Operate your headlights and set dash-light brightness from one control with the Standard Headlight Switch / Instrument Panel Dimmer Switch HLS-1152, a multi-function dash switch that turns the headlights on and off and adjusts instrument panel lighting. It fits many vehicles, among them the 2003-2009 Chevrolet Trailblazer, 2003-2009 GMC Envoy and 2003-2007 Chevrolet Express 1500, as a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list and engine details.
This part is listed under both names, headlight switch and instrument panel dimmer switch, because one dash unit handles both jobs. If a failed Envoy switch, or the same switch in another listed vehicle, is the cause of headlights that flicker or won't come on, or dash lights that won't dim, this unit replaces it. Check bulbs, fuses and wiring first, since they can cause the same symptoms.
Interchange: S10019 · SW4180 · HL7168 · 10372953 · 15067050 · 25932636
This part cross-references / interchanges with the following part numbers:
Will this Trailblazer switch fit my 2003-2009 Chevrolet Trailblazer?
Yes. The Standard HLS-1152 is listed as a direct-fit replacement for the 2003-2009 Chevrolet Trailblazer. The Buyer's Guide tab shows every listed application.
What does the HLS-1152 switch do?
It is a multi-function dash switch that turns the headlights on and off and adjusts instrument panel brightness. That is why it is listed as both a headlight switch and an instrument panel dimmer switch.
What are the signs this switch may need replacing?
Headlights that flicker or won't come on, or dash lights that won't dim, can be signs of a worn switch. Bulbs, fuses and wiring can cause the same symptoms, so diagnose the cause first.
How does Standard test this switch?
Standard tests 100% of these switches to verify both mechanical and electrical switching performance.
What are the switch's conductors made of?
The switch uses copper alloy conductors, which provide high electrical conductivity with low resistive losses.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
