Cadillac CTS 2013 Bulb Size
Bulb size chart
If you are looking up the bulb sizes for a 2013 Cadillac CTS, this page is designed to help you verify the correct bulb by lighting position before you buy replacements. The CTS could be equipped with different headlight and exterior lighting setups, so matching the bulb to the exact lamp location matters.
Use the chart on this 2013 Cadillac CTS page to confirm common bulbs for low beam, high beam, fog lights, parking lights, license plate lights, and interior lamps. That makes it easier to replace a single burned-out bulb or plan a full lighting refresh with the right fit the first time.
Fitment on the 2013 Cadillac CTS can vary by trim, body style, market, and lighting package, so always compare the bulb position on your vehicle with the chart before ordering. This is especially important for halogen versus HID-equipped cars, since the headlight and front turn signal bulb types are not the same across all versions. If you are considering aftermarket LED replacements or other conversions, make sure the bulb base, connector, and beam pattern are appropriate for the housing. When possible, check the installed bulb number directly on the old bulb or remove one lamp and confirm it before purchasing a replacement.
FAQ
What bulb does the low beam use on a 2013 Cadillac CTS?
The listed low beam bulb is H11 for the 2013 Cadillac CTS. Always confirm your headlight setup before ordering, because some versions use a different HID-based arrangement.
What bulb is used for the high beam on this CTS?
The standard high beam bulb listed is H9. If your CTS has a different headlight package, the bulb arrangement may change.
Does the 2013 Cadillac CTS use HID headlights on some trims?
Yes, some 2013 Cadillac CTS models can be equipped with HID headlights. For those setups, the chart lists D1S for the headlight bulb high beam and low beam function.
What is the front fog light bulb size?
The front fog light bulb is listed as H11 LED. If you are replacing fog lights, check that the LED replacement is compatible with the housing and any factory electronics.
What bulb fits the front side marker light?
The front side marker light bulb is 194 on this page for the 2013 Cadillac CTS.
What bulb do I need for the license plate lights?
The license plate light bulb is 2825. This same bulb number is also listed for the parking light bulb and dome light bulb positions on this page.
What bulb is used for the parking lights?
The parking light bulb is listed as 2825. Verify the exact lamp position on your CTS, since exterior lighting can differ by package.
What bulb fits the dome light?
The dome light bulb is 2825 for the 2013 Cadillac CTS.
What bulbs are used inside the cabin, such as the glove box and door lights?
The glove box light bulb and interior door light bulb are both listed as 906. These are common interior fitments, but it is still smart to compare the old bulb before buying.
What bulb is used for the stepwell lights?
The stepwell light bulb is 2886X on this page for the 2013 Cadillac CTS.
What bulb fits the vanity mirror light?
The vanity mirror light bulb is 6612F. If you are replacing both sides, check that the new bulbs match in brightness and color.
What bulb is used for the trunk or cargo area light?
The trunk or cargo area light bulb is 211-2. This is a useful bulb to replace if the rear cargo area light has gone dim or stopped working.
What bulb does the map light use?
The map light bulb is PC175 for the 2013 Cadillac CTS.
What bulb is used for the daytime running light?
The daytime running light bulb is 5201. Because DRL setups can vary, confirm the bulb position and socket style before ordering.
Are the front turn signal bulbs the same on halogen and HID cars?
No. For HID headlights, the front turn signal bulb is listed as 12272NA. For halogen headlights, the front turn signal bulb is listed as 2504 LED. The correct bulb depends on the headlight package on your CTS.