Technical Service Bulletins (TSB)

BUICK — LACROSSE (2017–2018) — 4 vehicle combinations

118000 ELECTRICAL SYSTEM:SOFTWARE

This Preliminary information communicates to the technician, that they may be working on a concern of a Service Driver Assist System Message with B172E stored in history Do not replace any parts. Engineering is aware of the issue and a new

BUICK — 3500, 4500 SERIES, 9-3, 9-5, 9-7X, ACADIA, ASTRA, ASTRO, ATS, AURA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BOLT EV, BONNEVILLE, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CAVALIER, CENTURY, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, DEVILLE, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XL, ENVOY XUV, EPICA, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, F SERIES, G VAN BUS, G3, G5, G6, G8, GRAND AM, GRAND PRIX, GTO, H SERIES, H2, H3, HHR, IMPALA, ION, JIMMY CLASSIC, L200, L300, LACROSSE, LESABRE, LOW CAB 4500, LOW CAB 5500, LUCERNE, MALIBU, MONTANA, MONTE CARLO, N300, N300 MAX, OPTRA, ORLANDO, OUTLOOK, PARK AVENUE, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, S10, SAFARI, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 3500, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUNFIRE, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VENTURE, VERANO, VIBE, VOLT, VUE, W-SERIES, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2005–2018) — 747 vehicle combinations

134000 VISIBILITY:SUN/MOON ROOF ASSEMBLY

This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.

BUICK — ACADIA, ATS, CAMARO, CANYON, CAPRICE, COLORADO, CTS, ENCLAVE, EQUINOX, IMPALA, LACROSSE, SRX, TERRAIN, TRAVERSE, XTS (2015) — 45 vehicle combinations

060000 ENGINE (PWS)

18029 - Special Coverage. Certain vehicles listed above, may have an inoperative purge solenoid that could lead to excessive fuel vapors entering the combustion chamber from the fuel tank. This condition could result in no start, idle stall

BUICK — ENVISION, ESCALADE, SIERRA, SIERRA 1500, SIERRA 3500, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 4500HD, SUBURBAN, TAHOE, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2014–2019) — 86 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary Information communication provides information to the technician the steps to diagnose and repair the concern of the display is showing 32° F (0° C) after a battery or reprogramming a module. The outside temperature

BUICK — ATS, CT6, CTS, ENCLAVE, LACROSSE, REGAL, TRAVERSE, XT5 (2016–2018) — 16 vehicle combinations

060000 ENGINE (PWS)

This Preliminary information communicates there is an investigation into cause and correction for this group of DTC's setting together. (P0011, P0014, P0021, P0024).

BUICK — REGAL (2017–2019) — 9 vehicle combinations

060000 ENGINE (PWS)

18218 - Service Update. All vehicles, equipped with AWD (RPO F46), may have a condition in which the front portion of the propeller shaft slips out of the Power Transfer Unit (PTU) and drags on the roadway. The driver may hear a dragging no

BUICK — 3500, 4500 SERIES, 9-3, 9-5, 9-7X, ACADIA, ALERO, ALERO EXPORT, ASTRA, ASTRO, ATS, AURA, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, B7, B7 MEDIUM DUTY, BLAZER, BOLT EV, BONNEVILLE, BRAVADA, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CATERA, CAVALIER, CENTURY, CHEVY VAN, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CONVENTIONAL, CORVETTE, CRUZE, CT6, CTS, DEVILLE, DTS, ELDORADO, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XL, ENVOY XUV, EPICA, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, F SERIES, FIREBIRD, G SERIES, G VAN BUS, G3, G5, G6, G8, GM, GRAND AM, GRAND PRIX, GTO, H SERIES, H2, H3, HHR, IMPALA, INTRIGUE, ION, JIMMY, JIMMY CLASSIC, L SERIES, L200, L300, LACROSSE, LESABRE, LOW CAB 4500, LOW CAB 5500, LUCERNE, LUMINA, LW200, M SERIES, M VAN, M/L VAN, MALIBU, METRO, MONTANA, MONTANA EXT, MONTE CARLO, N300, N300 MAX, OPTRA, ORLANDO, OUTLOOK, P SERIES, PARK AVENUE, PRIZM, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, RIVIERA, S10, SAFARI, SAFARI (GMC), SAVANA, SEVILLE, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILHOUETTE, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 3500 HD, SKY, SL, SOLSTICE, SONIC, SONOMA, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUNFIRE, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRACKER, TRAILBLAZER, TRANS SPORT, TRAVERSE, TRAX, UPLANDER, V SERIES, VENTURE, VERANO, VIBE, VOLT, VUE, W SERIES, W-SERIES, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2000–2018) — 1076 vehicle combinations

357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER

This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi

BUICK — ENCLAVE, LACROSSE (2018) — 2 vehicle combinations

353000 EQUIPMENT:ELECTRICAL

This Preliminary Information communication provides information to the technician about vehicles that may have Circular Distortion in the Circle Icons and the Buick Tri-Shield Start Up Screen on the radio display. Dealer should advise the c

BUICK — ENCLAVE, IMPALA, TRAVERSE (2018) — 6 vehicle combinations

060000 ENGINE (PWS)

18186 - Customer Satisfaction Program. Certain 2018 model year Buick Enclave, Chevrolet Impala and Chevrolet Traverse vehicles, equipped with a 3.6L engine (RPO LFX or LFY), may have a condition where the piston oil control ring may have be

BUICK — ATS, CAMARO, COLORADO, CORVETTE, CRUZE, CT6, CTS, ENCLAVE, ENVISION, EQUINOX, ESCALADE, EXPRESS, LACROSSE, MALIBU, REGAL, SAVANA, SIERRA 3500, SILVERADO 2500, TAHOE, TERRAIN, TRAVERSE, YUKON (2018) — 22 vehicle combinations

100000 POWER TRAIN

This Preliminary Information communication advises the technician that the Product Quality Center has ended the part restriction for the T87A Transmission Control Module.

BUICK — ALERO, AURA, C SERIES, CAPTIVA, CAVALIER, COBALT, EQUINOX, G5, G6, GRAND AM, HHR, IMPALA, ION, LACROSSE, MALIBU, PURSUIT, REGAL, SKY, SOLSTICE, SUNFIRE, TERRAIN, VERANO, VUE (2002–2017) — 480 vehicle combinations

060000 ENGINE (PWS)

This Preliminary Information communication provides information to the technician about vehicles that have a loud tick or rattle noise under the hood at all operating conditions. Technician will need to check the lower and oil pressure to t

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, G VAN BUS, G3, G5, G6, G8, H2, H3, HHR, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LUCERNE, MALIBU, N300, N300 MAX, ORLANDO, OUTLOOK, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, 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) — 822 vehicle combinations

353000 EQUIPMENT:ELECTRICAL

This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone cont

BUICK — 3500, ACADIA, ATS, AVEO, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CASCADA, CHEYENNE, CITY EXPRESS, COLORADO, CORVETTE, CRUZE, CT6, CTS, ELR, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, EXPRESS, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, MALIBU, N300, N300 MAX, ORLANDO, REGAL, S10, SAVANA, SIERRA, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 2500, SILVERADO 3500, SONIC, SPARK, SPARK EV, SRX, SS, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, XT5, XTS, YUKON, YUKON XL (2016–2018) — 288 vehicle combinations

060000 ENGINE (PWS)

This Preliminary Information communication provides the technician with steps on how to program an Engine Control Module when getting a Service Programming System error code E4491 or E4423. In some cases Techline Customer Support Center may

BUICK — ACADIA, ATS, BOLT EV, CAMARO, CANYON, COLORADO, CORVETTE, CRUZE, CT6, CTS, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, IMPALA, LACROSSE, MALIBU, REGAL, SIERRA 3500, SILVERADO 2500, SONIC, SPARK, SUBURBAN, TAHOE, TERRAIN, TRAVERSE, TRAX, VOLT, XT5, XTS, YUKON DENALI (2018) — 32 vehicle combinations

350000 EQUIPMENT

This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, and displays are placed on restriction through the General Motors Technical Assista

BUICK — ACADIA, CANYON, COLORADO, CRUZE, ENCLAVE, ENVISION, EQUINOX, IMPALA, MALIBU, REGAL, TRAVERSE (2017–2018) — 36 vehicle combinations

117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

This Preliminary information communicates that acustomer may complain of the Driver Information Center(DIC) intermittently flickering or going blank. It may be noted that this only seems to occur when playing songs via IHeart or Pandora. Th

BUICK — ACHIEVA, ALERO, ALERO EXPORT, ASTRO, AURORA, AVALANCHE 1500, AVALANCHE 2500, AZTEK, B6 MEDIUM DUTY, B7, B7 CHASSIS, B7 MEDIUM DUTY, BERETTA, BLAZER, BONNEVILLE, BRAVADA, BUS CHASSIS, CAMARO, CAPRICE, CATERA, CAVALIER, CENTURY, CHEVY VAN, CONVENTIONAL, CORSICA, CORVETTE, CREW CAB, CUTLASS, DEVILLE, ELDORADO, ENVOY, ESCALADE, ESCALADE EXT 1500, EXPRESS, FIREBIRD, FLEETWOOD, G SERIES, G VAN, G VAN BUS, GM, GMC TRUCK, GRAND AM, GRAND PRIX, H SERIES, IMPALA, INTRIGUE, JIMMY, L SERIES, LESABRE, LUMINA, LUMINA APV, LW200, M SERIES, M VAN, M/L VAN, MALIBU, METRO, MONTANA, MONTANA EXT, MONTE CARLO, P, P SERIES, P3, P30 CHASSIS, PARK AVENUE, PICKUP, PRIZM, REGAL, RENDEZVOUS, RIVIERA, ROADMASTER, S PICKUP, S/T PICKUP, S10, S10 PICKUP, SAFARI, SAFARI (GMC), SAVANA, SEVILLE, SILHOUETTE, SILVERADO 1500 HD, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 3500 HD, SKYLARK, SL, SONOMA, SUBURBAN, SUNBIRD, SUNFIRE, TAHOE, TRACKER, TRAILBLAZER, TRANS SPORT, V SERIES, VENTURE, VUE, W SERIES, W-SERIES, YUKON, YUKON DENALI, YUKON XL (1994–2002) — 1572 vehicle combinations

350000 EQUIPMENT

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock c

BUICK — LACROSSE (2014–2016) — 3 vehicle combinations

122000 EXTERIOR LIGHTING:FOG LIGHTS

This Preliminary Information communication advises the technician how to determine if a vehicle is equipped with fog lights. Technician will need to check the Regular Production Option Code list. If the Regular Production Option Code has T3

BUICK — LACROSSE (2018) — 4 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates that a p0A90 could be caused by a missing Stop bolt and Brace. This is for the lower tensioner that can tavel to far with out the stop.

BUICK — 3500, 4500 SERIES, 9-3, 9-5, 9-7X, ACADIA, ALERO, ALERO EXPORT, ASCENDER, ASTRA, ASTRO, ATS, AURA, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, B7, B7 MEDIUM DUTY, BLAZER, BOLT EV, BONNEVILLE, BRAVADA, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CATERA, CAVALIER, CENTURY, CHEVY VAN, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CONVENTIONAL, CORVETTE, CRUZE, CT6, CTS, DEVILLE, DTS, ELDORADO, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XL, ENVOY XUV, EPICA, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, F SERIES, F-SERIES, FIREBIRD, G SERIES, G VAN BUS, G3, G5, G6, G8, GM, GRAND AM, GRAND PRIX, GTO, H SERIES, H2, H3, HHR, HOMBRE, I-290, I-350, IMPALA, INTRIGUE, ION, JIMMY, JIMMY CLASSIC, L SERIES, L-SERIES, L200, L300, LACROSSE, LESABRE, LOW CAB 4500, LOW CAB 5500, LUCERNE, LUMINA, LW200, M SERIES, M VAN, M/L VAN, MALIBU, METRO, MONTANA, MONTANA EXT, MONTE CARLO, N-SERIES, N300, N300 MAX, OPTRA, ORLANDO, OUTLOOK, P SERIES, PARK AVENUE, PRIZM, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, RIVIERA, RODEO, S10, SAFARI, SAFARI (GMC), SAVANA, SEVILLE, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILHOUETTE, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 3500 HD, SKY, SL, SOLSTICE, SONIC, SONOMA, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUNFIRE, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRACKER, TRAILBLAZER, TRANS SPORT, TRAVERSE, TRAX, TROOPER, UPLANDER, V SERIES, VENTURE, VERANO, VIBE, VOLT, VUE, W SERIES, W-SERIES, WAVE, XL7, XLR, XT5, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2000–2018) — 2254 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary Information communication provides information to the technician about connectivity concerns when connecting an Apple device via USB cord. Technician should insure the customer is using an original equipment manufacturer Ap

BUICK — ACADIA, ATS, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, COBALT, COLORADO, CORVETTE, CRUZE, CT6, CTS, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, HHR, IMPALA, LACROSSE, MALIBU, OUTLOOK, REGAL, SIERRA 1500, SILVERADO 1500, SKY, SOLSTICE, SRX, STS, SUBURBAN, TAHOE, TERRAIN, TRAVERSE, TRAX, VERANO, XT5, XTS, YUKON (2007–2017) — 356 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates to the dealer an issue where the vehicle's engine may crank over unprompted and not start afterward. This is the result of hooking up the Active Fuel Injector Tool incorrectly on vehicles equip

BUICK — ASTRA, AURA, AZTEK, BONNEVILLE, CASCADA, CENTURY, ENCLAVE, ENCORE, ENVISION, FIREBIRD, G3, G5, G6, G8, GRAND AM, GRAND PRIX, GTO, H2, H3, ION, L200, L300, LACROSSE, LESABRE, LS, LUCERNE, LW200, MONTANA, OUTLOOK, PARK AVENUE, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, RIVIERA, SKY, SL, SOLSTICE, SUNFIRE, TERRAZA, TORRENT, TRANS SPORT, VERANO, VIBE, VUE (2000–2018) — 780 vehicle combinations

020000 SUSPENSION

This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Di

BUICK — LACROSSE, SIERRA 1500, SILVERADO 1500 (2016–2018) — 21 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary Information communication advises the technician that the Technical Assistance Center TAC has a part restriction for the Generator Control Module (GCM). The dealer technician is advised to call the GMTechnical AssistanceCen

BUICK — LACROSSE (2018–2019) — 5 vehicle combinations

031000 SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

18175 - Service Update. vehicles may have the incorrect bolt installed on the brake pedal assembly box. Inspect and replace bolts.

BUICK — ACADIA, CANYON, COLORADO, CRUZE, ENCLAVE, ENVISION, EQUINOX, IMPALA, MALIBU, REGAL, TRAVERSE (2017–2019) — 63 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates that acustomer may complain of the Driver Information Center(DIC) intermittently flickering or going blank. It may be noted that this only seems to occur when playing songs via IHeart or Pandora. Th

BUICK — CRUZE, ENCORE, EQUINOX, MALIBU, SPARK, TERRAIN, TRAX, VOLT (2016–2019) — 75 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates the possibility of the timing chain tesnioner gasket being improperly installed or mis-positioned after major engine repairs causing a low engine oil pressure and dtc p06DE.