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Standard Ignition SLS-303 Brake Light SwitchOE Quality 60-Day Returns
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Part #: SLS-303

Standard Ignition SLS-303 Brake Light Switch

⚙️ 232 vehicles fit this part
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, Saab, Isuzu, Buick, Hummer, Cadillac, and Oldsmobile, Trailblazer, Traverse, Envoy, 9-7x, Ascender, Rainier, Express 1500, Express 2500, Express 3500, Silverado 1500 Classic, Silverado 1500 HD Classic, Silverado 2500 HD Classic, Silverado 3500 Classic, Savana 1500, Savana 2500, Savana 3500, Sierra 1500 Classic, Sierra 2500 HD Classic, H2, Escalade, Escalade ESV, Escalade EXT, Avalanche 1500, Avalanche 2500, Silverado 1500, Silverado 1500 HD, Silverado 2500 HD, Silverado 3500, SSR, Suburban 1500, Suburban 2500, Tahoe, Trailblazer EXT, Envoy XL, Sierra 1500, Sierra 1500 HD, Sierra 2500 HD, Sierra 3500, Yukon, Yukon XL 1500, Yukon XL 2500, Envoy XUV, Silverado 2500, Sierra 2500, and Bravada
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Reliable Brake Light Switch for GM and Related Vehicles

The Standard Ignition SLS-303 brake light switch is designed to provide consistent stoplight activation for a range of General Motors and related makes. Engineered with durable plastic housing and precise blade terminals, this switch ensures dependable electrical connection and long-lasting performance.

  • Compatible with Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, and Saab models
  • Features a cream and gray plastic finish for corrosion resistance
  • Equipped with one female connector and six male blade terminals
  • Functions as a stoplight switch to activate brake lights
  • Part number SLS-303 for easy identification and replacement

Product Details and Specifications

The SLS-303 brake light switch from Standard Ignition is constructed with a plastic finish in cream and gray colors, providing durability and resistance to environmental factors. It includes a single female connector designed to interface with the vehicle's wiring harness and six male blade terminals that ensure secure electrical contact. This brake light switch is specifically engineered to activate the stoplight circuit when the brake pedal is pressed, maintaining safety and compliance with vehicle lighting requirements.

Compatible Vehicles and Applications

This brake light switch is compatible with a wide range of vehicles including Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, and Saab. It fits models such as the Chevrolet Silverado 1500, GMC Sierra 2500 HD, Cadillac Escalade, Hummer H2, Isuzu Ascender, and Saab 9-7x among others. The SLS-303 is suitable for use in trucks, SUVs, and passenger vehicles requiring a reliable stoplight switch.

Common Issues Addressed by the SLS-303 Brake Light Switch

  • Brake lights not illuminating when the pedal is pressed
  • Intermittent or flickering brake light operation
  • Failure of cruise control disengagement linked to brake switch
  • Electrical connection problems due to worn or damaged terminals
  • Brake light warning indicators on the dashboard

Installation Notes and Tips

When installing the Standard Ignition SLS-303 brake light switch, ensure the vehicle is turned off and the battery is disconnected to prevent electrical shorts. Verify the correct alignment of the switch with the brake pedal mechanism. Connect the female connector securely and confirm that all six male blade terminals are properly seated. After installation, test the brake lights for proper operation before driving.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications. The SLS-303 brake light switch undergoes rigorous quality control to ensure reliable performance. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship to provide confidence in the product's durability.

BrandStandard Ignition
Part NumberSLS-303
ColorCream, Gray
Connector GenderFemale
FinishPlastic
FunctionsStoplight Switch
Terminal GenderMale
Terminal TypeBlade

This part fits 232 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2009ChevroletTrailblazerN/A
2009ChevroletTraverse3.6LV6N/A
2009GMCEnvoyN/A
2009Saab9-7xN/A
2008ChevroletTrailblazerN/A
2008GMCEnvoyN/A
2008IsuzuAscender4.2LL6N/A
2008Saab9-7xN/A
2007BuickRainier5.3LV8N/A
2007BuickRainier4.2LL6N/A
2007ChevroletExpress 1500N/A
2007ChevroletExpress 2500N/A
2007ChevroletExpress 3500N/A
2007ChevroletSilverado 1500 ClassicN/A
2007ChevroletSilverado 1500 HD ClassicN/A
2007ChevroletSilverado 2500 HD ClassicN/A
2007ChevroletSilverado 3500 ClassicN/AFits vehicles with fixed pedal setups.
2007ChevroletTrailblazerN/A
2007GMCEnvoyN/A
2007GMCSavana 1500N/A
2007GMCSavana 25006.0LV8N/A
2007GMCSavana 25006.6LV8N/A
2007GMCSavana 25004.8LV8N/A
2007GMCSavana 35004.8LV8N/A
2007GMCSavana 35006.0LV8N/A
2007GMCSavana 35006.6LV8N/A
2007GMCSierra 1500 ClassicN/A
2007GMCSierra 2500 HD ClassicN/A
2007HummerH26.0LV8N/A
2007IsuzuAscender4.2LL6N/A
2007Saab9-7xN/A
2006BuickRainier4.2LL6N/A
2006BuickRainier5.3LV8N/A
2006CadillacEscaladeN/AFits vehicles with fixed pedal setups.
2006CadillacEscalade ESVN/AFits vehicles with fixed pedal setups.
2006CadillacEscalade EXTN/AFits vehicles with fixed pedal setups.
2006ChevroletAvalanche 1500N/AFits vehicles with fixed pedal setups.
2006ChevroletAvalanche 2500N/AFits vehicles with fixed pedal setups.
2006ChevroletExpress 1500N/A
2006ChevroletExpress 2500N/A
2006ChevroletExpress 3500N/A
2006ChevroletSilverado 1500N/AFits vehicles with fixed pedal setups.
2006ChevroletSilverado 1500 HDN/AFits vehicles with fixed pedal setups.
2006ChevroletSilverado 2500 HDN/AFits vehicles with fixed pedal setups.
2006ChevroletSilverado 3500N/AFits vehicles with fixed pedal setups.
2006ChevroletSSRN/A
2006ChevroletSuburban 1500N/AFits vehicles with fixed pedal setups.
2006ChevroletSuburban 2500N/AFits vehicles with fixed pedal setups.
2006ChevroletTahoeN/AFits vehicles with fixed pedal setups.
2006ChevroletTrailblazerN/A
2006ChevroletTrailblazer EXTN/A
2006GMCEnvoyN/A
2006GMCEnvoy XLN/A
2006GMCSavana 1500N/A
2006GMCSavana 2500N/A
2006GMCSavana 3500N/A
2006GMCSierra 1500N/AFits vehicles with fixed pedal setups.
2006GMCSierra 1500 HDN/AFits vehicles with fixed pedal setups.
2006GMCSierra 2500 HDN/AFits vehicles with fixed pedal setups.
2006GMCSierra 3500N/AFits vehicles with fixed pedal setups.
2006GMCYukonN/AFits vehicles with fixed pedal setups.
2006GMCYukon XL 1500DenaliN/AFits vehicles with fixed pedal setups.
2006GMCYukon XL 2500N/AFits vehicles with fixed pedal setups.
2006HummerH26.0LV8N/A
2006IsuzuAscender4.2LL6N/A
2006IsuzuAscender5.3LV8N/A
2006Saab9-7xN/A
2005BuickRainier5.3LV8N/A
2005BuickRainier4.2LL6N/A
2005CadillacEscaladeN/AFits vehicles with fixed pedal setups.
2005CadillacEscalade ESVN/AFits vehicles with fixed pedal setups.
2005CadillacEscalade EXTN/AFits vehicles with fixed pedal setups.
2005ChevroletAvalanche 1500N/AFits vehicles with fixed pedal setups.
2005ChevroletAvalanche 2500N/AFits vehicles with fixed pedal setups.
2005ChevroletExpress 1500N/A
2005ChevroletExpress 2500N/A
2005ChevroletExpress 3500N/A
2005ChevroletSilverado 1500N/AFits vehicles with fixed pedal setups.
2005ChevroletSilverado 1500 HDN/AFits vehicles with fixed pedal setups.
2005ChevroletSilverado 2500 HDN/AFits vehicles with fixed pedal setups.
2005ChevroletSilverado 3500N/AFits vehicles with fixed pedal setups.
2005ChevroletSSRN/A
2005ChevroletSuburban 1500N/AFits vehicles with fixed pedal setups.
2005ChevroletSuburban 2500N/AFits vehicles with fixed pedal setups.
2005ChevroletTahoeN/AFits vehicles with fixed pedal setups.
2005ChevroletTrailblazerN/A
2005ChevroletTrailblazer EXTN/A
2005GMCEnvoyN/A
2005GMCEnvoy XLN/A
2005GMCEnvoy XUVN/A
2005GMCSavana 1500N/A
2005GMCSavana 2500N/A
2005GMCSavana 3500N/A
2005GMCSierra 1500N/AFits vehicles with fixed pedal setups.
2005GMCSierra 1500 HDN/AFits vehicles with fixed pedal setups.
2005GMCSierra 2500 HDN/AFits vehicles with fixed pedal setups.
2005GMCSierra 3500N/AFits vehicles with fixed pedal setups.
2005GMCYukonN/AFits vehicles with fixed pedal setups.
2005GMCYukon XL 1500DenaliN/AFits vehicles with fixed pedal setups.
2005GMCYukon XL 2500N/AFits vehicles with fixed pedal setups.
2005HummerH26.0LV8N/A
2005IsuzuAscender5.3LV8N/A
2005IsuzuAscender4.2LL6N/A
2005Saab9-7xN/A
2004BuickRainier4.2LL6N/A
2004BuickRainier5.3LV8N/A
2004CadillacEscaladeN/AFits vehicles with fixed pedal setups.
2004CadillacEscalade ESVN/AFits vehicles with fixed pedal setups.
2004CadillacEscalade EXTN/AFits vehicles with fixed pedal setups.
2004ChevroletAvalanche 1500N/AFits vehicles with fixed pedal setups.
2004ChevroletAvalanche 2500N/AFits vehicles with fixed pedal setups.
2004ChevroletExpress 1500N/A
2004ChevroletExpress 2500N/A
2004ChevroletExpress 3500N/A
2004ChevroletSilverado 1500N/AFits vehicles with fixed pedal setups.
2004ChevroletSilverado 2500N/AFits vehicles with fixed pedal setups.
2004ChevroletSilverado 2500 HDN/AFits vehicles with fixed pedal setups.
2004ChevroletSilverado 3500N/AFits vehicles with fixed pedal setups.
2004ChevroletSSRN/A
2004ChevroletSuburban 1500N/AFits vehicles with fixed pedal setups.
2004ChevroletSuburban 2500N/AFits vehicles with fixed pedal setups.
2004ChevroletTahoeN/AFits vehicles with fixed pedal setups.
2004ChevroletTrailblazerN/A
2004ChevroletTrailblazer EXTN/A
2004GMCEnvoyN/A
2004GMCEnvoy XLN/A
2004GMCEnvoy XUVN/A
2004GMCSavana 1500N/A
2004GMCSavana 2500N/A
2004GMCSavana 3500N/A
2004GMCSierra 1500N/AFits vehicles with fixed pedal setups.
2004GMCSierra 2500N/AFits vehicles with fixed pedal setups.
2004GMCSierra 2500 HDN/AFits vehicles with fixed pedal setups.
2004GMCSierra 3500N/AFits vehicles with fixed pedal setups.
2004GMCYukonN/AFits vehicles with fixed pedal setups.
2004GMCYukon XL 1500DenaliN/AFits vehicles with fixed pedal setups.
2004GMCYukon XL 2500N/AFits vehicles with fixed pedal setups.
2004HummerH26.0LV8N/A
2004IsuzuAscender4.2LL6N/A
2004IsuzuAscender5.3LV8N/A
2004OldsmobileBravadaN/A
2003CadillacEscaladeN/AFits vehicles with fixed pedal setups.
2003CadillacEscalade ESVN/AFits vehicles with fixed pedal setups.
2003CadillacEscalade EXTN/AFits vehicles with fixed pedal setups.
2003ChevroletAvalanche 1500N/AFits vehicles with fixed pedal setups.
2003ChevroletAvalanche 2500N/AFits vehicles with fixed pedal setups.
2003ChevroletExpress 1500N/A
2003ChevroletExpress 2500N/A
2003ChevroletExpress 3500N/A
2003ChevroletSilverado 1500N/AFits vehicles with fixed pedal setups.
2003ChevroletSilverado 1500 HDN/AFits vehicles with fixed pedal setups.
2003ChevroletSilverado 2500N/AFits vehicles with fixed pedal setups.
2003ChevroletSilverado 2500 HDN/AFits vehicles with fixed pedal setups.
2003ChevroletSilverado 3500N/AFits vehicles with fixed pedal setups.
2003ChevroletSSRN/A
2003ChevroletSuburban 1500N/AFits vehicles with fixed pedal setups.
2003ChevroletSuburban 2500N/AFits vehicles with fixed pedal setups.
2003ChevroletTahoeN/AFits vehicles with fixed pedal setups.
2003ChevroletTrailblazerN/A
2003ChevroletTrailblazer EXTN/A
2003GMCEnvoyN/A
2003GMCEnvoy XLN/A
2003GMCSavana 1500N/A
2003GMCSavana 2500N/A
2003GMCSavana 3500N/A
2003GMCSierra 1500N/AFits vehicles with fixed pedal setups.
2003GMCSierra 1500 HDN/AFits vehicles with fixed pedal setups.
2003GMCSierra 2500N/AFits vehicles with fixed pedal setups.
2003GMCSierra 2500 HDN/AFits vehicles with fixed pedal setups.
2003GMCSierra 3500N/AFits vehicles with fixed pedal setups.
2003GMCYukonN/AFits vehicles with fixed pedal setups.
2003GMCYukon XL 1500DenaliN/AFits vehicles with fixed pedal setups.
2003GMCYukon XL 2500N/AFits vehicles with fixed pedal setups.
2003HummerH26.0LV8N/A
2003IsuzuAscender4.2LL6N/A
2003IsuzuAscender5.3LV8N/A
2003OldsmobileBravadaN/A
2002CadillacEscaladeN/A
2002CadillacEscalade EXTN/A
2002ChevroletAvalanche 1500N/AFits vehicles with fixed pedal setups.
2002ChevroletAvalanche 2500N/AFits vehicles with fixed pedal setups.
2002ChevroletSilverado 1500N/A
2002ChevroletSilverado 1500 HDN/A
2002ChevroletSilverado 2500N/A
2002ChevroletSilverado 2500 HDN/A
2002ChevroletSilverado 3500N/A
2002ChevroletSuburban 1500N/AFits vehicles with fixed pedal setups.
2002ChevroletSuburban 2500N/AFits vehicles with fixed pedal setups.
2002ChevroletTahoeN/AFits vehicles with fixed pedal setups.
2002ChevroletTrailblazerN/A
2002ChevroletTrailblazer EXTN/A
2002GMCEnvoyN/A
2002GMCEnvoy XLN/A
2002GMCSierra 1500N/A
2002GMCSierra 1500 HDN/A
2002GMCSierra 2500N/A
2002GMCSierra 2500 HDN/A
2002GMCSierra 3500N/A
2002GMCYukonN/AFits vehicles with fixed pedal setups.
2002GMCYukon XL 1500N/AFits vehicles with fixed pedal setups.
2002GMCYukon XL 2500N/AFits vehicles with fixed pedal setups.
2002OldsmobileBravadaN/A
2001ChevroletC1500N/A
2001ChevroletSilverado 1500N/A
2001ChevroletSilverado 1500 HDN/A
2001ChevroletSilverado 2500N/A
2001ChevroletSilverado 2500 HDN/A
2001ChevroletSilverado 35008.1LV8N/A
2001ChevroletSilverado 35006.0LV8N/A
2001ChevroletSilverado 35006.6LV8N/A
2001ChevroletSuburban 1500N/A
2001ChevroletSuburban 2500N/A
2001ChevroletTahoeN/A
2001GMCSierra 1500N/A
2001GMCSierra 1500 HDN/A
2001GMCSierra 2500N/A
2001GMCSierra 2500 HDN/A
2001GMCSierra 3500N/A
2001GMCYukonN/A
2001GMCYukon XL 1500DenaliN/A
2001GMCYukon XL 2500N/A
2000ChevroletSilverado 1500N/A
2000ChevroletSilverado 2500N/A
2000GMCSierra 1500N/A
2000GMCSierra 2500N/A
2000GMCYukonN/A
2000GMCYukon XL 1500N/A
2000GMCYukon XL 2500N/A
1999ChevroletSilverado 1500N/A
1999ChevroletSilverado 2500N/A
1999GMCSierra 1500N/A
1999GMCSierra 2500N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

15038393151288741S513153-544458738DR4106SL2043SL853V51-73-0009

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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