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Mazda CX-9 Headlight Bulbs Replacement Guide
How to replace the low beam, high beam, turn signal, parking and sidemarker light bulbs in 2007-2012 Mazda CX-9.

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Mazda CX-9 Headlight
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Parking Light & High Beam
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Low Beam Headlamp On

This automotive "how-to" guide was specifically written to assist owners of the 2008 to 2012 Mazda CX-9 SUV in replacing any of the light bulbs in the headlight assemblies.

Owners of other Mazda vehicles such as the MAZDA2, MAZDA3, MAZDA6, MX-5 Miata, RX-8, MAZDASPEED3, MAZDA5, Tribute SUV, and CX-7 crossover may also find this guide to be helpful.

The headlight assembly of a '08-'12 Mazda CX-9 contains the following light bulbs with their respective part numbers: Low Beam # H11, High Beam # 9005, Parking Light # 2825, Front Turn Signal # 992 (7440A) and Front Sidemarker # 2827.

No tools are needed to replace any of the headlight bulbs. The bulbs are available from a variety of manufacturers such as Sylvania, GE, PIAA, Philips, Eiko, and Nokya.

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High Beam Bulb Dust Cover
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1/4 Turn Counter Clockwise
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Remove Dust Cover
The small Parking Light bulb and the High Beam bulb are located next to each other at the corner of the headlight assembly closest to the center line of the vehicle. (For an illustration of where each bulb is located in the headlight, please take a look at Picture 1 on this page.)

To access them, you'll need to first remove the black plastic dust cap by rotating it 1/4 turn counter clockwise. The parking light bulb has a small light grey socket while the high beam bulb has a black base and a blue power connector.

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Dust Cap Removed
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High Beam & Parking Light
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1/4 Turn Counter Clockwise
Remove the parking light bulb by rotating the light grey socket 1/4 turn counter clockwise and pull it straight out. Then pull the old # 2825 light bulb straight out of the socket.

Push in a new # 2825 bulb, insert the bulb and socket back into the headlight and rotate it 1/4 turn clockwise to secure it in place.

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Parking Light Removed
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Pull Out # 2825 Bulb
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Grab High Beam Bulb Base
To remove the high beam bulb, rotate the black base and blue power connector 1/4 turn counter clockwise and pull it straight out of the headlight assembly.
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1/4 Turn Counter Clockwise
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Pull Out High Beam Bulb
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Blue Power Connector
Separate the blue power connector from the black base of the high beam bulb by lifting up on the release tab before pulling them apart.
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Lift Up Release Tab
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Sylvania 9005 High Beam
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High Beam Bulb Socket
Push a new # 9005 high beam bulb on to the blue power connector, insert it into the headlight assembly, and rotate it 1/4 turn clockwise to secure it in place.
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Insert New High Beam Bulb
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1/4 Turn Clockwise
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Replace Black Dust Cap
Double check that the parking light and high beam bulb sockets are securely in place before replacing the round dust cover by rotating it 1/4 turn clockwise.
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Low Beam Headlamp
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Low Beam Bulb Dust Cap
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1/4 Turn Counter Clockwise


 
The Low Beam headlight bulb is located at the center of the headlight assembly. To access it, first remove the black plastic dust cap by rotating it 1/4 turn counter clockwise.
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Remove Low Beam Cap
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# H11 Low Beam Bulb Base
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1/4 Turn Counter Clockwise
To remove the low beam bulb, rotate the base 1/4 turn counter clockwise and pull it straight out of the headlight assembly.
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Remove Low Beam Bulb
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Light Grey Power Connector
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Lift Up Tab - Release Power
Separate the light grey power connector from the low beam bulb's base by lifting up on the release tab before pulling them apart.
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Philips # H11 Low Beam
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Power Plug On New Bulb
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Low Beam Bulb Receptacle
Push the light grey power connector on to the base of a new # H11 low beam bulb, insert the bulb into the headlight assembly and rotate it 1/4 turn clockwise to secure it in place.
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Install New Low Beam Bulb
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1/4 Turn Clockwise
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Re-Install Dust Cap
Re-install the round black plastic dust cover over the rear of the headlight assembly and rotate' it 1/4 turn clockwise to secure it in place.
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1/4 Turn Clockwise
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Turn Signal & Sidemarker
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Turn Signal Bulb Socket
The sidemarker and turn signal light bulbs are located at the corner of the headlight assembly closest to the outer edge of the vehicle. The turn signal bulb has a light grey socket and the side marker bulb has a black socket.
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1/4 Turn Counter Clockwise
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Pull Out Old # 992 Bulb
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Sidemarker Bulb Socket
Remove the turn signal bulb by rotating the light grey base 1/4 turn counter clockwise before pulling it straight out of the headlight assembly. Pull the old # 992 (A.K.A. 7440A) light bulb straight out of the socket and push in a new one. Re-install the bulb and socket back into the headlight assembly and rotate it 1/4 turn clockwise to secure it in place.
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1/4 Turn Counter Clockwise
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Pull Out Old # 2827 Bulb
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Test New Low Beam
To remove the amber colored sidemarker light bulb, rotate the black base 1/4 turn counter clockwise and pull it straight out of the headlight assembly. Pull the old # 2827 sidemarker bulb straight out of the socket and push in a new 2827 bulb. Re-install the bulb and socket into the headlight assembly before rotating it 1/4 turn clockwise to secure it in place.
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Test New High Beam Bulb
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Test Turn Signal & Sidemarker
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Parking Light By High Beam
Test the new bulbs by turning on the headlights, activating the hazard signals and flashing the high beams.

For more, check out my Mazda CX-9 Repair & Maintenance Guides page.
 

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