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25775833 Ambient Air Temperature Sensor with Connector Pigtail Harness – Direct Replacement for GMC Sierra 3500 HD, Chevy Silverado HD, Cadillac Escalade, Colorado & More

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$12.99

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  • Exact OEM Replacement: Directly replaces part number 25775833 and fits 2003-2021 GM vehicles, including GMC Sierra HD (2003-2014), Chevy Silverado HD (2004-2014), Cadillac Escalade (2006-2014), Colorado (2004-2012), and Hummer H2/H3.
  • Complete Harness Kit: Includes pre-wired connector pigtail for plug-and-play installation—no splicing or soldering required.
  • Restores Accurate Readings: Fixes erratic temperature displays, incorrect HVAC operation, and dashboard warnings (e.g., U0155, U0423 codes).
  • Durable Construction: High-quality, corrosion-resistant thermoplastic withstands extreme weather (-40°F to 250°F) and road debris.
  • Easy Installation: Designed for straightforward installation, making it a quick and easy solution for your vehicle’s maintenance needs.


Ensure precise climate control and engine performance with the 25775833 Ambient Air Temperature Sensor, a complete OEM-grade replacement kit designed for GM trucks and SUVs. This sensor restores accurate ambient temperature readings to resolve HVAC malfunctions, incorrect gauge displays, and warning lights, ensuring comfort and safety in all driving conditions.
 Guaranteed Fitment
Compatible with:
 GMC: Sierra 1500/2500/3500 HD (2003-2014), Yukon (2003-2006), Acadia (2007-2017)
 Chevrolet: Silverado HD (2004-2014), Colorado (2004-2012), Suburban (2003-2014), Traverse (2009-2017)
 Cadillac: Escalade (2006-2014), CTS (2005-2015), SRX (2006-2016)
 Other Models: Hummer H2/H3, Buick Enclave, Saturn Outlook, Pontiac Torrent. Confirm your vehicle’s year and model before purchase.
 Quick DIY Installation
 Locate the sensor behind the grille or bumper (refer to manual).
 Unplug the old sensor and remove it from the bracket.
 Secure the new sensor and connect the harness—no tools needed.
 Clear error codes and test HVAC/display functionality.
 Symptoms This Sensor Fixes:
 Inaccurate outside temperature readings
 HVAC blowing hot/cold air inconsistently
 “Service Climate Control” or “Check Engine” warnings
 Faulty automatic headlight or defrost systems
 Technical Specifications:
 Part Numbers: 25775833, 15866609, 15325946
 Material: Thermoplastic housing, brass probe
 Voltage: 5V DC
 Package Includes:
1 x Ambient Air Temperature Sensor with Pigtail Harness