How to service the headlamp dimmer switch on Scion tC?

A service on the headlamp dimmer switch should start with disconnecting the negative battery cable then waiting 90 seconds to avoid the activation of Air Bags and seat belt pretensioners. The first step involves separating the steering column cover along with the headlight dimmer switch assembly through a process of disconnecting the connector and body of the claw while protecting this delicate structure. You should first attach the claw before installing the headlight dimmer switch assembly followed by reattaching the connector. Return and reinstall the steering column cover followed by connection of the cable to the negative battery terminal. System initialization must take place before moving the cable connection between the negative battery terminal and disconnecting it.

OEM Scion tC Dimmer Switch

Light Dimmer Switch

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3 Dimmer Switches found

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Scion tC Dimmer Switch
Part Number: 84140-52220
$148.16 MSRP: $209.73
You Save: $61.57 (30%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Switch Assembly, Headlamp Dimmer; Combination Switch; Multi Purpose Switch; Headlamp Switch; Multifunction Switch; Headlamp Dimmer Switch
- Replaced by: 84140-47140
- Replaces: 84140-47061, 84140-12890, 84140-47060
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2012-2016 Scion tC | Base | 4 Cyl 2.5 L GAS
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Scion tC Dimmer Switch
Part Number: 84140-47140
$148.16 MSRP: $209.73
You Save: $61.57 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Switch Assembly, Headlamp Dimmer; Combination Switch; Multi Purpose Switch; Headlamp Switch; Multifunction Switch; Headlamp Dimmer Switch
- Replaces: 84140-12720, 84140-12680
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2012 Scion tC | Base | 4 Cyl 2.5 L GAS
View related parts
Scion tC Headlamp Switch
Part Number: 84140-20670
$151.33 MSRP: $214.22
You Save: $62.89 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Switch Assembly, Headlamp Dimmer; Multi Purpose Switch
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2005-2010 Scion tC | Base, Spec | 4 Cyl 2.4 L GAS

Scion tC Dimmer Switch

If you're thinking about purchasing OEM parts for your Scion tC, our website is your one-stop destination. We stock an extensive selection of genuine Scion tC Dimmer Switch at pocket-friendly prices. Plus, we guarantee a swift delivery and a hassle-free return policy for your convenience.

Scion tC Dimmer Switch Parts Questions & Experts Answers

Headlamp Switch
84140-20670
Q: How to service the headlamp dimmer switch on Scion tC?
A: A service on the headlamp dimmer switch should start with disconnecting the negative battery cable then waiting 90 seconds to avoid the activation of Air Bags and seat belt pretensioners. The first step involves separating the steering column cover along with the headlight dimmer switch assembly through a process of disconnecting the connector and body of the claw while protecting this delicate structure. You should first attach the claw before installing the headlight dimmer switch assembly followed by reattaching the connector. Return and reinstall the steering column cover followed by connection of the cable to the negative battery terminal. System initialization must take place before moving the cable connection between the negative battery terminal and disconnecting it.