Turn Signal/Multifunction Switch X3

2010 Buick Lucerne CXL, 3.9 1SECTION Turn Signal/Multifunction Switch X3
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Turn Signal/Multifunction Switch X3 Connector End View
GM39746Courtesy of GENERAL MOTORS COMPANY
Turn Signal/Multifunction Switch X3

Pin Wire Circuit Function
A-E - - Not Used
F 0.35 L-BU/WH 1414 Left Turn Signal Switch Signal
G 0.35 BK 350 Ground
H 0.35 D-BU/WH 1415 Right Turn Signal Switch Signal
Connector Part Information
  • Harness Type: Steering Column
  • OEM Connector: 12064862
  • Service Connector: 12126438
  • Description: 8-Way F Metri-Pack 150 Series (BK)
Terminal Part Information
  • Terminated Lead: Service by Harness - See Part Catalog
  • Release Tool: Not Available
  • Diagnostic Test Probe: Not Available
  • Terminal/Tray: Not Available
  • Core/Insulation Crimp: Not Available
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.