Go-Parts
Cart 0
Your cart is empty
Add an item to see it appear here.
Wrenchy
Go-Parts Garage
Expert guides for diagnosing, troubleshooting, and replacing auto parts Expert guides for diagnosing and replacing auto parts
Browse All →
🎬 Helpful Videos 🛍️ Shop This Part

Brake Light Switch Guide for the 1961-1967 Oldsmobile 98

Ensure your classic Olds is seen and safe by fixing common brake light issues with the right switch.

3 minutes to read 1961-1967 Oldsmobile 98
Difficulty
1/5
Est. Time
0.5 hrs
DIY Doable?
✅ Yes
Shop Labor
$50-$100
Used OEM Price
$15-$40
🚫 Do not drive — It is illegal and extremely unsafe to drive a vehicle with non-functioning brake lights.
Key Takeaways
  • A faulty brake light switch is a common, inexpensive, and easy-to-fix problem on a 1961-1967 Oldsmobile 98.
  • Symptoms include brake lights not working, staying on, or working intermittently; always check bulbs and fuses first.
  • Replacement is a simple DIY task, with the main challenge being physical access under the dashboard.
  • Driving without functional brake lights is illegal and extremely dangerous; do not operate the vehicle until it is repaired.
The brake light switch on your 1961-1967 Oldsmobile 98 is a simple but crucial part. It is a mechanical switch located under the dashboard, attached to the brake pedal arm. When you press the brake pedal, the pedal arm moves away from the switch's plunger. This movement closes an electrical circuit, sending power to your rear brake lights and turning them on. When you release the pedal, it presses the plunger back in, opening the circuit and turning the lights off. It is a fundamental safety component for signaling to other drivers that you are slowing down or stopping.

Is a Faulty Brake Light Switch Keeping Your Oldsmobile in the Dark?

A failing brake light switch is a common issue on classic cars like the 1961-1967 Oldsmobile 98. Over decades of use, the internal contacts can wear out or the mechanical plunger can fail. The most frequent symptoms are brake lights that don't turn on at all, or lights that stay on even when you're not braking. 🎬 Watch this guide on identifying symptoms of a failing switch. Before assuming the switch is bad, it's wise to first check the brake light bulbs and the fuse, as these are also common and simple failure points. However, if the bulbs and fuse are good, the brake light switch is the next logical component to inspect.

Choosing the Right Aftermarket Switch

For a vehicle from this era, finding a "new OEM" part from General Motors is nearly impossible. The market is served by aftermarket manufacturers who produce new replacement parts. This is often a good thing, as modern manufacturing can result in a more durable switch than the original. You have a choice between different tiers of aftermarket brands.

  • Professional Grade (Standard Ignition): Standard Motor Products (SMP), who makes the Standard Ignition brand, is a long-established and trusted name in the aftermarket. Their parts are often used by professional mechanics and are known for quality and reliability. For a critical safety part, choosing a brand like Standard provides peace of mind.
  • Value-Oriented (Skyward): Skyward represents a more budget-friendly option. While there is less brand-specific information available for Skyward's quality on this particular part, value brands are a practical choice for owners looking to complete a repair at the lowest possible cost. For a simple switch, this can be a viable option, though long-term durability may vary compared to premium brands.

Pro Tip: On these older cars, electrical problems are often caused by bad grounds. While replacing the switch, take a moment to clean the electrical connectors and ensure the switch has a solid ground connection. This can prevent future issues.

Cost of Replacing Your Brake Light Switch

Replacing the brake light switch is one of the more affordable repairs you can perform on your classic Oldsmobile. The parts are inexpensive, and if you do it yourself, the only cost is the part itself. Even having a shop do it is relatively cheap due to the low labor time.

Item Estimated Cost
New Aftermarket Part $5.40 - $29.97
Shop Labor $50 - $100
Total (Shop Repair) $55 - $130

Warning: Do not drive your vehicle if the brake lights are not working. It is illegal and extremely dangerous for you and other drivers on the road.

Frequently Asked Questions

Where is the brake light switch located on my Oldsmobile 98?

The brake light switch is located directly above the brake pedal, under the dashboard. It is mounted on a bracket so that the brake pedal arm makes contact with its plunger 🎬 Learn more about how the brake light switch mechanism works. when the pedal is at rest.

Is replacing the brake light switch a difficult job?

No, it is generally considered a very easy job. The main difficulty is the uncomfortable position required to access the area under the dashboard. The switch is typically held by a clip or a simple bracket and has two electrical wires connected to it.

🎬 See a step-by-step video on testing and replacing the sensor.
My brake lights and turn signals don't work. Is it the brake light switch?

It could be, but it's more likely an issue with the turn signal switch in the steering column. On these GM vehicles, the power for the brake lights runs through the turn signal switch. This allows the switch to cancel the brake light on one side when the turn signal is active. If both are failing, the turn signal switch is a common culprit.

Should I buy a Standard Ignition or a Skyward switch?

If reliability and peace of mind are your top priorities, Standard Ignition is a well-regarded brand with positive reviews. If you are on a tight budget and comfortable with a potentially less-proven part, Skyward offers a significant cost saving.

Brake Pedal and Brake Light Sensor Switch Testing and Replacement
Brake Pedal and Brake Light Sensor Switch Testing and Replacement
SYMPTOMS OF A BAD BRAKE LIGHT SWITCH (REAR BRAKE LIGHT STAYS ON)
SYMPTOMS OF A BAD BRAKE LIGHT SWITCH (REAR BRAKE LIGHT STAYS ON)
Brake Light Won't Work - Easy Fix!
Brake Light Won't Work - Easy Fix!
Brake Light Switch Explained - How It Works and What You Need to Know
Brake Light Switch Explained - How It Works and What You Need to Know

Technical Specifications

Mechanically-actuated, 2-terminal plunger switch.

Wrenchy
Article researched & written by
Go-Parts' AI research assistant. Every article is backed by live web research, verified OEM data, and real technician knowledge — so you get accurate, up-to-date information you can trust.
Meet Wrenchy → Updated Jul 21, 2026

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.

Year Coverage
This article covers the Brake Light Switch for:
In this article
🎬 Helpful Videos
Jump to ▴

Email This Guide

We'll send you a link to this article so you can read it later or share it.

Added to cart · Part