Technical Service Bulletins (TSB)

BUICK — 9-7X, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVEO, BLAZER, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, 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 FORWARD 6500, LUCERNE, MALIBU, N300, N300 MAX, ORLANDO, OUTLOOK, PURSUIT, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, TAHOE, TERRAIN, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VERANO, VIBE, VOLT, VUE, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2009–2020) — 516 vehicle combinations

350000 EQUIPMENT

This bulleting provides Wiring, Terminal and Connector Repair Information including how to determine the Service Part Number in eSI and how to locate the part(s) in the EPC.

BUICK — ACADIA, ENCLAVE, EQUINOX, TERRAIN, TRAVERSE, XT5 (2019) — 6 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This engineering informational bulletin is requesting information from the field on warranty parts for complete canister assemblies that apply to the DTC codes specified and has leak conditions. Engineering is determining a root cause and d

BUICK — 3500, 9-5, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVEO, BLAZER, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CHEYENNE, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT4, CT5, 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, LOW CAB FORWARD 4500, LOW CAB FORWARD 5500, LOW CAB FORWARD 6500, LUCERNE, MALIBU, N300, N300 MAX, ORLANDO, OUTLOOK, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TOPKICK, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VIBE, VOLT, VUE, W-SERIES, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2010–2020) — 494 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This informational bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.

BUICK — LACROSSE, MALIBU, REGAL (2016–2018) — 18 vehicle combinations

060000 ENGINE (PWS)

Certain 2016-2018 model year Chevrolet Malibu, 2017-2018 model year Buick LaCrosse, and 2018 model year Buick Regal vehicles may have a condition which affects the electrical connection to one of the vehicle?s accelerator pedal position sen

BUICK — ACADIA, BLAZER, ENCLAVE, TRAVERSE, XT5, XT6 (2017–2020) — 97 vehicle combinations

030000 BRAKES (PWS)

This technical bulletin provides repair information to correct a customer concern of a rear brake squeal noise.

BUICK — 9-7X, ENVOY, ENVOY 360, ENVOY DENALI, ENVOY DENALI XL, ENVOY XL, ENVOY XL 370, RAINIER, TRAILBLAZER (2006–2009) — 22 vehicle combinations

161000 STRUCTURE:FRAME AND MEMBERS

This Preliminary information communicates a Wind Whistle Noise From Front Of the Vehicle at Speeds Above 55 mph

BUICK — ENVISION (2020) — 2 vehicle combinations

031100 SERVICE BRAKES, ELECTRIC

N192266900 - Service Update. A Service Stabilitrak message may be displayed on the driver information center, setting DTC U0125/U0151. The Electronic Stability Control (ESC) may be disabled during the ignition cycle when the message is di

BUICK — 3500, 9-5, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVEO, BLAZER, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CHEYENNE, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT4, CT5, 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, LOW CAB FORWARD 4500, LOW CAB FORWARD 5500, LOW CAB FORWARD 6500, LUCERNE, MALIBU, N300, N300 MAX, ORLANDO, OUTLOOK, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TOPKICK, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VIBE, VOLT, VUE, W-SERIES, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2010–2020) — 497 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.

BUICK — ACADIA, BOLT EV, CANYON, COLORADO, CORVETTE, CRUZE, CT6, ENCLAVE, ENCORE, ENVISION, EQUINOX, ESCALADE, MALIBU, REGAL, SIERRA 1500, SILVERADO 1500, SS, TAHOE, TRAVERSE, VOLT, XT5, XTS, YUKON XL (2015–2019) — 102 vehicle combinations

110000 ELECTRICAL SYSTEM

N192218430 - Customer Satisfaction Program. During service, certain vehicles equipped with OnStar (RPO UE1), may have received an incorrect and partially programmed/configured replacement OnStar module. This condition will disable certain

BUICK — 9-3, 9-5, 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, CT6, CTS, DTS, ELR, ENCLAVE, ENCORE, ENVISION, ENVOY, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G3, G5, G6, G8, H2, H3, HHR, IMPALA, LACROSSE, LUCERNE, MALIBU, MONTANA, N300 MAX, OUTLOOK, PURSUIT, REGAL, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TOPKICK, TORRENT, TRAILBLAZER, TRAVERSE, TRAX, UPLANDER, VERANO, VIBE, VOLT, VUE, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2009–2020) — 497 vehicle combinations

103000 POWER TRAIN:AUTOMATIC TRANSMISSION

This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is

BUICK — IMPALA, LACROSSE, MALIBU, REGAL, XTS (2013–2019) — 23 vehicle combinations

010000 STEERING

This technical bulletin provides repair information to correct a customer concern of "Steering Assist Is Reduced" Message and One of The Following DTCs Are Set: C056D, U0415.

BUICK — ATS, ATS-V, CANYON, COLORADO, CTS, ELR, ENCORE, ESCALADE, SRX, SUBURBAN, TAHOE, XT5, XTS, YUKON (2013–2019) — 67 vehicle combinations

130000 VISIBILITY

This Preliminary Information communication provides the technician with steps to resolve the issue of an oily substance that may be found on the inside windshield surface, and appears to be leaking from the rear view mirror area. Technicia

BUICK — 9-7X, ALLURE, AVALANCHE, CAMARO, CANYON, COLORADO, CORVETTE, CTS-V, ENVOY, ESCALADE, EXPRESS, G8, GRAND PRIX, H2, H3, IMPALA, LACROSSE, MONTE CARLO, SAVANA, SIERRA 1500, SILVERADO 1500, SUBURBAN, TAHOE, TRAILBLAZER, YUKON (2006–2018) — 318 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary Information communication provides information to the technician about vehicles that have low oil pressure, no oil pressure, and/or engine noise. Technician will need to replace the oil pump, flush the oil cooler lines.

BUICK — 3500, 4500HD, 4500XD, 5500HD, 6500XD, 9-3, 9-5, 9-7X, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVEO, BLAZER, BOLT EV, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CAVALIER, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVOY, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G VAN BUS, G3, G5, G6, G8, H2, H3, HHR, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB FORWARD 4500, LOW CAB FORWARD 5500, LOW CAB FORWARD 6500, LOW CAB FORWARD 7500, LUCERNE, MALIBU, MONTANA, N300, N300 MAX, OUTLOOK, PURSUIT, REGAL, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SKY, SOLSTICE, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, 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 (2009–2021) — 1120 vehicle combinations

010000 STEERING

This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.

BUICK — ATS, CTS, REGAL, TERRAIN, XTS (2018–2019) — 18 vehicle combinations

118000 ELECTRICAL SYSTEM:SOFTWARE

This Preliminary information communicates information to not replace any parts for Favorites unavailable message intermittently. This PI will be deleted and a bulletin created when new software is available.

BUICK — 3500, ACADIA, ATS, AVEO, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CASCADA, CAVALIER, 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, LOW CAB FORWARD 4500, LOW CAB FORWARD 5500, MALIBU, N300, N300 MAX, ORLANDO, REGAL, S10, SAVANA, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SONIC, SPARK, SPARK EV, SRX, SS, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, XT5, XTS, YUKON, YUKON XL (2014–2018) — 232 vehicle combinations

350000 EQUIPMENT

This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.

BUICK — 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, SS, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, XT5, XTS, YUKON, YUKON XL (2017–2018) — 96 vehicle combinations

350000 EQUIPMENT

This Preliminary information communicates that when a customer or technician attempts to add a new transmitter to a vehicle following the adding transmitters without Service Programming System procedure the procedure will not complete and a

BUICK — 3500, 9-3, 9-5, 9-7X, ACADIA, ASTRA, ATS, AURA, AVALANCHE, AVEO, BLAZER, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, 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, GRAND PRIX, GTO, H2, H3, HHR, IMPALA, ION, LACROSSE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, MALIBU, MONTANA, MONTE CARLO, N300, N300 MAX, 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, 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 (2007–2020) — 628 vehicle combinations

350000 EQUIPMENT

This informational bulletin provides process information for the (GWM) and (WPC) parts return program.

BUICK — ENCORE, TRAX (2013–2019) — 14 vehicle combinations

357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER

This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0171 and or P1101 set. Technician will need to ins

BUICK — ENCORE, TRAX (2018–2019) — 4 vehicle combinations

140000 AIR BAGS

This technical bulletin provides a procedure to remove the driver front seat outboard seat back airbag and re-seat the CPA clip for the airbag.

BUICK — ENCLAVE, TRAVERSE (2018–2019) — 8 vehicle combinations

020000 SUSPENSION

This engineering informational bulletin is requesting information on noise heard from the rear shock absorber.

BUICK — ENVISION (2019–2020) — 2 vehicle combinations

100000 POWER TRAIN

This technical bulletin provides a procedure to replace the prop shaft to correct a whining noise condition.

BUICK — ACADIA, BLAZER, ENCLAVE, SIERRA 1500, SILVERADO 1500, TRAVERSE, XT5 (2017–2019) — 13 vehicle combinations

350000 EQUIPMENT

This Preliminary information communicates information to diagnose DTC C056D or C056E.

BUICK — ACADIA, ATS, CRUZE, CTS, ENVISION, IMPALA, LACROSSE, MALIBU, REGAL, VOLT, XT5, XTS (2011–2020) — 69 vehicle combinations

160000 STRUCTURE

This Preliminary Information communication provides the technician with information on the proper washing of the bright aluminum moldings to avoid the moldings from getting damaged. It is recommended that a non-alkaline solution be used for

BUICK — ATS, CAMARO, CTS, ENVISION, REGAL, TRAVERSE (2019) — 6 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates diagnostics and repairs in addition to what is already in Service Information. The concern this document is designed for is specific to some 2019 vehicles with 2.0 LTG engine exhibiting a misfire a