Cadillac CTS 2003 Bulb Size

Bulb size chart

9005XS Bulbs

Used for: Headlight Bulb High Beam

View all 10 replacement options for size 9005XS →

9006XS Bulbs

Used for: Headlight Bulb Low Beam(with halogen headlights)

Philips Automotive Lighting 9006XS Headlight Bulb

Philips Automotive Lighting 9006XS Headlight Bulb

Introducing Philips CrystalVision Platinum Upgrade Headlight Bulbs: Sharp, Irresistible Look: Enhance your vehicle's appearance with a sharp and irresistible aesthetic. Ultra-White Gradient Coating: Patented technology creates up to 4000 K white light for a stylish look. Up to 60% More Vision: Enjoy safer driving with up to 60% more vision compared to standard halogen bulbs. DOT Compliant: These bulbs meet DOT safety regulations. Cool White Light: Enhance contrast and reduce eye fatigue with cool white light. Matte Silver Tip: The bulbs feature a matte silver tip for an elegant look in the reflector.

Buy on Amazon →

SYLVANIA - 9006XS (HB4A) SilverStar zXe High Performance Halogen Headlight Bulb

SYLVANIA - 9006XS (HB4A) SilverStar zXe High Performance ...

Newest Halogen Bulbs: SYLVANIA SilverStar zXe headlights are the latest addition to the halogen bulb market. Whitest Light: Looking for the whitest and most stylized light for your vehicle? SilverStar zXe headlights offer the whitest light in the SilverStar high-performance series. Style and Performance: Experience both style and performance in a single package with SilverStar zXe headlights. The headlights feature a cobalt blue coating that ensures optimal light transmission and color. Xenon Halogen Gas Technology: Built with proprietary Xenon halogen gas technology for improved performance. Silver Mirror Top Alloy Coating: The jewel-like appearance of the headlights is completed with a silver mirror top alloy coating. HID-like Look and Feel: Enjoy the look, feel, and attitude of HID (High-Intensity Discharge) lights with these SilverStar zXe bulbs.

Buy on Amazon →

View all 11 replacement options for size 9006XS →

D1S Bulbs

Used for: Headlight Bulb Low Beam(with HID headlights)

View all 11 replacement options for size D1S →

3157 Bulbs

Used for: Back Up Reverse Light Bulb, Daytime Running Light Bulb, Turn Signal Light Bulb Front Inner, Turn Signal Light Bulb Rear

Alla Lighting 3157 Red LED Bulbs (Brake, Tail Lights, Turn Signal)

Alla Lighting 3157 Red LED Bulbs (Brake, Tail Lights, Tur...

Product benefits and features: Each bulb is quipped with 39pcs high power and high illumination 2835 SMD LEDs; Built-in smart IC driver for stable current control and longer lifespan; Equipped with projector-lens for fully 360° light output. Equipped with aluminum heat sink for the best heat dissipation. Especially designed for replacing back-up reverse lights, turn signal lights, brake tail lights, daytime running lights(DRL) lamps.

Buy on Amazon →

KAKEMONO 3157 LED Amber Yellow Light Bulb

KAKEMONO 3157 LED Amber Yellow Light Bulb

Improve your car's lighting with the brilliant combination of brightness, energy efficiency, and broad compatibility offered by KAKEMONO BrightBeam 3157 LED Amber Yellow Bulbs. Built for multiple functions, these bulbs perform expertly to promise safety and style in each ride. BrightBeam LED bulbs are good for brake lights, turn signals, reverse lights, tail lights, and much more. Amber yellow in color and with a bright 400 lumens output, it gives better visibility and makes your vehicle more noticeable to others to improve safety on the road. Replacing traditional 40W halogen bulbs, these 4W LED bulbs reduce power consumption by a large margin while keeping very good brightness. Ceramic and aluminum housing allows for efficient heat dissipation, contributing to a longer lifespan and consistent performance over time. With a wide voltage input range of AC10-18V/DC10-30V, they are stable and work well on different vehicle models. They boast a 360° beam angle with no dark spots, providing super uniform light distribution. Plug-and-play installation, besides, makes upgrading your lighting a breeze. Note that some vehicles may require a load resistor to prevent hyper-flashing or dashboard error codes.

Buy on Amazon →

View all 12 replacement options for size 3157 →

3157R Bulbs

Used for: Brake Light Bulb, Tail Light Bulb

View all 13 replacement options for size 3157R →

PC175 Bulbs

Used for: Center High Mount Stop Light Bulb, Dome Light Bulb, Map Light Bulb

View all 10 replacement options for size PC175 →

2825 Bulbs

Used for: License Plate Light Bulb, Parking Light Bulb, Side Marker Light Bulb Rear, Turn Signal Light Bulb Front Outer

View all 12 replacement options for size 2825 →

98 Bulbs

Used for: License Plate Light Bulb, Parking Light Bulb, Side Marker Light Bulb Rear, Turn Signal Light Bulb Front Outer

View all 10 replacement options for size 98 →

194NA Bulbs

Used for: Side Marker Light Bulb Front

Marsauto 194 LED Light Bulbs Amber Yellow

Marsauto 194 LED Light Bulbs Amber Yellow

Introducing the Marsauto 194 LED Light Bulbs in Amber Yellow, the perfect lighting solution for your car's various applications. With their impressive brightness and ease of installation, these bulbs will stay with you all the time, providing enhanced visibility and style.Experience a super bright light output with the Marsauto 194 LED Light Bulbs. With 200 lumens of brightness, these bulbs ensure excellent visibility in a variety of applications. Whether you need them for map lights, dome lights, license plate lights, dashboard instruments, trunk lights, or courtesy lights, these bulbs will illuminate your vehicle with a vibrant amber yellow glow. Installation is a breeze with the Marsauto 194 LED Light Bulbs. With their user-friendly design, you can easily install them in just 3 minutes. Simply remove your old bulbs and replace them with the Marsauto LEDs for an instant upgrade. There's no need for complex wiring or modifications – it's a hassle-free process that anyone can do. The Marsauto 194 LED Light Bulbs will stay with you all the time, providing reliable and long-lasting performance. Whether you're driving during the day or night, these bulbs will consistently deliver the illumination you need. You can count on them to enhance your visibility and add a touch of style to your vehicle's interior and exterior lighting. Upgrade your car's lighting system with the Marsauto 194 LED Light Bulbs in Amber Yellow and enjoy enhanced brightness, easy installation, and versatile applications. With their super bright light output, quick installation, and compatibility with various car lighting functions, these bulbs are the perfect choice for improving your driving experience. Trust Marsauto for high-quality lighting solutions that will exceed your expectations.

Buy on Amazon →

Alla Lightning 194NA LED Amber Bulbs

Alla Lightning 194NA LED Amber Bulbs

Each bulb is quipped with 18pcs high power and high illumination 3014 SMD LEDs; Built-in smart IC driver for stable current control and longer lifespan; Each bulb is about 240 lumens, fully 360° light output. More than 400% brighter than stock lamps. Equipped with aluminum heat sink for the best heat dissipation. Especially designed for license plate lights, side marker lights, parking lights, interior map, dome, trunk, door courtesy, stepwell lights lamps.

Buy on Amazon →

View all 12 replacement options for size 194NA →

564 Bulbs

Used for: Courtesy Light Bulb

Ruiandsion 564 LED Festoon Bulbs

Ruiandsion 564 LED Festoon Bulbs

Dive into the world of the Ruiandsion 564 LED Festoon Bulbs. These aren't your average bulbs. While many might heat up faster than a hotplate, these keep their cool, ensuring they last longer without getting hot-headed. And talk about installation: it's so straightforward, you'd think you were popping the lid off a jam jar – mere minutes without the need for a toolkit or a call to the mechanic. But let's delve a tad deeper. They’re modelled as a 44mm LED Car Dome Light, emitting a pristine, UFO-esque white. With a robust DC 24V and a luminous 480lm, they promise both efficiency and power. Consuming a mere 2.64W, they're the epitome of performance meets efficiency. And the pièce de résistance? Those 24 pieces of 2835 SMD Chips in each lamp, offering a magnificent 360-degree glow that ensures every nook and cranny is bathed in light.

Buy on Amazon →

Wiseshine 564 Festoon LED Light Bulb

Wiseshine 564 Festoon LED Light Bulb

Imagine a bulb, not just any bulb, but one that transforms the innards of your car from a gloomy cave into a splendidly lit ballroom. That's right, whether it's the dome, the map reader, the glove box, the trunk, or even the license plate, this little marvel ensures every bit of your car's insides glows with a radiance reminiscent of a starlit night. It’s not merely a light bulb; it’s a tour de force in automotive illumination. Now, the nitty-gritty: It's fitted with 3 super-bright 5050 1.5watt LED chipsets. Each chipset is like a mini sun, emitting a staggering 180-200 lumens. But it’s not just about brute force brightness; there's a method to this luminous madness. Beneath its sleek exterior lies a thick copper Aluminium Base Board. A bit like giving a marathon runner the best shoes; this ensures the bulb keeps running and running, potentially ticking past the 50,000-hour mark.

Buy on Amazon →

View all 11 replacement options for size 564 →

211-2 Bulbs

Used for: Trunk or Cargo Area Light

KATUR 211-2 Festoon C5W LED Light Bulb

KATUR 211-2 Festoon C5W LED Light Bulb

Enjoy the benefits of lower power consumption and long-lasting performance with the KATUR 211-2 Festoon C5W LED Light Bulb. This energy-efficient bulb not only reduces your vehicle's power usage but also ensures a longer lifespan, saving you money on replacements and maintenance costs. Experience peace of mind knowing that this bulb is safe to use and designed to provide reliable and consistent lighting. Every LED Series product from KATUR comes in a static sealed bag, ensuring long-term preservation and protection. This packaging solution guarantees that your bulb remains in pristine condition until it's ready to be installed. Experience the convenience of having a high-quality bulb at your fingertips whenever you need it. Prepare to be amazed by the super brightness of the KATUR 211-2 Festoon C5W LED Light Bulb. Equipped with high-power 3014 chips, this bulb emits a powerful and intense light output that will instantly refresh the look of your car. The 180-degree illumination angle ensures a wide coverage area, eliminating any blind spots and providing a well-lit environment. Say goodbye to outdated and dim lighting, and embrace the renewed new look that the KATUR 211-2 Festoon C5W LED Light Bulb brings to your vehicle. Whether you're upgrading your interior or exterior lighting, this bulb is designed to deliver outstanding brightness and clarity. Enhance your visibility on the road and turn heads with the vibrant illumination that this bulb provides.

Buy on Amazon →

Ruiandsion LED Festoon Bulbs 211-2

Ruiandsion LED Festoon Bulbs 211-2

Experience a cool and comfortable lighting experience with the Ruiandsion LED Festoon Bulbs 211-2. Thanks to its low working temperature and superior heat dissipation capabilities, this bulb ensures optimal performance and longevity. Say goodbye to overheating issues and enjoy a reliable and efficient lighting solution. Installing the Ruiandsion LED Festoon Bulbs 211-2 is a breeze and can be done in just minutes, without the need for any tools. Simply plug and play, and you'll have brilliant illumination in no time. Upgrade your vehicle's lighting system effortlessly and enjoy the convenience of hassle-free installation. Equipped with high-quality 3528 SMD chips, this bulb features 16 pieces of powerful LED chipset per lamp, ensuring a much brighter output compared to the original bulbs. The aluminum body design enhances heat dissipation, further improving the bulb's performance and longevity. With its 360-degree lighting angle, the Ruiandsion LED Festoon Bulbs 211-2 provide comprehensive illumination, eliminating any dark spots and ensuring a uniform lighting experience. Enjoy a well-lit environment that enhances visibility and adds a touch of elegance to your vehicle's interior. Prepare to enjoy long-lasting performance with a service life of up to 50,000 hours. The Ruiandsion LED Festoon Bulbs 211-2 are built to last, offering you reliable and consistent lighting for countless journeys. Experience peace of mind knowing that these bulbs will illuminate your vehicle for years to come.

Buy on Amazon →

View all 12 replacement options for size 211-2 →

This 2003 Cadillac CTS bulb size guide helps you verify the correct bulb by lighting position, so you can replace a failed lamp with the right fit the first time. Whether you are working on the headlights, tail lamps, interior lights, or small exterior markers, this page organizes the bulb chart by location for easier lookup.

The 2003 Cadillac CTS used different bulb types depending on the light position, and some setups can vary by trim, market, or lighting package. Use this page to match the bulb to the exact spot on the car, such as low beam, high beam, brake light, parking light, or dome light, before you buy replacements.

Fitment can vary on the 2003 Cadillac CTS, especially between halogen and HID headlight setups and between different trim or package combinations. If your car has halogen low beams, the listed bulb is 9006XS, while HID-equipped cars use D1S for low beam; the high beam uses 9005XS. LED upgrades and aftermarket conversion kits may fit physically but still need to match the housing, connector, and beam pattern, so it is smart to compare the installed bulb before ordering. For the best result, remove the old bulb and confirm the number printed on it, since that is the most reliable way to avoid a mismatch.

FAQ

What is the low beam bulb for a 2003 Cadillac CTS?

The low beam bulb depends on the headlight system. A 2003 Cadillac CTS with HID headlights uses D1S low beam bulbs, while a CTS with halogen headlights uses 9006XS low beam bulbs.

What bulb does the high beam use on the 2003 Cadillac CTS?

The high beam bulb is 9005XS on the 2003 Cadillac CTS.

Which bulb fits the brake light on this CTS?

The brake light bulb listed for the 2003 Cadillac CTS is 3157R.

Are the tail light and brake light bulbs the same?

Yes, the bulb chart lists 3157R for both the tail light and brake light positions on this model year.

What bulb is used for the daytime running light?

The daytime running light bulb for the 2003 Cadillac CTS is 3157.

What is the rear turn signal bulb size?

The rear turn signal light bulb is 3157 on the 2003 Cadillac CTS.

What bulb fits the front outer turn signal?

The front outer turn signal light bulb is 2825, 98.

What bulb is used for the front inner turn signal?

The front inner turn signal light bulb is 3157.

What is the side marker bulb size on the front of the car?

The front side marker light bulb is 194NA.

What bulb fits the license plate lights?

The license plate light bulb is 2825, 98 on the 2003 Cadillac CTS.

What bulb is used for the parking lights?

The parking light bulb is 2825, 98.

What bulb fits the reverse lights?

The back up reverse light bulb is 3157.

What is the center high mount stop light bulb?

The center high mount stop light bulb is PC175.

Which bulb is used for the dome light and map light?

Both the dome light and map light use PC175 bulbs on this vehicle.

What bulb fits the trunk or cargo area light?

The trunk or cargo area light uses a 211-2 bulb.

What bulb is listed for the courtesy light?

The courtesy light bulb is 564.

Can trim or lighting package changes affect bulb fitment?

Yes. Trim, market, and lighting package differences can change the exact bulb setup, especially for headlights and some exterior lamps, so it is important to verify the installed bulb and the lighting configuration on your specific CTS.

Cadillac CTS Bulb Size by Year