How to find the right Automotive Replacement Courtesy Lamp Sensors AI guide

Written by an AI model from its trained knowledge.

What the AI looks for in Automotive Replacement Courtesy Lamp Sensors

Where the switch actually is
Confirm whether your vehicle uses a door-jamb plunger switch or a switch built into the door latch Many newer vehicles sense door-ajar in the latch, so a jamb switch will not fit or fix anything.
Plunger length and style
Match plunger length, thread or press-in mount and boot style to the original Wrong plunger travel leaves lights on or off with the door shut.
Circuit type
Match single-terminal ground-through-body switches vs. two-terminal and connector-equipped switches Wiring and grounding differ, and the wrong type won't trigger the lamp or body module.

Brands that matter

  • Standard Motor Products: Large range of door jamb and courtesy switches.
  • Dorman: Common source for jamb switches and latch assemblies.
  • ACDelco: OE choice for GM.
  • Motorcraft: OE choice for Ford.

What to avoid

  • Buying a jamb switch for a vehicle with latch-integrated door sensing
  • Ignoring corrosion on the mounting point of ground-through-body switches

Decided by claude-opus-5-5 (opus-5-5_g1), knowledge as of 2026-06, generated October 29, 2026. Written by an AI model from its trained knowledge, without web search. How picks are made.

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