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Pontiac Tempest Brake Light Switch: A Complete Guide (1987-1991)

Understand the common failure points of the brake light switch in your 1987-1991 Pontiac Tempest and how to choose the right replacement.

3 minutes to read 1987-1991 Pontiac Tempest
Difficulty
1/5
Est. Time
0.5 hrs
DIY Doable?
✅ Yes
Shop Labor
$50-$100
🚫 Do not drive — It is illegal and extremely unsafe to drive a vehicle with non-functional brake lights.
Key Takeaways
  • A bad brake light switch is a critical safety issue and should be fixed immediately.
  • Symptoms include brake lights not working, staying on, or cruise control failure.
  • Before replacing the switch, check the bulbs and fuses first.
  • Standard Ignition is a reliable aftermarket brand for this replacement part.
The brake light switch in your Pontiac Tempest is a simple but critical safety component. It is a small sensor located at the top of the brake pedal arm. When you press the brake pedal, the switch closes an electrical circuit, which turns on your brake lights. On models equipped with cruise control, it also serves the important function of deactivating the cruise control system as soon as you touch the brakes.

Is Your Brake Light Switch Failing? Common Symptoms

A failing brake light switch on a 1987-1991 Pontiac Tempest, and its twin the Chevrolet Corsica, can create several dangerous situations. Since this is a simple mechanical switch, failure is usually due to normal wear and tear on its internal contacts. Here’s what to look for:

🎬 Watch this video to identify common brake light switch symptoms.
  • Brake Lights Don't Work: The most critical symptom is when your brake lights fail to illuminate when you press the pedal. This is a major safety risk, as drivers behind you will not know you are slowing down.
  • Brake Lights Stay On: The switch can also fail in the 'on' position, causing the brake lights to remain lit even when your foot is off the pedal. This can drain your battery and confuse other drivers.
  • Cruise Control Malfunctions: If your Tempest has cruise control, a faulty brake light switch can prevent it from engaging or cause it to disengage unexpectedly.
  • Intermittent or Flickering Brake Lights: Worn internal contacts can cause the brake lights to flicker or work only some of the time, which can be just as dangerous as a complete failure.

Safety First: A Critical Part

Driving with a faulty brake light switch is extremely dangerous and illegal. If your brake lights are not working, your vehicle is not safe to drive and should be repaired immediately.

Choosing the Right Aftermarket Brake Light Switch

For a vehicle like the 1987-1991 Pontiac Tempest, original equipment (OEM) parts from GM or ACDelco may be difficult to find. The aftermarket is your most reliable source for a replacement.

Standard Ignition (SMP) is a well-known and reputable brand in the aftermarket industry. They produce a wide range of electrical components that meet or exceed original specifications. For a straightforward part like a brake light switch, a Standard Ignition product is a reliable and cost-effective choice. There is little practical difference in performance or longevity compared to an OEM part for this specific component on this vehicle, making the aftermarket option a smart buy.

Cost of a New Brake Light Switch (1987-1991 Pontiac Tempest)
Part Type Estimated Cost
New Aftermarket (e.g., Standard Ignition) $25.93 - $55.93
Shop Labor $50 - $100

Pro Tip: Check the Bulbs and Fuses First

Before replacing the switch, always check the simple things first. Make sure the brake light bulbs are not burned out and that the corresponding fuse in the fuse panel is intact. This can save you time and money on an unnecessary repair.

Frequently Asked Questions (FAQ)

Where is the brake light switch located on a 1987-1991 Pontiac Tempest?

The brake light switch is located in the driver's footwell, mounted to a bracket near the top of the brake pedal arm. You will need to look up under the dashboard to see it.

Is replacing the brake light switch a difficult job?

No, this is a very easy DIY job for most people. It typically involves disconnecting the electrical connector, then twisting or unclipping the old switch to remove it from its bracket. The new one installs in the reverse order. The entire process usually takes less than 30 minutes.

Are there any recalls for the brake light switch on this car?

No specific recalls were found for the brake light switch on the 1987-1991 Pontiac Tempest or its Chevrolet Corsica counterpart after a search of NHTSA records. Problems with this part are generally due to age and normal wear.

My cruise control doesn't work. Could it be the brake light switch?

Yes, absolutely. The brake light switch is responsible for telling the cruise control system to disengage when you press the brake pedal. If the switch is faulty, the cruise control system may not work at all as a safety precaution.

SYMPTOMS OF A BAD BRAKE LIGHT SWITCH
SYMPTOMS OF A BAD BRAKE LIGHT SWITCH
Symptoms of a BAD BRAKE LIGHT Switch (With Fixes)
Symptoms of a BAD BRAKE LIGHT Switch (With Fixes)
4 Symptoms of a Bad Brake Light Switch (and Replacement Cost)
4 Symptoms of a Bad Brake Light Switch (and Replacement Cost)

Technical Specifications

Typically a push-in or twist-lock style switch with a 2-pin or 4-pin electrical connector, depending on cruise control options.

Wrenchy
Article researched & written by
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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:
  • Pontiac Tempest: 19871988198919901991
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