What Size Bulbs Does a 2015 Infiniti QX70 Use?
Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.
Installation Difficulty
Easy (Plug and Play)
Est. Replacement Cost
$50 - $150 (HID System)
What Lighting System Does the 2015 Infiniti QX70 Have?
The 2015 Infiniti QX70 features an extensive lighting system with 13 bulb positions. It uses factory HID/Xenon technology with D2S projector headlights. The QX70 has been available from 2014 to 2017, and the 2015 model falls in the mid-generation years.
Can You Put LED Bulbs in a 2015 Infiniti QX70?
The 2015 Infiniti QX70 comes equipped with factory D2S HID/Xenon headlights. These already produce significantly more light than halogen bulbs, so upgrading is generally unnecessary. When your HID bulbs burn out, replace them with OEM-spec D2S HID bulbs to maintain the correct color temperature and beam pattern. Avoid cheap aftermarket HID bulbs as they can produce incorrect beam patterns and blind oncoming drivers. Your fog lights use a H8 LED halogen bulb, which can be upgraded to LED for a whiter color match with your HID headlights.
How to Replace Bulbs on a 2015 Infiniti QX70
To remove the headlight bulb, disconnect the wiring harness, then twist the bulb counter-clockwise and pull it straight out of the housing. Older model years like the 2015 QX70 typically offer easy access to the headlight bulbs from behind the headlight assembly under the hood. Most owners can complete the swap in under 10 minutes per side. HID headlights operate at high voltage. Always disconnect the battery before working on the headlight assembly. Never touch the HID ballast while the headlights are on, and handle the D2S capsule with gloves to avoid oil contamination. The fog lights are accessed from underneath the front bumper. You may need to remove a few plastic clips or screws from the fender liner to reach the H8 LED fog light socket.
Full Upgrade Bundle
Upgrade All 13 Positions at Once
2015 Infiniti QX70 Complete Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
Low Beam | HID-D2S LED | Buy HID-D2S LED |
High Beam | HID-D2S LED | Buy HID-D2S LED |
Fog Light | H8 LED | Buy H8 LED |
Brake Light | LED Bulb | Buy LED Bulb |
Side Marker | 168 LED | Buy 168 LED |
Turn Signal Front | 7440NA LED | Buy 7440NA LED |
Turn Signal Rear | 7440 LED | Buy 7440 LED |
Dome Light | 175 | Buy 175 |
License Plate | 168 | Buy 168 |
Map Light | 175 | Buy 175 |
Parking Light | 168 | Buy 168 |
Reverse Light | 7440 | Buy 7440 |
Trunk Light | DE3175 | Buy DE3175 |
Want to upgrade everything at once?
Shop Complete LED Kit for 2015 Infiniti QX70How Long Do 2015 Infiniti QX70 Headlight Bulbs Last?
HID/Xenon headlights on the 2015 Infiniti QX70 typically last 2,000 to 3,000 hours, or about 4 to 6 years of regular driving. As HID bulbs age, they shift color toward pink or purple, which is a clear sign that replacement is needed. Flickering on startup also indicates a worn bulb or failing ballast. At 11 years old, the original bulbs on your QX70 are likely overdue for replacement. Even if they still illuminate, reduced brightness significantly impacts nighttime safety. When one headlight burns out, replace both sides at the same time. Bulbs from the same batch age at similar rates, and mismatched brightness is distracting to oncoming drivers.
What Bulbs Are Compatible with the 2015 Infiniti QX70?
Using the wrong bulb size can cause improper beam patterns that reduce your visibility and blind other drivers. It can also cause overheating inside the headlight housing, potentially warping the plastic lens or reflector. Always verify the bulb number before purchasing.
2015 Infiniti QX70 Headlight FAQ
Did Infiniti QX70 Bulb Sizes Change Over the Years?
The Infiniti QX70 has maintained consistent bulb sizes across all model years from 2014 to 2017. The low beam has used a HID-D2S LED bulb throughout, which means replacement parts and LED upgrade kits are widely available and well-tested for this model. If you find a deal on bulbs for any QX70 year in this range, they will fit your 2015 model.
Other QX70 Years
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Other Vehicles That Use HID-D2S LED Bulbs
These vehicles from other makes also use a HID-D2S LED low beam bulb: