2003 Chevrolet Trailblazer Lighting Switches, Sensors and Relays

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Keep Your 2003 Chevrolet Trailblazer in Top Shape with Quality Lighting Switches, Sensors and Relays

Whether you’re repairing or upgrading your Lighting Switches, Sensors and Relay, using high-quality parts is key to keeping your 2003 Chevrolet Trailblazer looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Headlight Delay Relay, Headlight Relays, and Headlight Switches. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Lighting Switches, Sensors and Relays from Trusted Brands

Looking for a reliable Lighting Switches, Sensors and Relay? We’ve got you covered with options from brands you know and trust like Carquest. For example, Carquest Lighting Switches, Sensors and Relays start at just $11.49 with an average 4.4 star rating. With over 12 reviews and a solid 4.5 star average, you can shop with confidence knowing other Chevrolet Trailblazer owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2003 Chevrolet Trailblazer Lighting Switches, Sensors and Relay at Advance Auto Parts is around $73.22, with a range that starts at $5.55 and goes up to $149.99. With 9 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Carquest Multi-Purpose Relay, 83A1007, Carquest Multi-Purpose Relay, RAA1732, and Dorman Headlight and Cooling Fan Relay, 601-218 start at just $41.49 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Lighting Switches, Sensors and Relay, don’t forget to check out other key components like Exterior Lighting and Headlights. At Advance Auto Parts, we’re here to help you keep your 2003 Chevrolet Trailblazer in peak condition, inside and out.

Essential 2003 Chevrolet Trailblazer Lighting Switches, Sensors and Relays

Carquest Premium – Carquest Multi-Use Connector, PTA2354 (Part No.PTA2354)

Carquest Multi-Use Connector, PTA2354

from

$114.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
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Carquest – Carquest Electrical Connector, PT255 (Part No.PT255)

Carquest Electrical Connector, PT255

from

$11.49
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.
See More

Carquest Premium – Carquest Multi-Use Connector, PTA1015 (Part No.PTA1015)

Carquest Multi-Use Connector, PTA1015

from

$23.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
See More

Carquest Premium – Carquest Multi-Purpose Relay, RAA1732 (Part No.RAA1732)

Carquest Multi-Purpose Relay, RAA1732

from

$42.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
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Dorman – Dorman Headlight and Cooling Fan Relay, 601-218 (Part No.601-218)

Dorman Headlight and Cooling Fan Relay, 601-218

from

$59.99
This replacement headlight relay restores proper energy flow between the headlight control switch and the headlights. This part that matches the fit and function of the original relay.
See More

Carquest – Carquest Multi-Purpose Relay, 83A1007 (Part No.83A1007)

Carquest Multi-Purpose Relay, 83A1007

from

$41.49
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
See More

Carquest Premium – Carquest Multi-Use Connector, PTA2047 (Part No.PTA2047)

Carquest Multi-Use Connector, PTA2047

from

$146.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
See More

Carquest Premium – Carquest Dimmer Switch, SAC3785 (Part No.SAC3785)

Carquest Dimmer Switch, SAC3785

from

$149.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Headlight Switch allows drivers to easily control the vehicle’s lighting system, enhancing visibility and safety by enabling quick adjustments between low beams, high beams, and fog lights as needed for varying driving conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
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Carquest Premium – Carquest Headlight Switch, SAC1307 (Part No.SAC1307)

Carquest Headlight Switch, SAC1307

from

$122.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Headlight Switch allows drivers to easily control the vehicle’s lighting system, enhancing visibility and safety by enabling quick adjustments between low beams, high beams, and fog lights as needed for varying driving conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
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ACDelco – ACDelco 8-Way Female Black Multi-Purpose Pigtail, PT265 (Part No.PT265)

ACDelco 8-Way Female Black Multi-Purpose Pigtail, PT265

from

$72.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
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Most Popular Headlight Delay Relay for 2003 Chevrolet Trailblazers

Enhance your 2003 Chevrolet Trailblazer with this popular Headlight Delay Relay we have in stock, for $42.99.

Carquest Premium – Carquest Multi-Purpose Relay, RAA1732 (Part No.RAA1732)

Carquest Multi-Purpose Relay, RAA1732

from

$42.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
See More

Best-Selling 2003 Chevrolet Trailblazer Headlight Relays

Upgrade your Trailblazer with one of our 2 best-selling Headlight Relays.

Carquest – Carquest Multi-Purpose Relay, 83A1007 (Part No.83A1007)

Carquest Multi-Purpose Relay, 83A1007

from

$41.49
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
See More

Dorman – Dorman Headlight and Cooling Fan Relay, 601-218 (Part No.601-218)

Dorman Headlight and Cooling Fan Relay, 601-218

from

$59.99
This replacement headlight relay restores proper energy flow between the headlight control switch and the headlights. This part that matches the fit and function of the original relay.
See More

Top-Quality Headlight Switches for 2003 Chevrolet Trailblazers

Choose a high-quality OEM or aftermarket Headlight Switch for Chevrolet Trailblazers and enjoy top-notch performance from $149.99.

Carquest Premium – Carquest Dimmer Switch, SAC3785 (Part No.SAC3785)

Carquest Dimmer Switch, SAC3785

from

$149.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Headlight Switch allows drivers to easily control the vehicle’s lighting system, enhancing visibility and safety by enabling quick adjustments between low beams, high beams, and fog lights as needed for varying driving conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
See More

Top Picks for 2003 Chevrolet Trailblazer Headlight High and Low Beam Lamp Connectors

Invest in one of our 2 durable Headlight High and Low Beam Lamp Connectors for your 2003 Chevrolet, knowing you’re getting trusted brands and expert craftsmanship.

Carquest – Carquest Electrical Connector, PT255 (Part No.PT255)

Carquest Electrical Connector, PT255

from

$11.49
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.
See More

Carquest Premium – Carquest Multi-Use Connector, PTA1015 (Part No.PTA1015)

Carquest Multi-Use Connector, PTA1015

from

$23.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
See More

Our Headlight Switch Connectors for 2003 Chevrolet Trailblazers

Make a smart move for your 2003 Chevrolet Trailblazer with our Headlight Switch Connector for $146.99.

Carquest Premium – Carquest Multi-Use Connector, PTA2047 (Part No.PTA2047)

Carquest Multi-Use Connector, PTA2047

from

$146.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
See More

Top-Rated Lighting Switches, Sensors and Relay Brands For Your 2003 Chevrolet Trailblazer

When it comes to finding the perfect Lighting Switches, Sensors and Relay for your 2003 Chevrolet Trailblazer, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Lighting Switches, Sensors and Relay brands including Carquest, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $11.49. Purchasing a Lighting Switches, Sensors and Relay from us here at Advance Auto Parts is a smart move for both you and your 2003 Chevrolet Trailblazer, providing peace of mind with parts that meet or exceed OEM standards.

Popular Carquest 2003 Chevrolet Trailblazer Lighting Switches, Sensors and Relays

If you’re looking for a top-quality Lighting Switches, Sensors and Relay for your 2003 Chevrolet Trailblazer, Advance Auto Parts has exactly what you need with our selection of Carquest Lighting Switches, Sensors and Relays. We have 1 Carquest Lighting Switches, Sensors and Relays in stock for this fitment, all known for their durability and precision fit. With prices starting at just $11.49, you’ll find the perfect Lighting Switches, Sensors and Relay for your needs and budget. Carquest Lighting Switches, Sensors and Relays for the 2003 Chevrolet Trailblazer come highly rated, with over 6 customer reviews and an impressive average rating of 4.4 stars. Choosing a Carquest Lighting Switches, Sensors and Relay from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Carquest Electrical Connector, PT255
from $5.55
(6)
Carquest Electrical Connector, PT255
“Works”

FAQs for 2003 Chevrolet Trailblazer Lighting Switches, Sensors and Relays

What are the best-selling Lighting Switches, Sensors and Relays for 2003 Chevrolet Trailblazers?

Out of 9 Lighting Switches, Sensors and Relays that fit 2003 Chevrolet Trailblazers, the following parts are the top sellers:

What’s the price range for 2003 Chevrolet Trailblazer Lighting Switches, Sensors and Relays?

The prices of Lighting Switches, Sensors and Relays for the 2003 Chevrolet Trailblazer range from $5.55 up to $149.99 for the most premium parts.

What is the average price of a Lighting Switches, Sensors and Relay for a 2003 Chevrolet Trailblazer?

The average price for Lighting Switches, Sensors and Relays for the 2003 Chevrolet Trailblazer is $73.22. Keep in mind the variety of part types within our Lighting Switches, Sensors and Relay category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Lighting Switches, Sensors and Relays for other Chevrolet Trailblazer model years?

Yes, we carry Lighting Switches, Sensors and Relays for 6 model years of Chevrolet Trailblazers between 2002 and 2009. The following model years are the most popular for Lighting Switches, Sensors and Relay purchases: 2009, 2008, 2007, 2006, 2005, 2004, and 2002.

What are the cheapest Lighting Switches, Sensors and Relays for my 2003 Chevrolet Trailblazer?

The cheapest 2003 Chevrolet Trailblazer Lighting Switches, Sensors and Relays we carry are:

Does Advance Auto Parts sell Lighting Switches, Sensors and Relays for any other 2003 Chevrolet models?

What are the top-rated Lighting Switches, Sensors and Relays that fit the 2003 Chevrolet Trailblazer?

The one 2003 Chevrolet Trailblazer Lighting Switches, Sensors and Relay we have in stock is the Carquest Electrical Connector, PT255. It is rated 4.5 stars and costs $11.49.

What types of Lighting Switches, Sensors and Relays do you sell for my 2003 Chevrolet Trailblazer?

As of 8/2/26, these are some of the most in-demand types of Lighting Switches, Sensors and Relays for a 2003 Chevrolet Trailblazer:

Can I get help with 2003 Chevrolet Trailblazer Lighting Switches, Sensors and Relay orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Chevrolet Lighting Switches, Sensors and Relays and more.

What is your return policy for Chevrolet Trailblazer Lighting Switches, Sensors and Relays?

Advance Auto Parts keeps returns simple. For new Chevrolet Trailblazer Lighting Switches, Sensors and Relays and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.