To ensure reliability, purchase GM part # 13545621 Sensor Assembly, Sun Load & Amb Lgt & Security. It is sometimes referred to as GMC Ambient Temperature Sensor. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific GMC Sierra, Terrain, Yukon models.
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