 BRAKES (PWS)

This Preliminary information communicates that a customer may complain of a brake squeak or squeal noise. This noise will usually occur when the vehicle is first being moved after sitting for several hours and may not be duplicatable when t

BUICK — ACADIA, LACROSSE, XT5 (2017) — 3 vehicle combinations

092100 FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP

17086 - Service Update - Certain vehicles may have been built with an unnecessary gasket in the high pressure fuel pump assembly. The fuel pump may wear out early, and this could lead to degradation of engine performance over time. Dealers

BUICK — 1500, 2 SERIES, 3500, 3500HD, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, 6H, 7H, 7T SCHOOL BUS, 88, 9-2X, 9-3, 9-5, 9-7X, 98, ACADIA, ACHIEVA, ALERO, ALERO EXPORT, ALL, ALL PASSENGER CARS AND LI, ALLURE, APV, ASTRA, ASTRO, ATS, ATS-V, AURA, AURA HYBRID, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, B SERIES, B6 MEDIUM DUTY, B7, B7 CHASSIS, B7 MEDIUM DUTY, B7T042, BEAUVILLE, BEAUVILLE SPORT VAN, BELAIR, BERETTA, BLAZER, BLAZER EV, BOLT EUV, BOLT EV, BONNEVILLE, BRAVADA, BUICK, BUS, BUS CHASSIS, C SERIES, C SERIES (LIGHT), C SERIES(LIGHT), C SERIES(MEDIUM), C/K 1500, C/K 3500, C/K PICKUPS, C/K SERIES, C/K SUBURBAN (GMC), C10, C15, C1500, C1500 PICKUP, C1500 SUBURBAN, C20, C25, C2500, C2500 PICKUP, C2500 SUBURBAN, C30, C35, C3500, C3500 PICKUP, C3500HD, C4500, C5500, C6, C6500, C6H, C6H042, C7, C7500, C7H, C8500, CADILLAC, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CATERA, CAVALIER, CENTURY, CHEVROLET, CHEVROLET TRUCK, CHEVY VAN, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COBALT SS, COLORADO, CONVENTIONAL, CORSICA, CORVETTE, CORVETTE E-RAY, CORVETTE Z06, CORVETTE ZR1, CREW CAB, CRUZE, CT4, CT5, CT6, CTS, CTS-V, CUTLASS, DENALI, DEVILLE, DIAMOND EDITION, 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, EV1, EXPLORER, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY, EXPRESS CUTAWAY VAN, EXPRESS/G SPORTVAN, F SERIES, F6, F7, FIREBIRD, FLEETSIDE, FLEETWOOD, G SERIES, G VAN, G VAN BUS, G-VAN, G1, G10, G15, G1500, G2, G2 VAN, G20, G25, G2500, G3, G3 VAN, G30, G35, G3500, G4, G4500, G5, G6, G8, GENERAL MOTORS, GM, GMC, GMC TRUCK, GRAND AM, GRAND PRIX, GT, GTO, H SERIES, H1, H2, H2 SUT, H3, H3 SUT, H4, HHR, HUMMER EV, IMPALA, IMPALA (GMX 211), INCOMPLETE/CUTAWAY C3, INTRIGUE, ION, JIMMY, JIMMY CLASSIC, K SERIES, K1, K10, K15, K1500, K20, K25, K2500, K30, K35, K3500, KODIAK, 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, LUMINA MINIVAN, LW200, LYRIQ, M SERIES, M VAN, M/L, M/L SERIES, M/L VAN, MALIBU, MALIBU CLASSIC, MALIBU ECO, MALIBU HYBRID, MALIBU MAXX, MEDIUM DUTY, METRO, MONTANA, MONTANA EXT, MONTE CARLO, MOTOR HOME, N300, N300 MAX, ONIX, OPTRA, ORLANDO, OUTLOOK, P, P MODEL, P SERIES, P-30, P3, P30, P30 CHASSIS, P30 MOTORHOME CHASSIS, P32/42, P35, P3500, P6 CHASSIS, PARK AVENUE, PICK UP, PICKUP, PRIZM, PURSUIT, R SERIES, R30, RAINIER, RALLY, REGAL, REGAL TOURX, RELAY, RENDEZVOUS, RIVIERA, ROADMASTER, ROADTREK, S PICKUP, S SERIES, S UTILITY, S-10, S-BLAZER, S/T BLAZER, S/T JIMMY, S/T PICKUP, S/T SERIES, S10, S10 PICKUP, S15, SAFARI, SAFARI (GMC), SATURN, SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SC, SCHOOL BUS B7, SCHOOL BUS SERIES, SEVILLE, SIERRA, SIERRA 1500, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA 3500, SIERRA 3500 HD, SIERRA DENALI, SIERRA PU, SILHOUETTE, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 3500 HD, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SILVERADO EV, SILVERADO LT, SKY, SKYLARK, SL, SLS, SOLSTICE, SONIC, SONOMA, SONOMA CREW, SPARK, SPARK EV, SPORT VAN, SRX, SS, SSR, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, SUNBIRD, SUNFIRE, SW, T PICKUP, T SERIES, T UTILITY, T10, 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, TRUCK AND VAN UNK, U VAN, U-VAN, UPLANDER, V SERIES, VAN, VANDURA, VANDURA G2500, VANDURA SERIES, VECTRA, VENTURE, VERANO, VIBE, VOLT, VUE, VUE HYBRID, W SERIES, W SERIES C3 3500, W-SERIES, W3500, W4, W4500, W5, 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, Z-71, Z71 (1995–2024) — 5431 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

BUICK — CRUZE, ENCORE, MALIBU, VOLT (2016–2017) — 8 vehicle combinations

060000 ENGINE (PWS)

This Preliminary Information communication provides information to the technician related to utilizing crankcase pressure testing to aid in engine oil leak diagnostics. The technician is directed to perform the testing and to check related

BUICK — ACADIA, ATS, CAMARO, CANYON, COLORADO, CT6, CTS, LACROSSE, XT5 (2016–2017) — 60 vehicle combinations

020000 SUSPENSION

This informational bulletin advises the technician not to change the crankshaft balancer if it has the illusion of a wobble or vibration appearance.

BUICK — 3500, 9-3, 9-5, 9-7X, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVEO, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CHEYENNE, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G3, G5, G6, G8, H2, H3, HHR, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, MALIBU, MONTANA, N300, N300 MAX, ORLANDO, OUTLOOK, PURSUIT, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, TAHOE, TERRAIN, TOPKICK, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VERANO, VIBE, VOLT, VUE, W-SERIES, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2009–2018) — 502 vehicle combinations

110000 ELECTRICAL SYSTEM

This informational bulletin provides information on On rare occasions, a security code input message with SPS error code E5659, M5304, and/or M5530 may be displayed in TIS2web when the technician is programming any module. If this concern i

BUICK — ENVISION (2016–2017) — 2 vehicle combinations

020000 SUSPENSION

This technical bulletin provides repair information to correct a customer concern of hood flutter, shake or vibration at highway speeds or over rough road conditions.

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, 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, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVISTA, ENVOY, 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, 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, OPTRA, ORLANDO, OUTLOOK, REGAL, REGAL TOURX, S10, SANANA, SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SAVANNA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, 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) — 4124 vehicle combinations

100000 POWER TRAIN

This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.

BUICK — ACADIA, ATS, CAMARO, CT6, CTS, LACROSSE, XT5 (2016–2017) — 11 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Oil Leak Between Upper and Lower Oil Pan.

BUICK — LACROSSE (2017) — 2 vehicle combinations

263000 FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

This Preliminary information communicates thata vehicle may exhibit a Adaptive Cruise Control Unavailable and/or Lane Keep Assist Unavailable message. The technician may attempt to program the Active Safety Control Module (ASCM) and encount