Technical Service Bulletins (TSB)

BRIGHTDROP — ZEVO 600 (2023) — 4 vehicle combinations

160000 STRUCTURE

This technical bulletin provides a procedure to correct the condition of Chirp Noise from Center Stack/Radio Control.

BRIGHTDROP — HUMMER EV, LYRIQ, ZEVO 600 (2022–2024) — 6 vehicle combinations

110000 ELECTRICAL SYSTEM

Service update - certain vehicles may have a software defect that causes a diagnostic trouble code (DTC) to set. Dealers are to reprogram the battery energy control module.

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BRIGHTDROP — BLAZER, CANYON, COLORADO, CORVETTE, CT4, CT5, ENVISION, ESCALADE, ESCALADE ESV, EV600, HUMMER EV, LYRIQ, SIERRA 1500, SIERRA 2500, SILVERADO 1500, SILVERADO 2500, SUBURBAN, SUBURBAN 1500, TAHOE, XT4, YUKON, YUKON XL (2020–2024) — 52 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.

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BRIGHTDROP — 3500, 3500HD, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 600 ELCV, 6500HD, ACADIA, ATS, ATS-V, BLAZER, BLAZER EV, BOLT EUV, BOLT EV, C3500, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CASCADA, CITY EXPRESS, COBALT, COLORADO, CORVETTE, CORVETTE E-RAY, CRUZE, CT4, CT5, CT6, CTS, CTS-V, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVISTA, EQUINOX, EQUINOX EV, ESCALADE, ESCALADE ESV, EV600, EXPRESS, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY VAN, G3500, G4500, HUMMER EV, IMPALA, LACROSSE, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LYRIQ, MALIBU, MALIBU HYBRID, N300, N300 MAX, REGAL, REGAL TOURX, S10, SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SILVERADO EV, SILVERADO LT, SONIC, SPARK, SPARK EV, SRX, SS, SUBURBAN, SUBURBAN 1500, TAHOE, TAHOE POLICE PURSUIT, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, VERANO, VOLT, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL, YUKON XL 1500, ZEVO 400, ZEVO 600 (2015–2024) — 600 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.

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BRIGHTDROP — HUMMER EV, LYRIQ, LYRIQ EV, ZEVO 600 (2022–2024) — 8 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.

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BRIGHTDROP — ZEVO 400, ZEVO 600 (2023–2024) — 3 vehicle combinations

160000 STRUCTURE

This technical bulletin provides a procedure to correct the condition of a Roof Rail Gap.

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BRIGHTDROP — BLAZER EV, BOLT EUV, BOLT EV, EV600, HUMMER EV, LYRIQ, SILVERADO EV, ZEVO 600 (2017–2024) — 40 vehicle combinations

110000 ELECTRICAL SYSTEM

This engineering information (EI) will assist GM to recover a small number of electric vehicle battery packs from customer-owned vehicles in the field for further engineering study and analysis.

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BRIGHTDROP — BLAZER EV, BOLT EUV, BOLT EV, HUMMER EV, LYRIQ, SILVERADO EV, ZEVO 400, ZEVO 600 (2017–2024) — 38 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides Hybrid/EV Charging Issue Information and Data Collection Worksheet.

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BRIGHTDROP — BLAZER EV, CANYON, COLORADO, LYRIQ, SILVERADO EV, ZEVO 400, ZEVO 600 (2023–2024) — 9 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates a normal programming Characteristic for the K73 Telematics Control Module.

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BRIGHTDROP — HUMMER EV, ZEVO 600 (2022–2023) — 3 vehicle combinations

110000 ELECTRICAL SYSTEM

This preliminary information communicates to all field technicians the imperative protocol that if any of the listed codes are detected, currently or historically, the specified procedure must be strictly followed prior to the replacement o

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BRIGHTDROP — HUMMER EV, ZEVO 600 (2022–2023) — 3 vehicle combinations

110000 ELECTRICAL SYSTEM

This preliminary information communicates to all field technicians the imperative protocol that if any of the listed codes are detected, currently or historically, the specified procedure must be strictly followed prior to the replacement o

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BRIGHTDROP — 3500, 3500HD, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 600 ELCV, 6500HD, 6H, 7H, ACADIA, ALERO EXPORT, ALLURE, ASTRO, ATS, ATS-V, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, B SERIES, B6 MEDIUM DUTY, B7, B7 MEDIUM DUTY, BEAUVILLE, BERETTA, BLAZER, BLAZER EV, BOLT EUV, BOLT EV, C SERIES, C10, C3500, C4500, C5500, C6500, C6H042, C7500, C8500, CAMARO, CANYON, CAPRICE, CAPRICE POLICE PURSUIT, CAPTIVA, CAPTIVA SPORT, CASCADA, CATERA, CAVALIER, CENTURY, CHEVY VAN, CITY EXPRESS, CLASSIC, COBALT, COBALT SS, COLORADO, CONVENTIONAL, CORVETTE, CORVETTE Z06, CORVETTE ZR1, CRUZE, CT4, CT5, CT6, CTS, CTS-V, 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, EV600, EXPLORER, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY, EXPRESS CUTAWAY VAN, F SERIES, F6, F7, G SERIES, G VAN, G VAN BUS, G1500, G25, G2500, G30, G35, G3500, G4500, H SERIES, HHR, HUMMER EV, IMPALA, IMPALA (GMX 211), INCOMPLETE/CUTAWAY C3, JIMMY, JIMMY CLASSIC, L SERIES, L VAN, LACROSSE, LESABRE, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, LUCERNE, LUMINA, LUMINA APV, LYRIQ, M SERIES, M VAN, M/L, M/L SERIES, M/L VAN, MALIBU, MALIBU CLASSIC, MALIBU ECO, MALIBU HYBRID, MALIBU MAXX, METRO, MONTE CARLO, MOTOR HOME, N300, N300 MAX, OPTRA, P SERIES, PARK AVENUE, PRIZM, R SERIES, RAINIER, REGAL, REGAL TOURX, RENDEZVOUS, RIVIERA, ROADTREK, S/T BLAZER, S/T JIMMY, S10, S15, SAFARI, SAFARI (GMC), SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SEVILLE, SIERRA 1500, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA 3500, SIERRA 3500 HD, SIERRA DENALI, 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, SKYLARK, SLS, SONIC, SONOMA, SONOMA CREW, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, T SERIES, T4500, T6500, T7500, T8500, TAHOE, TAHOE HYBRID, TAHOE POLICE PURSUIT, TERRAIN, TERRAZA, TOPKICK, TOPKICK 6500, TOPKICK 8500, TRACKER, TRAILBLAZER, TRAILBLAZER 360, TRAILBLAZER EXT, TRAILBLAZER EXT 370, TRANS SPORT, TRAVERSE, TRAX, UPLANDER, V SERIES, VAN, VANDURA, VENTURE, VERANO, VOLT, W SERIES, W SERIES C3 3500, W-SERIES, W3500, W4, W4500, 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, ZEVO 400, ZEVO 600 (2000–2024) — 4314 vehicle combinations

350000 EQUIPMENT

This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

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BRIGHTDROP — HUMMER EV, LYRIQ, ZEVO 600 (2022–2024) — 12 vehicle combinations

280100 BACK OVER PREVENTION:SOFTWARE

This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.

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BRIGHTDROP — ZEVO 600 (2023)

220000 SEATS

Certain vehicles may have been built without the passenger side jump seat. Dealers are to install the passenger side jump seat.

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BRIGHTDROP — 600 ELCV, CANYON, COLORADO, ENVISTA, MALIBU, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500 (2022–2024) — 135 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to correct a customer concern of the rearview driver information camera intermittent in low light conditions - replace camera.

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BRIGHTDROP — BLAZER EV, CANYON, COLORADO, CORVETTE, CT4, CT5, ENVISION, ESCALADE, ESCALADE ESV, EV600, HUMMER EV, LYRIQ, SIERRA 1500, SIERRA 2500, SILVERADO 1500, SILVERADO 2500, SILVERADO EV, SUBURBAN, TAHOE, XT4, YUKON, YUKON XL (2020–2024) — 53 vehicle combinations

100000 POWER TRAIN

This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed over the air update.

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BRIGHTDROP — ZEVO 600 (2023) — 2 vehicle combinations

050000 PARKING BRAKE

This informational bulletin provides information on Information on DTC U1122 - Lost Communication with Electric Park Brake Switch Stored in History.

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BRIGHTDROP — EV600, HUMMER EV, SILVERADO EV, ZEVO 600 (2022–2024) — 56 vehicle combinations

110000 ELECTRICAL SYSTEM

This informational bulletin provides information on High Voltage Drive Motor Battery - TAC Approval and Exchange Program for GMC HUMMER EV, Silverado EV, & BrightDrop.

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BRIGHTDROP — HUMMER EV, SILVERADO EV, ZEVO 600 (2023–2024) — 4 vehicle combinations

353000 EQUIPMENT:ELECTRICAL

This Preliminary information communicates that they need to drive the vechile over 5 miles on the ODO to be able to high Voltage Charge.

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BRIGHTDROP — BLAZER EV, CANYON, COLORADO, CORVETTE, CT4, CT5, ENVISION, ESCALADE, ESCALADE ESV, EV600, HUMMER EV, LYRIQ, SIERRA 1500, SIERRA 2500, SILVERADO 1500, SILVERADO 2500, SUBURBAN, TAHOE, XT4, YUKON, YUKON XL (2020–2024) — 52 vehicle combinations

100000 POWER TRAIN

This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.

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BRIGHTDROP — HUMMER EV, LYRIQ, ZEVO 600 (2022–2024) — 12 vehicle combinations

111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY

This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.

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BRIGHTDROP — ZEVO 600 (2023)

020000 SUSPENSION

Service Update. On certain vehicles, the front suspension fasteners may not be torqued to their specification targets. Dealers are to either replace the bolt fastener, or re-torque fasteners as noted in procedure.

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BRIGHTDROP — HUMMER EV, LYRIQ, ZEVO 600 (2022–2024) — 6 vehicle combinations

118000 ELECTRICAL SYSTEM:SOFTWARE

This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.

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BRIGHTDROP — 3500, 3500HD, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 600 ELCV, 6500HD, ACADIA, BLAZER, BLAZER EV, BOLT EUV, BOLT EV, CAMARO, CANYON, COLORADO, CORVETTE, CT4, CT5, CT6, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVISTA, EQUINOX, EQUINOX EV, ESCALADE, ESCALADE ESV, EV600, EXPRESS, EXPRESS 2500, EXPRESS 3500, EXPRESS CUTAWAY VAN, HUMMER EV, IMPALA, LACROSSE, LYRIQ, MALIBU, REGAL, REGAL TOURX, SAVANA, SAVANA 2500, SAVANA 3500, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SILVERADO EV, SONIC, SPARK, SUBURBAN, SUBURBAN 1500, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, XT4, XT5, XT6, XTS, YUKON, YUKON XL, YUKON XL 1500, ZEVO 400, ZEVO 600 (2020–2024) — 1064 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present o

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BRIGHTDROP — HUMMER EV, LYRIQ, ZEVO 600 (2022–2024) — 6 vehicle combinations

346000 COMMUNICATION:MANUFACTURER TELEMATICS

This Preliminary information communicates to the field if codes P0B13, and or U2AF1 are set history to clear codes and recommend to avoiding any possible suspect charging stations until software updates are available and implemented.

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