Standard Ignition AX658 Ambient Air Temperature Sensor

Brand Standard Ignition AX658
Terminal Quantity 2
Connector Gender Female
Terminal Gender Male
Attachment Method Plug in
Color/Finish Black
Connector Quantity 1
Connector Shape Polygon
Connector Type Plug in
Contents Sensor
Port Quantity 1
Terminal Type Blade
Fits Buick, Cadillac, Chevrolet, and GMC · 32 vehicles

Plug-in design. Simple connector style for straightforward installation.

Blade terminals. Provides a secure electrical connection.

Ambient air sensor. Monitors outside air temperature for HVAC control.

Cross-references 23457451, ATSA552 and TS7684 for the same application. See all 4.

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Ambient Air Temperature Sensor for GM HVAC Systems

Standard Ignition AX658 is an ambient air temperature sensor used in HVAC systems that rely on accurate outside-air temperature input. It features a 2-terminal blade connection, a female plug-in connector, and a black polygon-shaped housing for grille-mounted applications.

Compatible With 2016-2023 Cadillac, Chevrolet, Buick, and GMC grille-mounted applications, this sensor supports temperature reporting for vehicles such as the Buick Enclave, Cadillac XT6, Chevrolet Blazer, Chevrolet Traverse, Cadillac CT6, Cadillac XTS, and GMC Acadia. Standard Ignition AX658 is built for direct replacement service where the original ambient sensor mounts in the grille.

  • Part number: AX658
  • Ambient air temperature sensor for HVAC temperature input
  • 2-terminal blade design with 1 female plug-in connector
  • Black housing with polygon connector shape
  • Grille-mounted application
  • Cross-reference: 23457451, TS7684

Fitment Details

  • Fits 2018-2023 Buick Enclave, In Grille
  • Fits 2020-2023 Cadillac XT6, In Grille
  • Fits 2019-2023 Chevrolet Blazer, In Grille
  • Fits 2018-2023 Chevrolet Traverse, In Grille
  • Fits 2016-2020 Cadillac CT6, In Grille
  • Fits 2017-2019 Cadillac XTS, In Grille
  • Fits 2017-2019 GMC Acadia, In Grille

What This Sensor Helps Address

  • Incorrect outside temperature display on the dash
  • HVAC system temperature input errors
  • Faulty grille-mounted ambient air sensor readings
  • Temperature-related climate control inconsistencies
  • Replacement needs after sensor damage or connector wear

Installation Notes and Tips

Install AX658 in the grille location specified by the vehicle application and verify the connector style before installation. Confirm the sensor seats securely and that the wiring connector locks fully into place. After installation, check the outside temperature reading and HVAC operation to confirm proper signal transfer.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. AX658 is built as a direct-fit ambient air temperature sensor for the listed GM applications.

This part fits 32 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2023BuickEnclave3.6LV6In Grille
2023CadillacXT6In Grille
2023ChevroletBlazerIn Grille
2023ChevroletTraverseIn Grille
2022BuickEnclave3.6LV6In Grille
2022CadillacXT6In Grille
2022ChevroletBlazerIn Grille
2022ChevroletTraverseIn Grille
2021BuickEnclave3.6LV6In Grille
2021CadillacXT6In Grille
2021ChevroletBlazerIn Grille
2021ChevroletTraverseIn Grille
2020BuickEnclave3.6LV6In Grille
2020CadillacCT6In Grille
2020CadillacXT6In Grille
2020ChevroletBlazerIn Grille
2020ChevroletTraverseIn Grille
2019BuickEnclave3.6LV6In Grille
2019CadillacCT6In Grille
2019CadillacXTSIn Grille
2019ChevroletBlazerIn Grille
2019ChevroletTraverseIn Grille
2019GMCAcadiaIn Grille
2018BuickEnclave3.6LV6In Grille
2018CadillacCT6In Grille
2018CadillacXTSIn Grille
2018ChevroletTraverseIn Grille
2018GMCAcadiaIn Grille
2017CadillacCT6In Grille
2017CadillacXTSIn Grille
2017GMCAcadiaIn Grille
2016CadillacCT6In Grille
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
23457451ATSA552TS7684WT5996