WCS Autotecnica GM1318664 A/C ETR Switch Air Conditioning Control

The WCS Autotecnica GM1318664 is a replacement A/C ETR (Electronic Temperature Regulation) Switch designed to restore proper air conditioning control system function in compatible General Motors vehicles. This switch serves as a critical interface component within the HVAC control module, regulating the engagement and operation of the air conditioning system based on driver input.

Manufactured to meet or exceed OEM specifications, this aftermarket replacement offers a cost-effective alternative to the original GM part, ensuring reliable performance and proper fit without the dealer price premium.

Key Features:

• Direct replacement for OEM GM part number GM1318664
• Restores proper A/C system engagement and electronic temperature regulation
• Designed to meet or exceed original equipment specifications
• Plug-and-play fitment — no modification required
• Durable construction for long service life

If your air conditioning system is unresponsive, intermittent, or fails to engage correctly, a faulty ETR switch is a common cause. This WCS Autotecnica replacement provides a reliable, direct-fit solution to get your climate control system operating as intended.