Standard Ignition AX636 Cabin Air Temperature Sensor

Cabin Air Temperature Sensor for GM Dash HVAC

Standard Ignition AX636 is a cabin air temperature sensor used in dash-mounted HVAC systems on select Buick, Cadillac, and Chevrolet vehicles. It provides the temperature input the climate control system uses to manage interior comfort and automatic HVAC operation.

Key Features

• Brand: Standard Ignition
• Part number: AX636
• Cabin air temperature sensor for HVAC systems
• Clip attachment method for dash mounting
• Black finish
• Female plug connector with polygon shape
• 2 male blade terminals
• Sensor included

Application Details

Compatible with dash-mounted HVAC sensor locations on 2016-2020 Buick Envision, 2016-2019 Cadillac CT6, 2014-2019 Cadillac CTS, 2013-2019 Cadillac XTS, 2014-2019 Chevrolet Corvette, and 2010-2016 Cadillac SRX. This part cross-references 25917885 and TS57662 for the same application. Standard Ignition AX636 is a direct-fit cabin air temperature sensor for vehicles that use a dash location and a 2-terminal blade-style connection.

What It Is Used For

• Restoring inaccurate cabin temperature readings
• Addressing HVAC systems that cycle air incorrectly
• Correcting automatic climate control response issues
• Replacing a damaged dash-mounted temperature sensor
• Resolving intermittent interior temperature feedback faults

Installation Notes

Verify the connector shape, terminal style, and dash mounting location before installation. Inspect the HVAC harness and connector for corrosion, bent terminals, or damaged locking tabs, and confirm the sensor seats securely with the clip attachment. Match the vehicle application and part number AX636 to the original sensor configuration before final assembly.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. AX636 is built for the specified HVAC sensor application and should be matched to the original equipment configuration for proper fit and function.