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2018 GMC 1500Sierra

2018 GMC 1500Sierra Transmission Wiring Diagrams

7 Transmission wiring diagrams cataloged for the 2018 GMC 1500Sierra. Includes A T Circuit 6 Speed, A T Circuit 8 speed, Transfer Case Circuit 2-Speed Manual and 1 more. Review the protected preview and vehicle details before ordering.

2018 GMC 1500Sierra Transmission wiring diagram preview
Product preview

System

Transmission

Included

7 wiring diagrams

Delivery

Private digital delivery after payment

What this package covers

This listing is tied to one catalog record, not a generic vehicle page. Check the fitment fields, diagram count, representative filename, and preview against the vehicle you are repairing before purchase.

Catalog fitment: 2018 GMC 1500Sierra

Electrical system: Transmission

7 diagram files in this system package

Representative file: Fig._152_A_T_Circuit_6_Speed_1_of_2.svg

Diagrams in this package (7)

  1. Fig. 152A T Circuit 6 Speed (1 of 2)
  2. Fig. 153A T Circuit 6 Speed (2 of 2)
  3. Fig. 154A T Circuit 8 speed (1 of 2)
  4. Fig. 155A T Circuit 8 speed (2 of 2)
  5. Fig. 156Transfer Case Circuit 2-Speed Manual
  6. Fig. 157Transfer Case Circuit 2-Speed w/ Push Button Control (1 of 2)
  7. Fig. 158Transfer Case Circuit 2-Speed w/ Push Button Control (2 of 2)

Independent catalog notice

WireTorque is an independent technical-document catalog and is not affiliated with or endorsed by the vehicle manufacturer. Read how listings are matched, reviewed, and corrected in our content standards.

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Full vehicle package

34 systems / 163 diagrams for $12.90Save $68.60