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Standard IgnitionPart #: HLS-1054
Standard Ignition HLS-1054 Instrument Panel Dimmer Switch
⚙️ 70 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$143.10Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
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*Free return shipping only qualifies if our fitment verification tool is used.
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✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, Isuzu, Buick, and Oldsmobile, Trailblazer, Envoy, Ascender, Rainier, Trailblazer EXT, Envoy XL, Envoy XUV, and Bravada
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Instrument Panel Dimmer Switch options
Reliable Instrument Panel Dimmer Switch for Select GM Vehicles
The Standard Ignition HLS-1054 instrument panel dimmer switch is designed to provide consistent headlight control for various GM models. Engineered for direct snap fit attachment, this black plastic switch ensures seamless integration with your vehicle's electrical system.
- Direct, snap fit attachment method for easy installation
- Black plastic finish with durable construction
- Female rectangular connectors with 2-pin configuration
- 18 male blade terminals supporting 12-volt electrical systems
- Compatible with headlight dimmer functions
Product Details and Specifications
The HLS-1054 dimmer switch by Standard Ignition is built to meet the electrical and lighting needs of select Buick, Chevrolet, GMC, Isuzu, and Oldsmobile vehicles. Its black plastic housing offers durability while maintaining a clean appearance on the instrument panel. The switch features two female rectangular connectors and eighteen male blade terminals, designed to handle 12-volt systems commonly found in these vehicles. The direct snap fit attachment method allows for secure mounting without additional hardware, simplifying replacement or upgrade procedures.
Compatible Vehicles and Applications
This instrument panel dimmer switch is compatible with the following makes and models:
- Buick Ascender
- Chevrolet Trailblazer, Trailblazer EXT
- GMC Envoy, Envoy XL, Envoy XUV, Rainier
- Isuzu Ascender, Bravada
- Oldsmobile models requiring a 12V headlight dimmer switch
Common Issues Addressed by This Dimmer Switch
- Intermittent or non-functioning instrument panel lighting
- Inability to adjust headlight brightness levels
- Electrical connection failures due to worn connectors
- Faulty switch causing dashboard light flickering
- Replacement for damaged or broken dimmer switches
Installation Notes and Tips
- Ensure vehicle ignition is off before beginning installation
- Disconnect the battery to prevent electrical shorts
- Remove the old dimmer switch by releasing the snap fit attachment
- Align the new switch’s rectangular female connectors with the vehicle harness
- Press firmly until the switch snaps securely into place
- Test headlight dimmer functionality before reassembling the instrument panel
Quality Assurance and Warranty Information
Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and fitment. The HLS-1054 instrument panel dimmer switch undergoes rigorous quality control to maintain consistent electrical function. While specific warranty details may vary, Standard Ignition typically offers coverage against manufacturing defects. Consult product documentation or your parts provider for exact warranty terms.
| Brand | Standard Ignition |
| Part Number | HLS-1054 |
| Attachment Method | Direct, Snap Fit |
| Color | Black |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Contents | Switch |
| Finish | Plastic |
| Functions | Headlight |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Voltage | 12 |
This part fits 70 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2009 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2009 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2009 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2009 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2008 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2008 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2008 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2008 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2008 | Isuzu | Ascender | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2008 | Isuzu | Ascender | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2007 | Buick | Rainier | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2007 | Buick | Rainier | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2007 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2007 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2007 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2007 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2007 | Isuzu | Ascender | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2007 | Isuzu | Ascender | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2006 | Buick | Rainier | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2006 | Buick | Rainier | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2006 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2006 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2006 | Chevrolet | Trailblazer EXT | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2006 | Chevrolet | Trailblazer EXT | N/A | Instrument Panel Dimmer Switch w/ Headlight Washers and DRL/OFF Mode |
| 2006 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2006 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2006 | GMC | Envoy XL | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2006 | GMC | Envoy XL | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2006 | Isuzu | Ascender | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2006 | Isuzu | Ascender | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2005 | Buick | Rainier | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2005 | Buick | Rainier | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2005 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2005 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2005 | Chevrolet | Trailblazer EXT | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2005 | Chevrolet | Trailblazer EXT | N/A | Instrument Panel Dimmer Switch w/ Headlight Washers and DRL/OFF Mode |
| 2005 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2005 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2005 | GMC | Envoy XL | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2005 | GMC | Envoy XL | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2005 | GMC | Envoy XUV | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2005 | GMC | Envoy XUV | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2005 | Isuzu | Ascender | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2005 | Isuzu | Ascender | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2004 | Buick | Rainier | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2004 | Buick | Rainier | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2004 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2004 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2004 | Chevrolet | Trailblazer EXT | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2004 | Chevrolet | Trailblazer EXT | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2004 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2004 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2004 | GMC | Envoy XL | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2004 | GMC | Envoy XL | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2004 | GMC | Envoy XUV | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2004 | GMC | Envoy XUV | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2004 | Isuzu | Ascender | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2004 | Oldsmobile | Bravada | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2004 | Oldsmobile | Bravada | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2003 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2003 | Chevrolet | Trailblazer | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2003 | Chevrolet | Trailblazer EXT | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2003 | Chevrolet | Trailblazer EXT | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2003 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2003 | GMC | Envoy | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2003 | GMC | Envoy XL | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2003 | GMC | Envoy XL | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2003 | Isuzu | Ascender | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
| 2003 | Oldsmobile | Bravada | N/A | Instrument Panel Dimmer Switch compatible with vehicles without Headlight Washers, with Fog Lights, and DRL/OFF Mode. |
| 2003 | Oldsmobile | Bravada | N/A | Instrument Panel Dimmer Switch is compatible with vehicles without Headlight Washers and with DRL/OFF Mode. |
* 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:
103729521S391553-227138259326350HL7071S2287SW4185
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.