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Mazda CX-5 Front Turn Signal Light Bulb Replacement Guide
How to change a burnt out front turn signal bulb in the headlight housing of a 2017 to 2022 Mazda CX-5 SUV.

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2019 CX-5 Headlight
Turn Signal Bulb Socket
Gray Round Bulb Socket
This automotive maintenance tutorial was specifically written to assist owners of the second generation (2017, 2018, 2019, 2020, 2021 and 2022) Mazda CX-5 SUV in changing a burnt out front turn signal light bulb.

Owners of other Mazda vehicles such as the CX-3, CX-30, CX-7, CX-9, Mazda3, Mazda6, MX-30, MX-5 Miata, Mazda2, CX-4, CX-8 and BT-50 may also find these DIY instructions to be helpful.

The compatible replacement wedge base light bulb part number is 7444NA which is available from various manufacturers such as Sylvania, Philips, Bosch, GE, Eiko and PIAA.

If you'd like to have brighter front turn signal lights that will also last much longer before burning out like the traditional incandescent bulbs, install some 7444NA LED units.

No tools are needed to access and replace the light bulbs.

The first two steps are to open the hood and then move to the side of the vehicle with the burnt out light bulb. The steps for changing the driver side and passenger side bulbs are the same.

The front turn signal light is located close to the inner edge of the headlight assembly.


1/4 Turn Counterclockwise
Bulb Socket Removed
Pull Out Old Light Bulb
Look behind the headlight housing and locate the round gray plastic front turn signal bulb socket.

Rotate the bulb socket 1/4 turn in the counterclockwise direction to unlock it.

Pull the bulb socket straight out of the housing.

If the old light bulb was recently turned on, be careful when you remove it. The old bulb might still be hot enough to burn your fingers.

Carefully pull the old light bulb straight out of the socket.

If you have trouble removing the old light bulb due to corrosion (rust), sand or other debris, put on some protective gloves and try gently wiggling the bulb back and forth while pulling it straight out.

OEM Bulb # 7444NA
Push In New Light Bulb
Empty Bulb Housing
Push a new amber colored number 7444NA wedge base light bulb straight into the socket.

If you'd like to have brighter front turn signal lights, install some compatible replacement 7444NA LED units.

Clean off any oil, grease or dirt on the new incandescent bulb with a paper towel and some rubbing alcohol.

Any oil on the new bulb could cause a hot spot which may reduce the lifespan of the bulb.

1/4 Turn Clockwise
Bulb Socket Installed
Test New Turn Signal
Reinsert the bulb socket into the housing and rotate it 1/4 turn in the clockwise direction to secure it into place.

To test the new light bulb, activate the hazard signals.

Tip - If you installed an LED bulb and it doesn't work, try removing it from the socket, rotate it 180 degrees and then push it back into the socket. Some LED bulbs are "polarized" and will only work when the "+" positive and "-" negative electrical contacts are in the correct orientation.

Be sure to write down the bulb change in your vehicle's service records.

Please check out all of my 2017-2022 Mazda CX-5 DIY Repair & Maintenance Guides.

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