Technical Service Bulletins (TSB)

BUICK — CRUZE, ENCORE, SONIC, TRAX (2011–2019) — 28 vehicle combinations

061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided

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) — 1078 vehicle combinations

060000 ENGINE (PWS)

This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related component

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, LOW CAB FORWARD 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) — 1079 vehicle combinations

110000 ELECTRICAL SYSTEM

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 — 9-7X, ACADIA, ASTRA, ASTRO, ATS, AURA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BOLT EV, BONNEVILLE, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CASCADA, CAVALIER, CENTURY, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, DEVILLE, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XL, ENVOY XUV, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, G3, G5, G6, G8, GRAND AM, GRAND PRIX, GTO, H2, H3, HHR, IMPALA, ION, JIMMY CLASSIC, L200, L300, LACROSSE, LESABRE, LUCERNE, MALIBU, MONTANA, MONTE CARLO, OUTLOOK, PARK AVENUE, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, SAFARI, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, 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, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2005–2020) — 804 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

BUICK — 9-7X, ACADIA, ALERO, ASTRA, ASTRO, ATS, AURA, AURORA, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, AZTEK, BLAZER, BOLT EV, BONNEVILLE, BRAVADA, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CASCADA, CAVALIER, CENTURY, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CONVENTIONAL, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, DEVILLE, DTS, ELDORADO, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, ENVOY XL, ENVOY XUV, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, FIREBIRD, G SERIES, G VAN BUS, G3, G5, G6, G8, GM, GRAND AM, GRAND PRIX, GTO, H2, H3, HHR, IMPALA, INTRIGUE, ION, JIMMY, JIMMY CLASSIC, L SERIES, L200, L300, LACROSSE, LESABRE, LUCERNE, LW200, M SERIES, MALIBU, MONTANA, MONTANA EXT, MONTE CARLO, OUTLOOK, PARK AVENUE, PRIZM, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, S10, SAFARI, SAVANA, SEVILLE, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILHOUETTE, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 4500HD, SKY, SL, 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 (2000–2020) — 1029 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This informational bulletin provides information on key code security and information on GM key code look up applications.

BUICK — ACADIA, ATS, BLAZER, CAMARO, CANYON, COLORADO, CORVETTE, CT4, CT5, CT6, CTS, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, EXPRESS, MALIBU, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SUBURBAN, SUBURBAN 1500, TAHOE, TERRAIN, TRAILBLAZER, XT4, XT5, XT6, YUKON, YUKON XL (2015–2022) — 390 vehicle combinations

100000 POWER TRAIN

This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed.

BUICK — CRUZE, ENCORE, EQUINOX, MALIBU, TERRAIN (2016–2018) — 11 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates the following to the dealer. If an engine oil leak has been isolated to the front crankshaft seal, check for misfires low engine compression and/or cylinder leakage readings. These issues could caus

BUICK — ENCLAVE, TRAVERSE (2020) — 2 vehicle combinations

270000 LANE DEPARTURE

This Preliminary information communicates information on adaptive cruise temporarily unavailable message and/or lane keep assist system unavailable message .

BUICK — ACADIA, BLAZER, ENCLAVE, TRAVERSE, XT5, XT6 (2019–2020) — 9 vehicle combinations

100000 POWER TRAIN

This Preliminary information communicates to perform a transmission fluid drain and fill to correct a TCC shudder concern.

BUICK — 3500, 4500HD, 5500HD, 9-7X, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVEO, BLAZER, BOLT EV, C SERIES, 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, ESCALADE EXT, EXPRESS, G VAN BUS, G3, G5, G6, G8, GRAND PRIX, GTO, H2, H3, HHR, IMPALA, ION, LACROSSE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 3500, LOW CAB FORWARD 4500, LOW CAB FORWARD 5500, LOW CAB FORWARD 6500, LUCERNE, MALIBU, MONTANA, MONTE CARLO, OUTLOOK, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, SAVANA, 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, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VERANO, VIBE, VOLT, VUE, W-SERIES, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2007–2020) — 705 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This informational bulletin provides information on comebacks prevention information and using customer concern verification sheets (CCVS).

BUICK — 3500, 4500HD, 5500HD, ACADIA, ATS, AVALANCHE, AVEO, BLAZER, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CHEYENNE, CITY EXPRESS, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, HHR, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 4500, LOW CAB FORWARD 5500, LOW CAB FORWARD 6500, LOW CAB FORWARD 7500, LUCERNE, MALIBU, N300, N300 MAX, ORLANDO, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2011–2021) — 4008 vehicle combinations

162000 STRUCTURE:BODY

This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only).

BUICK — ENCLAVE, LACROSSE, TRAVERSE, XT5 (2018) — 4 vehicle combinations

110000 ELECTRICAL SYSTEM

N192266190 02 - Service Update - (Revised Service Procedure for XT5). Certain vehicles may have an engine control software issue that can occur during an automatic stop/start event. Immediately following an auto-start and while the vehicle

BUICK — LACROSSE, MALIBU, REGAL, XT4 (2016–2019) — 10 vehicle combinations

010000 STEERING

This engineering information bulletin is requesting to gather information from the field to determine a root cause for a condition of a stick-Slip Type Condition Felt in Steering Wheel at Highway Speeds. The information gathered will be use

BUICK — ENCLAVE, TRAVERSE (2018–2019) — 4 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates a poor weld or low weld adhesion for the bracket on the Bank 2 front exhaust pipe causing multiple possible concerns and the recommended repairs.

BUICK — CRUZE, ENCORE, EQUINOX, MALIBU, TERRAIN (2016–2018) — 11 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates the following to the dealer. If an engine oil leak has been isolated to the front crankshaft seal, check for misfires low engine compression and/or cylinder leakage readings. These issues could caus

BUICK — CRUZE, ENCORE, EQUINOX, MALIBU, TERRAIN, TRAX (2018–2020) — 11 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates the possibility of a misfire occuring due to a broken center insulator on the spark plug.

BUICK — ACADIA, ATS, BLAZER, CAMARO, CANYON, CAPRICE, CITY EXPRESS, COLORADO, CORVETTE, CRUZE, CT5, CT6, CTS, ELR, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, EXPRESS, IMPALA, LACROSSE, MALIBU, REGAL, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 4500HD, SONIC, SPARK, SPARK EV, SRX, SS, SUBURBAN, TAHOE, TERRAIN, TRAVERSE, TRAX, VERANO, VOLT, XT4, XT5, XT6, XTS, YUKON (2010–2020) — 280 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical s

BUICK — ENCORE, ENCORE GX, TRAILBLAZER (2020–2021) — 10 vehicle combinations

030000 BRAKES (PWS)

This informational bulletin provides information for dealers/technicians on Brake Pedal - Excessive Click Noise with Slight Press of the Brake Pedal.

BUICK — ACADIA, ATS, BLAZER, CAMARO, CANYON, COLORADO, CT6, CTS, ENVISION, EQUINOX, IMPALA, LACROSSE, MALIBU, REGAL, TERRAIN, TRAVERSE (2013–2019) — 72 vehicle combinations

350000 EQUIPMENT

This Preliminary information communicates to the technician information on what may be setting DTC P06DE. This is in addition to what is already in the service manual.

BUICK — ENCLAVE, LACROSSE, TRAVERSE, XT5 (2018) — 4 vehicle combinations

110000 ELECTRICAL SYSTEM

N192266190 01 - Service Update. Certain 2018 model year Buick LaCrosse, Enclave, Cadillac XT5 and Chevrolet Traverse vehicles may have an engine control software issue that can occur during an automatic stop/start event. Immediately follow

BUICK — 3500, 4500HD, 5500HD, 9-7X, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, C SERIES, CAMARO, CANYON, CAPRICE, COLORADO, CORVETTE, CTS, CTS-V, ENVOY, ENVOY XUV, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, G SERIES, G8, GM, GRAND PRIX, GTO, H2, H3, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 4500, LOW CAB FORWARD 5500, LOW CAB FORWARD 6500, MONTE CARLO, RAINIER, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SS, SSR, SUBURBAN, TAHOE, TRAILBLAZER, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2002–2018) — 1079 vehicle combinations

060000 ENGINE (PWS)

This diagnostic tip provides additional information on how to diagnose a possible valve, lifter or camshaft issue.

BUICK — ENCLAVE, TRAVERSE (2018–2020) — 6 vehicle combinations

350000 EQUIPMENT

This Preliminary information communicates information to help diagnose A/C leak concerns.

BUICK — ACADIA, ATS, CT6, CTS, ENCLAVE, ENVISION, EQUINOX, LACROSSE, TERRAIN, TRAVERSE, XT4, XT5, XTS (2015–2019) — 82 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary Information communicates to the technician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep

BUICK — ENCLAVE, LACROSSE, TRAVERSE, XT5 (2018) — 8 vehicle combinations

060000 ENGINE AND ENGINE COOLING

N192266190 - Service Update. Certain vehicles may have an engine control software issue that can occur during a stop/start event that is causing drivability concerns such as the engine running roughly. Potential reduced engine power or engi

BUICK — ACADIA, ATS, BLAZER, CAMARO, CANYON, COLORADO, CT6, CTS, LACROSSE, XT5 (2016–2019) — 31 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This engineering informational bulletin is requesting to gather information from the field to determine a root cause for a condition of oil leaking from the valve rocker arm oil control valve. The information gathered will be used to develo