TSB: BUICK 3500, 4500, 4500HD, 5500HD, ACADIA, ALERO EXPORT, ASTRO, ATS, AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, AVEO, B7, B7 MEDIUM DUTY, BLAZER, BOLT EV, C SERIES, CAMARO, CANYON, CAPRICE, CAPTIVA, CAPTIVA SPORT, CASCADA, CATERA, CAVALIER, CENTURY, CHEVY VAN, CHEYENNE, CITY EXPRESS, CLASSIC, COBALT, COLORADO, CONVENTIONAL, CORVETTE, CRUZE, CT4, CT5, CT6, CTS, CTS-V, DEVILLE, DTS, ELDORADO, ELR, ENCLAVE, ENCORE, ENCORE GX, ENVISION, ENVOY, ENVOY XL, ENVOY XUV, EPICA, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, F SERIES, G SERIES, G VAN BUS, GM, H SERIES, HHR, IMPALA, JIMMY, JIMMY CLASSIC, L SERIES, LACROSSE, LESABRE, LOW CAB FORWARD 6500, LUCERNE, LUMINA, M SERIES, M VAN, M/L VAN, MALIBU, METRO, MONTE CARLO, N300, N300 MAX, OPTRA, ORLANDO, P SERIES, PARK AVENUE, PRIZM, RAINIER, REGAL, RENDEZVOUS, RIVIERA, S10, SAFARI, SAFARI (GMC), SAVANA, SEVILLE, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 2500 HD, SILVERADO 3500, SILVERADO 3500 HD, SILVERADO 4500HD, SONIC, SONOMA, SPARK, SPARK EV, SRX, SS, SSR, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TERRAZA, TOPKICK, TRACKER, TRAILBLAZER, TRANS SPORT, TRAVERSE, TRAX, UPLANDER, V SERIES, VENTURE, VERANO, VOLT, W SERIES, W-SERIES, XLR, XT4, XT5, XT6, XTS, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2000–2021)

Bulletin 21NA124 — May 25, 2021