Standard Ignition AX495 Ambient Air Quality Sensor

Brand Standard Ignition AX495
Assign AZ UPC False
Connector Gender Female
Connector Quantity 1
Connector Shape Rectangular
Contains Electronic Components? No
Does it require SDS? No
Is it a chemical? No
Is or contains a battery? No
Is or contains a bulb? No
Is the item CARB affected? No
Terminal Gender Male
Terminal Quantity 3
Terminal Type Pin
Fits Buick and Cadillac · 29 vehicles

Direct-fit sensor. Built for HVAC air-quality monitoring with a single rectangular connector.

Electrical match. Three male pin terminals support a clean replacement connection.

Cross-references 5S13745, 13231067 and 13545810 for the same application. See all 8.

$50.89Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing β€” free returns if it doesn't
Step 2 — Quantity
Order total $50.89
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Ambient Air Quality Sensor Overview

Standard Ignition AX495 is an ambient air quality sensor for HVAC systems with confirmed fitment across select Cadillac and Buick applications. It uses a single rectangular female connector with three male pin terminals for a direct electrical interface.

Key Features

  • Ambient air quality sensor for HVAC monitoring
  • Rectangular connector design with one female connector
  • Three male pin terminals for the electrical connection
  • Fits select Cadillac CT6, CTS, XTS, and SRX applications
  • Fits 2010-2013 Buick LaCrosse, N/A

Detailed Description

Standard Ignition AX495 is built for vehicles that use an ambient air quality sensor in the HVAC system to monitor incoming air conditions. The connector layout includes one rectangular female connector and three male pin terminals, which supports a straightforward electrical match when replacing the original sensor. This part number, AX495, is listed for 2010-2013 Buick LaCrosse, N/A and multiple Cadillac applications including CT6, CTS, XTS, and SRX. If you are sourcing an ambient air quality sensor for a Cadillac CTS or Cadillac XTS, AX495 provides a fitment-specific replacement option.

What It Is Used For

  • Replacing a failed ambient air quality sensor in the HVAC system
  • Restoring sensor input for cabin air monitoring
  • Addressing HVAC warning or sensor-related fault conditions
  • Correcting connector mismatch issues during sensor replacement
  • Supporting proper operation in Cadillac and Buick HVAC applications

Installation Notes and Tips

Verify connector shape, terminal count, and vehicle fitment before installation. Confirm the application against the original part number AX495 and the vehicle's HVAC sensor configuration. Use the fitment list to match the exact year and model before ordering.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and HVAC service parts. This part cross-references Monroe Shocks & Struts (e.g., 5S13745, 13231067) for the same application.

This part fits 29 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2020CadillacCT6———
2019CadillacCT6———
2019CadillacCTS———
2019CadillacXTS3.6LV6—
2018CadillacCT6———
2018CadillacCTS———
2018CadillacXTS3.6LV6—
2017CadillacCT6———
2017CadillacCTS———
2017CadillacXTS3.6LV6—
2016CadillacCT6———
2016CadillacCTS———
2016CadillacSRX3.6LV6—
2016CadillacXTS3.6LV6—
2015CadillacCTS———
2015CadillacSRX3.6LV6—
2015CadillacXTS3.6LV6—
2014CadillacCTS———
2014CadillacSRX3.6LV6—
2014CadillacXTS3.6LV6—
2013BuickLaCrosse———
2013CadillacSRX3.6LV6—
2013CadillacXTS3.6LV6—
2012BuickLaCrosse———
2012CadillacSRX3.6LV6—
2011BuickLaCrosse———
2011CadillacSRX2.8LV6—
2010BuickLaCrosse———
2010CadillacSRX2.8LV6—
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
5S137451323106713545810AM0002ATSA381TS7687V30-72-0798WT5973