Diode Dynamics
Diode Dynamics 14-19 Cadillac ATS Cadillac ATS LED Sidemarkers (Pair) Smoked
* Images may be a representation and may not reflect the actual product.
Product Details
Features Modern LED replacements compatible with Cadillac CTS (non V) 2014-2019 factory sidemarkers Increased output, with unique styling OEM-grade retroreflector optics Available in red, clear, or smoked lens options Engineered and assembled in USA Overview Upgraded Styling. If you're looking to give your vehicle an upgrade in styling and appearance, this is the perfect way to do it! These replacement units are loaded with hundreds of LEDs, for a modern and unique appearance. With the full LED array, they illuminate brighter than factory as well! Choose from three lens color options to match your vehicle or preference. OEM Grade. Unlike other sidemarkers on the market, Diode Dynamics lamps use OEM-grade retroreflector optics, which provide required the reflective safety and a clean, premium appearance when off, unlike diffuser or plain flat lenses without any reflective features. The units themselves are designed directly from OEM CAD data for a perfect fit, and the connector plugs right into the factory socket. Reliability. These LEDs are designed with newer constant-current circuitry and transient voltage protection. These features, found in factory-installed lighting components, protect the circuit over time, ensuring years of flicker-free performance.
FeaturesModern LED replacements compatible with Cadillac CTS (non V) 2014-2019 factory sidemarkersIncreased output with unique stylingOEM-grade retroreflector opticsAvailable in red clear or smoked lens optionsEngineered and assembled in USAOverviewUpgraded Styling. If you're looking to give your vehicle an upgrade in styling and appearance this is the perfect way to do it! These replacement units are loaded with hundreds of LEDs for a modern and unique appearance. With the full LED array they illuminate brighter than factory as well! Choose from three lens color options to match your vehicle or preference.OEM Grade. Unlike other sidemarkers on the market Diode Dynamics lamps use OEM-grade retroreflector optics which provide required the reflective safety and a clean premium appearance when off unlike diffuser or plain flat lenses without any reflective features. The units themselves are designed directly from OEM CAD data for a perfect fit and the connector plugs right into the factory socket.Reliability. These LEDs are designed with newer constant-current circuitry and transient voltage protection. These features found in factory-installed lighting components protect the circuit over time ensuring years of flicker-free performance.
Modern LED replacement for your factory lamp. Plug-and-play installation no modification needed. OEM fit-and-finish. OEM-grade retroreflector optics. Engineered and assembled in USA.
Diode Dynamics 14-19 Cadillac ATS Cadillac ATS LED Sidemarkers (Pair) Smoked
Included Quantity: Pair (Left and Right Side)
Direct replacement for your factory lamp.
Multi-Purpose Light Bulb
Diode Dynamics Lamps
Lamps
Vehicle Fitment
Please verify year, make, model, and any notes before ordering.
- 2014-2019Cadillac ATS
Product Specs
- Brand
- Diode Dynamics
- Part Number
- dd5066
- Catalog Number
- 001798829
- Product Line
- Side Marker Light Assembly
- Category
- Lights
- Type
- Light Accessories and Wiring
- UPC / Barcode
- 691026115979
- Vendor Product Category
- Lights
- Vendor Product Subcategory
- Light Accessories and Wiring
- Box Length
- 9.00 in
- Box Width
- 6.00 in
- Box Height
- 4.00 in
- Ship Weight
- 0.66 lb
- Units Per SKU
- 1
- Freight / LTL
- No
- Air Restricted
- No
- Prop 65
- Y
- CARB Approved
- Yes
- Clearance Item
- No
Shipping & Availability
This item is showing manufacturer availability and may ship directly from the manufacturer. Tracking details are provided as soon as they become available. ETA 0-10 Days to ship.
PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Inventory shown: 3 available as of 7/22/2026.
Manufacturer warranty and return policy details will display here when available. Please refer to the manufacturers website for warranty information.
Reviews & Questions
Real product feedback when available, plus quick ways to get fitment or product help.
Other Popular Parts

Diode Dynamics is a manufacturer of automotive LED lighting products. Founded in 2006, we focus on the development of unique products, incorporating the latest LED and optical technology.
By directly manufacturing many of our products in St. Louis, Missouri, we are able to carefully control quality, while bringing unique items to market faster than the competition. We back our products with an industry-leading no-hassle warranty, and the best service and support experience possible.
Whether it's replacement LED bulbs, full LED assemblies, multicolor accents, or unique lighting control modules, Diode Dynamics is the leader in specialty LED lighting.
Based in St. Louis, Missouri, Diode Dynamics is a manufacturer of premium LED lighting products. As a leader in specialty LED lighting, its focus is on producing full LED assemblies, replacement LED bulbs, multicolor accents, and unique lighting control modules.Paul McCain started Diode Dynamics in 2006 out of his home garage. Careful quality control and premier customer service quickly led to years of Diode Dynamics' successful expansion in the market. Now Paul and his ever-growing team of over 80 people produce 2600+ unique parts annually in a 70,000 Sq Ft manufacturing facility. Diode Dynamics' goal is to become a world-class operation through its core values: Move Together, Act with Integrity, Strive for Excellence, Serve Others, and Keep Growing.
Review our return, cancellation, shipping, warranty, and product image policies before ordering.
Contact us with questions before ordering
California Residents: Prop 65 WARNING: This product MAY contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov
California Residents: TIRE WARNING: LMPerformance will not ship Tires to California.
Legal: Some or all of these parts may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. Buyer takes all responsibility to ensure that any modifications or upgrades that have done conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. LMPerformance is not responsible for buyer not complying with Federal, State, Province, and/or Local laws, ordinances, and regulations. This policy shall be in force for all past, current, and future purchases from LMPerformance, Inc. LMPerformance will not ship ANY non-CARB compliant products to California where California requires products to be CARB certified such as Catalytic Converters and Induction Kits.
Free Shipping: Please note FREE Shipping refers to shipping within the contiguous continental US only. All other locations extra. Some items that require Truck Freight Delivery will require a Truck Freight surcharge. This surcharge is still a discounted shipping amount that is lower then the actual truck freight shipping charge that is charged to LMP. LMP will try to still give the lowest price possible for truck freight items.
Images: Images may be a representation and may not reflect the actual product. Examples would be SPEC stage 3 clutch kits which all use the same photo.
TYPOS: LMPerformance tries to present the best most accurate information on our website. Sometimes we get mistakes in product information sent from vendors such as typos. We can not be responsible for these typos, if you see something that does not look right please let us know before ordering so we can double check for you first. LMPerformance will not pay for typos in any way, monetarily or otherwise.
Price Errors: In the event that a product has mistakenly been listed at an incorrect price, We reserve the right to refuse or cancel any orders placed for product listed at the incorrect price. We reserve the right to refuse or cancel any such orders whether or not the order has been confirmed and your account charged. If your payment type has already been charged for the purchase and your order is cancelled, a full refund to your orignial payment method in the amount of the incorrect price will be issued.
Special Order ITEMS: Some items are Special Ordered and may not be returnable, or even cancellable as they are going into production specifically because you ordered them. Special Ordered items can have a 5-35% cancelation fee.
Cancellations: Instock orders cannot be canceled due to our automated ordering & fast shipping system. To keep our prices low, all cancelations are subject to a 5% cancelation fee to cover transaction processing fees. We reserve the right to charge up to a 10% cancellation fee for cancelled orders due to merchant fees, Special Order fees and the cost of processing and shipping orders.When you request a cancellation of an order or a part, please note that it may take time for a manufacturer to cancel an order if the order is drop-shipped. We also have to confirm that the product has not shipped. If the product has shipped then this must be processed as a return.Also note that sometimes products ship more quickly than expected, so we recommend that you do not purchase alternative products until receiving final confirmation of the cancellation.
Returns: We cannot accept returns on parts that have been used or installed. No returns will be accepted after 30 days. All Returns must be in original packaging. Prior authorization must be given before any return can be made. Up to a 25% Restocking Fee may apply. Special Orders may be subject to Additional Manufacturer Restock Fees as well. Shipping cost will not be refunded.Hoods as well as PCM Programmers may not be returned unless defective and only for replacement. ALL returns must be first filed using our online form found here: https://www.lmperformance.com/returns.
Lost Order Claims All lost order/package claims must be made within 5 days of the shipping date or tracking information delivery date. All claimes made after this date will not be accepted due to Shipping companies policies of filing loss claims.
Damaged Items or Incorrect Items: Please contact us right away if your item has been damaged in shipping or are incorrect. Please note that we will ship replacement items the same method of shipping the order was originally placed for. LMPerformance can not ship packages overnight at our cost if the original shipping was not also overnight. Claims must be filed in order for replacement parts to be shipped.
Warranties:Any warranty claims must be placed with the manufacturer. All of the products sold by LMPerformance, regardless of the manufacturer, are designed for Racing and Performance applications. Many of our manufacturers offer NO WARRANTY on their products, either stated or implied, due to the unusual stresses placed on the parts and because we have no control over how they are installed and used. Many of these products are designed for off-road use only and are not legal for use on public highways. If you have a question about the warranty on a specific product, please e-mail or call us. Buyer assumes all risk and liability associated with these products.
Installation: We are not responsible for or any costs associated with the installation or the improper installation of any products. Purchaser assumes the risk associated with the installation of products. We, along with the manufacturer of each product are not responsible for any direct or indirect damage to the vehicle, personal, or costs incurred from the use of products.























