Pontiac Tempest Headlight Dimmer Switch Guide: 1961-1971
If your Tempest headlights are flickering or stuck on one beam, the floor-mounted dimmer switch is a likely cause.
- The headlight dimmer switch on a 1961-71 Tempest is a simple, foot-operated switch on the floor, not on the steering column.
- Common failure symptoms include headlights that flicker, are stuck on one beam, or don't work at all.
- An aftermarket switch from a reputable brand like Standard Ignition is the most practical and reliable replacement option.
- Replacement is a simple DIY task that involves removing two screws under the carpet.
Symptoms of a Failing Headlight Dimmer Switch
A bad dimmer switch can create dangerous situations at night. Because this part is located on the floor, it is also easily damaged by moisture from rain or snow brought in on your shoes, which can cause corrosion. Watch for these common signs of failure.
- Headlights Stuck on One Beam: The most obvious sign is when you can't switch between high and low beams. You might get stuck with only low beams, or worse, only high beams that can blind other drivers.
- Flickering Headlights: If your headlights flicker when you hit a bump or for no reason, the internal contacts of the dimmer switch could be worn. This can also be caused by a failing main headlight switch or a bad ground connection, which are common issues on classic cars.
- Headlights Won't Turn On: In cases of complete failure, the switch may not allow any power to get to the headlights at all. However, you should always check your main headlight switch and fuses first.
Choosing the Right Aftermarket Switch
For a vehicle like the 1961-1971 Tempest, finding a new original equipment (OEM) part from GM is nearly impossible. Used OEM switches are available, but they are just as old as the part you are replacing. An aftermarket switch is the most practical and reliable choice.
Aftermarket Brand Quality: Standard Ignition
| Brand Tier | Our Assessment |
|---|---|
| Standard Ignition (Standard Motor Products) | Standard is a well-known brand that has been making auto parts for over 100 years. It is widely considered a reliable, professional-grade choice for replacement parts. Their switches use copper alloy conductors to ensure good electrical performance. For a simple part like a dimmer switch, this brand offers a quality and fit that is dependable for a daily driver or a show car. |
Pro Tip: Check Your Grounds
Pontiac forums frequently mention that headlight problems are often caused by bad grounds. The dimmer switch itself sometimes needs a clean, solid connection to the metal floor pan to work correctly. While you are replacing the switch, take a moment to clean the mounting area on the floor and check the main headlight ground wires for rust or corrosion.
Cost of a New Headlight Dimmer Switch (1961-1971 Pontiac Tempest)
| Part/Service | Average Cost |
|---|---|
| New Aftermarket Switch | $25 - $40 |
| Shop Labor | $50 - $75 |
| Total Estimated Cost | $75 - $115 |
Cost for a new aftermarket part and professional installation. Prices can vary by location and garage.
Frequently Asked Questions
Is this the same as the switch on the dashboard?
No. The switch on the dashboard turns the power on and off for all the exterior lights. The foot-operated dimmer switch only changes the headlights between high and low beams. The two switches work together but are separate parts.
Are there any recalls for the headlight dimmer switch on my Tempest?
No, there are no recalls or technical service bulletins (TSBs) from the National Highway Traffic Safety Administration (NHTSA) for the headlight dimmer switch on the 1961-1971 Pontiac Tempest. Any failures are due to the age and normal wear of the part.
Can I replace the headlight dimmer switch myself?
Yes, this is a very easy job for a DIY mechanic. The switch is typically held to the floor pan by two screws under the carpet. You just need to lift the carpet, unplug the old switch, and screw the new one in its place. The entire job usually takes less than 30 minutes.
Why do my headlights flicker even with a new switch?
If you replaced the dimmer switch and the lights still flicker, the problem could be the main headlight switch in the dash, which contains an internal circuit breaker that can go bad. Another common cause is a poor ground connection at the headlights themselves or from the engine to the body.
Technical Specifications
OEM Part Numbers: Not available from search
3-terminal floor-mounted switch.
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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.