1978-1985 Dodge Magnum Brake Light Switch Replacement Guide
Don't get left in the dark; learn the signs of a failing brake light switch and how to choose the right replacement.
- A failing brake light switch can cause your brake lights to stop working, stay on constantly, or work intermittently.
- This is a very simple and inexpensive part to replace, making it an ideal DIY job.
- Before replacing the switch, check the fuse and ensure the brake pedal is properly returning to press the switch plunger.
- Standard Ignition is a reputable aftermarket brand for this part; there is little information available on the Skyward brand.
Is Your Dodge Magnum's Brake Light Switch Failing?
The brake light switch is a simple part, but when it fails, it can cause confusing and dangerous problems. Because your Magnum predates modern computer controls, you won't get a "check engine" light for this issue. Instead, you need to watch for a few key signs.
Symptoms of a Failing Brake Light Switch
- Brake Lights Don't Work: The most obvious and dangerous symptom is when your brake lights fail to illuminate when you press the brake pedal. This is a major safety hazard.
- Brake Lights Stay On: A faulty switch can get stuck in the "on" position, leaving your brake lights illuminated even when you're not braking. This can drain your battery and confuse other drivers.
- Intermittent Brake Lights: The switch might work sometimes and not others. This could be due to wear and tear inside the switch itself.
Check This First!
Before you replace the switch, check for simple mechanical issues common to this era of Mopar vehicles. Owners report that sometimes the brake pedal doesn't return all the way to the top, which prevents it from pressing the switch plunger. Also, check the fuse for the brake lights to make sure it hasn't blown. A blown fuse that keeps blowing suggests a short in the wiring, not necessarily a bad switch.
Choosing the Right Aftermarket Brake Light Switch
For a classic vehicle like the 1978-1985 Magnum, aftermarket parts are the most common and accessible option. Original OEM parts are likely discontinued and difficult to find. The quality of aftermarket parts can vary, so it's important to know the brands.
Brand Tiers
- Standard Ignition (Standard Motor Products): This is a well-established brand known for producing reliable electronic components. Owner reviews for their brake light switches are generally positive, often mentioning a perfect fit and an easy fix for their brake light problems. This is considered a dependable, standard replacement option.
- Skyward: There is very little public information available regarding the quality or performance of Skyward automotive parts. Searches primarily show employee reviews for the company, not product reviews. This brand likely falls into the budget or economy category. While it may offer a lower price, its long-term reliability is undocumented.
Pro Tip: On many Mopar vehicles from this period, the bracket holding the brake light switch is adjustable. Sometimes, simply loosening the bracket, repositioning it to make better contact with the pedal arm, and tightening it can solve your brake light issue without needing a new part.
Aftermarket Brake Light Switch Cost for 1978-1985 Dodge Magnum
| Part Type | Price Range |
|---|---|
| New Aftermarket | $5.40 - $29.97 |
| New OEM | N/A (Generally Discontinued) |
| Shop Labor | $50 - $100 |
Frequently Asked Questions
How hard is it to replace the brake light switch on my Magnum?
This is a very easy job for a DIY mechanic. The switch is located on a bracket just above the brake pedal arm. It typically involves unplugging the electrical connector and unclipping or unscrewing the old switch. The entire process usually takes less than 30 minutes.
Why do my brake lights stay on all the time?
This usually happens for one of two reasons: the switch has failed internally and is stuck in a closed circuit, or the pedal is no longer making contact with the switch's plunger to turn it off. Check to see if a small rubber or plastic stopper on the pedal arm has broken or fallen off, or if the switch or its bracket has moved out of position.
Can a bad brake light switch drain my battery?
Yes. If the switch fails and causes the brake lights to stay on constantly, it will drain your battery, especially if the car is parked for an extended period.
Are there any recalls for the brake light switch on the 1978-1985 Dodge Magnum?
No specific recalls or technical service bulletins (TSBs) were found for the brake light switch on the 1978-1985 Dodge Magnum during our research. Any recalls found are for much newer Dodge models.
Technical Specifications
Typically a 2-terminal, plunger-style mechanical switch mounted to the brake pedal assembly.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.