2021 CHEVROLET TRAILBLAZER spark plugs replace

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Page 320 of 363

CHEVROLET TRAILBLAZER 2021  Owners Manual Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Service and Maintenance 319
Maintenance Schedule Additional
Required Services - Normal12 000 km/7,500

Page 322 of 363

CHEVROLET TRAILBLAZER 2021  Owners Manual Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Service and Maintenance 321
Maintenance Schedule Additional
Required Services - Severe12 000 km/7,500

Page 327 of 363

CHEVROLET TRAILBLAZER 2021  Owners Manual Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
326 Service and Maintenance
Maintenance Replacement Parts
Replacement parts identified below by name,