Dorman 902-027 Ambient Air Temperature Sensor

Dorman 902-027 Ambient Air Temperature Sensor

The Dorman 902-027 ambient air temperature sensor measures outside air temperature for vehicles that rely on accurate HVAC and display readings. Built to match the original sensor’s fit and function, it is engineered for durable, reliable performance in everyday driving conditions.

Key Features

• Measures ambient air temperature for HVAC and dash display systems
• OE-style replacement for specified Buick, Chevrolet, Cadillac, GMC, Pontiac, Saturn, Hummer, and Oldsmobile applications
• Clip-on mounting with a female, 2-terminal blade connector
• L-shaped connector design for proper routing and connection
• Copper, brass, and plastic construction for application-specific durability
• Operating range listed from 32°F to 176°F
• Part number 902-027 for easy identification

Detailed Description

This ambient air temperature sensor is used in vehicles such as the Chevrolet Silverado 1500, Chevrolet Impala, GMC Sierra 1500, and Buick Enclave where the outside temperature reading supports HVAC operation and driver information displays. Dorman 902-027 is built to match the original sensor’s fit and function, helping restore accurate ambient temperature measurement across a wide range of GM platforms. This part cross-references Standard Ignition AX156 for the same application.

Compatible With 2000-2022 Buick, Chevrolet, Cadillac, GMC, Pontiac, Saturn, Hummer, and Oldsmobile applications listed in the fitment data, including Chevrolet Spark, Trax, Equinox, Malibu, Silverado, and GMC Terrain, Acadia, and Sierra models. The part number 902-027 is also a useful reference when verifying replacement sensor selection for GM HVAC temperature input systems.

What It Helps Solve

• Inaccurate outside temperature display on the instrument panel
• HVAC readings that do not reflect actual ambient conditions
• Faulty ambient air temperature sensor signal issues
• Replacement needs after sensor damage, corrosion, or connector wear
• Restoration of temperature input on GM trucks, SUVs, and cars

Installation Notes and Tips

Install using the clip-on mounting style and verify the L-shaped female connector seats fully before operation. Check the vehicle’s existing bracket or retainer setup, since some listed applications note bracket or push-pin retainer differences. Confirm the vehicle year, make, model, and notes against the fitment list before ordering. Part number 902-027 should be matched to the original connector style and mounting location for proper installation.

Quality Assurance

Dorman designs this sensor to match original fit and function and to deliver dependable service in specified applications. The construction uses copper, brass, and plastic materials selected for the demands of ambient temperature sensing in automotive HVAC systems.