Technical Service Bulletins (TSB)

BUICK — ENCORE (2020) — 2 vehicle combinations

030000 BRAKES (PWS)

Emission - General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles. Certain vehicles may have a blockage of the Positive Crankcase Ventilation (PCV) passage in the camshaft cover. If a vehicle has this

BUICK — CT4, CT5, ENVISION, ESCALADE, ESCALADE ESV, SUBURBAN, TAHOE, YUKON, YUKON XL (2021) — 29 vehicle combinations

263010 FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL:SOFTWARE

This technical bulletin provides repair information to correct a customer concern of Long Range Radar setting DTC U3000 49.

BUICK — ACADIA, ATS, BLAZER, CAMARO, CANYON, COLORADO, CT5, CT6, CTS, LACROSSE, REGAL, XT5, XT6 (2016–2021) — 98 vehicle combinations

350000 EQUIPMENT

This Preliminary information communicates additional diagnostic information for DTC's P0016 and P0018.

BUICK — ACADIA, BLAZER, ENCLAVE, TRAVERSE, XT5, XT6 (2021) — 36 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates that a customer may bring a vehicle in with an SES light on. If the technician finds a code P2B87 (auxiliary coolant pump underspeed) set in the ECM they are directed to not replace the G17 heater c

BUICK — ACADIA, BLAZER, ENCLAVE, TRAVERSE, XT5, XT6 (2021) — 12 vehicle combinations

280000 BACK OVER PREVENTION

This Preliminary information communicates that a dealer may encounter a vehicle that is making a grinding or growling noise on the first few brake applications after the vehicle has been sitting overnight. The dealer is instructed to perfor

BUICK — ACADIA, BLAZER, CAMARO, CORVETTE, CT4, CT5, ENCORE GX, ENVISION, MALIBU, SIERRA 1500, SILVERADO 1500, SUBURBAN, TAHOE, TRAILBLAZER, XT4, XT5, XT6, YUKON, YUKON XL (2021) — 100 vehicle combinations

118000 ELECTRICAL SYSTEM:SOFTWARE

This service bulletin provides V152 radio software update information to correct customer concerns of various software issues.

BUICK — ACADIA, BLAZER, CAMARO, CORVETTE, ENCORE GX, ENVISION, MALIBU, SIERRA 1500, SILVERADO 1500, TRAILBLAZER, XT4, XT5, XT6 (2021) — 26 vehicle combinations

280100 BACK OVER PREVENTION:SOFTWARE

This Preliminary information communicates A list of software concerns and advises that engineering is working on a resolution. This PI will be changed to a bulletin once the Software is released.

BUICK — ACADIA, BLAZER, CAMARO, CORVETTE, ENCORE GX, ENVISION, MALIBU, SIERRA 1500, SILVERADO 1500, TRAILBLAZER, XT4, XT5, XT6 (2021) — 26 vehicle combinations

280100 BACK OVER PREVENTION:SOFTWARE

This Preliminary information communicates A list of software concerns and advises that engineering is working on a resolution. This PI will be changed to a bulletin once the Software is released.

BUICK — ENCORE GX (2020) — 5 vehicle combinations

260000 FORWARD COLLISION AVOIDANCE

This engineering information (EI) closure ends the need for information from the field in regards to the Lane Keep Assist/Forward Collision Alert (if equipped)/Adaptive Cruise Control being inoperative.

BUICK — ACADIA, BLAZER, BOLT EV, CAMARO, CANYON, COLORADO, CORVETTE, CT4, CT5, CT6, ENCLAVE, ENCORE GX, EQUINOX, ESCALADE, ESCALADE ESV, LACROSSE, MALIBU, REGAL, SIERRA 1500, SILVERADO 1500, SUBURBAN, TAHOE, TERRAIN, TRAVERSE, VOLT, XT4, XT6, YUKON, YUKON XL (2019–2021) — 168 vehicle combinations

350000 EQUIPMENT

This service bulletin provides information to aid a dealer/customer concern of Radio Unwanted Phantom Touch or Non-Responsive to Touch After Cleaning/Disinfecting Radio Display.

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, 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, G3, G5, G6, G8, GRAND AM, GRAND PRIX, GTO, H2, H3, HHR, IMPALA, ION, JIMMY, JIMMY CLASSIC, L200, L300, LACROSSE, LESABRE, LUCERNE, MALIBU, MONTANA, MONTE CARLO, OUTLOOK, PARK AVENUE, PURSUIT, RAINIER, REGAL, RELAY, RENDEZVOUS, SAFARI, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, 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 (2000–2021) — 3236 vehicle combinations

060000 ENGINE AND ENGINE COOLING

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

BUICK — ATS, CTS, REGAL, TERRAIN, XTS (2018–2020) — 20 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary information communicates steps to perform to determine if the concern relates to a concern that is under engineering investigation.

BUICK — ACADIA, BLAZER, ENCLAVE, TRAVERSE, XT5, XT6 (2017–2021) — 69 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides a service procedure to correct a customer concern of Power Liftgate Stops When Opening and/or Will Not Close from Open Position DTC B153F Sets.

BUICK — ENCLAVE, TRAVERSE (2020–2021) — 20 vehicle combinations

130000 VISIBILITY

This engineering informational bulletin is requesting pictures from technicians in regards to water leak issue at Sunroof Window - Rear that drives a warrantable item type of repair.

BUICK — ATS, ATS-V, CANYON, COLORADO, CTS, ELR, ENCORE, ENVISION, ESCALADE, SRX, SUBURBAN, TAHOE, XT5, XTS, YUKON (2013–2020) — 164 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 — ENCORE GX, TRAILBLAZER (2020–2021) — 6 vehicle combinations

030000 BRAKES (PWS)

This engineering information (EI) Lite is requesting technicians follow the steps in this EI and submit a Field Product Report with the requested information and Submit in regards to a front brake noise Condition.

BUICK — ACADIA, ATS, AVALANCHE, BLAZER, BOLT EV, CAMARO, CANYON, CAPRICE, CASCADA, COLORADO, CORVETTE, CT4, CT5, CT6, CTS, CTS-V, DTS, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, GRAND PRIX, H2, H3, IMPALA, LACROSSE, MALIBU, REGAL, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 4500HD, SPARK, SRX, SS, STS, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2005–2021) — 2022 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.

BUICK — ACADIA, BLAZER, CANYON, COLORADO, CT4, CT5, ENCORE GX, ESCALADE, MALIBU, SIERRA 1500, SILVERADO 1500, SUBURBAN, TAHOE, XT5, XT6, YUKON (2021) — 32 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary Information communication requests information from the technician about vehicles that may have Bluetooth or phone projection issues. Dealer should request as much information from the customer on the concern as possible a

BUICK — AVALANCHE 1500, AVALANCHE 2500, BRAVADA, ENVOY, ENVOY XL, ESCALADE, ESCALADE ESV, ESCALADE EXT 1500, H2, RAINIER, SIERRA 1500, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN 1500, SUBURBAN 2500, TAHOE, TRAILBLAZER, TRAILBLAZER EXT, YUKON, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2002–2007) — 103 vehicle combinations

110000 ELECTRICAL SYSTEM

This SKU is a Climate Control Module. The customer communication requested return of unsold inventory to inspect for a software issue. If the software issue exists it can cause a fan in the climate control system to stay on even when the

BUICK — ACADIA, CT6, CTS, ENCLAVE, ENVISION, ESCALADE, ESCALADE ESV, LACROSSE, MALIBU, TRAVERSE, VERANO, XT5 (2017–2019) — 76 vehicle combinations

140000 AIR BAGS

This Preliminary information communicates a condition where there is only newer hardware available when replacing the Active Safety Control Module. The newer hardware is not compatible with whatis currently loaded into the SPS programming s

BUICK — 3500, 4500HD, 5500HD, ACADIA, ATS, AVEO, BLAZER, BOLT EV, CAMARO, CANYON, CAPRICE, CAPTIVA, CASCADA, CITY EXPRESS, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, EXPRESS, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 4500, LOW CAB FORWARD 5500, LOW CAB FORWARD 6500, LOW CAB FORWARD 7500, MALIBU, N300, N300 MAX, REGAL, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SONIC, SPARK, SPARK EV, SRX, SS, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, XT4, XT5, XT6, XTS, YUKON, YUKON XL (2015–2021) — 606 vehicle combinations

350000 EQUIPMENT

This bulletin provides information on Warranty Administration ? Required Operating Procedures - 8 Points (U.S. Only).

BUICK — 3500, 4500HD, 5500HD, ACADIA, ATS, AVALANCHE, AVEO, BLAZER, BOLT EV, CAMARO, CANYON, CAPRICE, CASCADA, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, G VAN BUS, HHR, IMPALA, LACROSSE, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, MALIBU, REGAL, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SONIC, SPARK, SPARK EV, SRX, SS, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TOPKICK, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, W-SERIES, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2010–2021) — 475 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This warranty administration bulletin provide policy information for variable diagnostic time allowances on select labor operations (U.S. Only).

BUICK — 3500, 4500HD, 5500HD, 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, CTS-V, DTS, ELR, ENCLAVE, ENCORE, ENCORE GX, 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 6500, LUCERNE, MALIBU, N300, N300 MAX, ORLANDO, OUTLOOK, REGAL, S10, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, 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 (2010–2021) — 1076 vehicle combinations

060000 ENGINE (PWS)

This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.

BUICK — 3500, 4500 SERIES, 4500HD, 5500HD, 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, CTS-V, 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 1500, SIERRA 2500, SIERRA DENALI, 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) — 754 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking

BUICK — ENCORE GX, TRAILBLAZER (2020–2021) — 3 vehicle combinations

090000 FUEL SYSTEM, OTHER

This Preliminary information communicates to the technician information related to a potential fuel leak from the engine fuel rail.