Genuine OEM Mazda AT Shifter Switch KDY0-46-040 – Fits 2013–2014 CX-5 & 2014 Mazda6 (Gate-Type Automatic)

Genuine Mazda KDY0-46-040 AT Shifter Switch

Experiencing an issue where your Mazda radio stays on after turning off the engine? Does the ignition remain in accessory mode even when the shifter is in the Park position?

The Mazda KDY0-46-040 AT Shifter Switch is a genuine OEM replacement component designed to restore proper Park position detection in select Mazda vehicles equipped with gate-type automatic transmissions.

When this switch begins to wear, the vehicle may fail to recognize that the transmission is fully in Park. As a result, the ignition system may remain active, causing shutdown and accessory mode issues.

OEM Part Numbers

• KDY0-46-040
• KDY046040

Aftermarket Part Number

• DORMAN 926548

Common Symptoms of a Failed Shifter Switch

• Radio stays on after engine shutdown
• Ignition remains in accessory mode
• Vehicle electronics do not power down correctly
• Park position is not recognized
• Intermittent ignition shutdown issues

Product Highlights

• ✔ Genuine Mazda OEM Part
• ✔ Direct Replacement
• ✔ No Programming Required
• ✔ Fixes radio staying on issues
• ✔ Restores proper Park position detection
• ✔ Updated Mazda replacement design

Condition

New Genuine Mazda OEM Part

Product Type

Automatic Transmission Shifter Switch / Park Position Switch

Function

This switch is installed inside the automatic transmission shifter assembly. Its primary function is to detect the Park position and communicate that status to the vehicle's electronic systems. A failed switch may prevent the ignition from shutting down correctly and leave the vehicle in accessory mode.

Compatible Vehicles

Mazda CX-5

• 2013 Mazda CX-5 2.0L
• 2014 Mazda CX-5 2.0L
• 2014 Mazda CX-5 2.5L

Mazda 6

• 2014 Mazda 6 2.5L

Important: Please verify compatibility using your VIN before ordering.

Technical Service Bulletin Reference

This part is associated with Mazda service information related to Park position detection and ignition shutdown concerns.

Reference: Mazda TSB 05-003/19

Box Includes

• 1 × Genuine Mazda KDY0-46-040 AT Shifter Switch

Technical Specifications

Brand	Mazda
Manufacturer	Mazda Motor Corporation
Part Number	KDY0-46-040
Alternate Part Number	KDY046040
Seller SKU	mazda_switch
Product Type	AT Shifter Switch
Operation Mode	Automatic
Current Rating	6A
Contact Type	Normally Open
Connector Type	X-10
Switch Type	Touch Switch
Material	Plastic
Circuit Type	1-Way
Mounting Type	Panel Mount
Color	White
Condition	New
Programming Required	No

Warranty

Manufacturer warranty may vary by supplier, seller, and region. Please contact us before purchase if warranty confirmation is required.

User Manual & Service Bulletin

Download the official Mazda Technical Service Bulletin related to Park Position Detection and AT Shifter Switch diagnostics:

📄 Download Official Mazda Service Bulletin (PDF)

This document contains Mazda diagnostic procedures, repair information, and service recommendations for affected vehicles.

Installation Video

Click the image above to watch the installation video.

FAQ

What symptoms does this switch fix?

• Radio stays on after engine shutdown
• Ignition remains in accessory mode
• Vehicle electronics remain powered on
• Vehicle fails to recognize Park position

Is this a genuine Mazda part?

Yes. This is a Genuine Mazda OEM replacement part.

Does this part require programming?

No. This is a direct replacement switch and does not require programming or coding.

Will this fix the radio staying on issue?

In many affected Mazda CX-5 and Mazda 6 vehicles, this switch is a common repair for the radio staying on and accessory mode issue.

Should I verify compatibility before ordering?

Yes. VIN verification is strongly recommended before purchase.