1987 Chevrolet R10 Headlight Switch: A Comprehensive Guide
Don't get left in the dark; learn to identify and replace a failing headlight switch in your classic 1987 Chevy R10.
- Flickering dash lights are the most common symptom of a failing headlight switch on this truck.
- Replacement is a simple, beginner-friendly DIY job that takes less than an hour.
- Before replacing the switch, check fuses, bulbs, and grounds to rule out simpler issues.
- Standard Ignition is a well-regarded aftermarket brand, while 'Replacement' offers a value-focused option.
Is Your Headlight Switch Failing? Common Symptoms
A faulty headlight switch on a 1987 Chevrolet R10 often gives clear warning signs. Because the switch also contains the dimmer for the dash lights, problems with interior lighting are a very common symptom. If you notice any of these issues, it may be time for a replacement.
🎬 Watch this video to confirm if your headlight switch is bad.- Flickering or Inoperative Dash Lights: One of the most frequent complaints is flickering or dimming instrument panel lights when you twist the switch knob. This is often caused by corrosion or wear on the internal rheostat (the part that controls dimming).
- Headlights Don't Turn On: If you pull the switch and the headlights don't come on at all, but other lights work, the switch itself could be the culprit. This can be a major safety hazard.
- Lights Work Intermittently: Headlights or dash lights that cut in and out could point to a loose connection or a failing switch. Sometimes, heat from the electrical current can cause the connection to fail after the lights have been on for a while.
- Burning Smell or Hot Switch: A plastic burning smell or a switch that is hot to the touch is a serious warning sign. This indicates the switch is overheating and could be a fire risk. Stop using the vehicle and replace the switch immediately.
Check Other Components First
Before replacing the headlight switch, it's wise to rule out other potential issues. Check for burnt-out bulbs, blown fuses, and bad ground connections, as these can cause similar lighting problems. Also, on these trucks, the high/low beam selector (dimmer switch) is a separate part, often located on the steering column or floor, which can also fail and prevent headlights from working correctly.
Choosing the Right Aftermarket Headlight Switch
For a classic truck like the 1987 R10, new OEM (Original Equipment Manufacturer) parts from GM are generally unavailable. The good news is that the aftermarket offers reliable replacements. Your choice will come down to a balance of brand reputation and price.
Pro Tip: Clean or Replace?
Some owners report successfully cleaning the internal contacts of the original switch with electrical contact cleaner to fix flickering dash lights. However, given the low cost of a new switch and the safety-critical function of headlights, replacement is often the more reliable long-term solution, especially if the switch is overheating or failing completely.
Headlight Switch Replacement Cost for 1987 Chevrolet R10
Replacing the headlight switch is an affordable repair. The parts are not expensive, and if you have basic tools, you can do the job yourself in under an hour.
🎬 See how to replace a squarebody headlight switch yourself.Frequently Asked Questions (FAQ)
How difficult is it to replace the headlight switch on a 1987 R10?
It is a relatively easy job for a DIYer. The process involves removing the dash bezel, pressing a spring-loaded button on the switch body to release the knob and shaft, unscrewing a retaining nut, and unplugging the electrical connector. No special tools are required, though a pair of needle-nose pliers can help with the retaining nut.
Do I need to disconnect the battery to replace the headlight switch?
Yes, you should always disconnect the negative battery terminal before working on any electrical components. This prevents accidental short circuits that could damage the new switch, blow fuses, or cause injury.
My headlights are stuck on high beam. Is that the main headlight switch?
No, that is more likely a problem with the dimmer switch. On the 1987 R10, the dimmer switch that selects between high and low beams is a separate part from the main headlight switch. It is activated by the turn signal lever but is physically located lower on the steering column.
🎬 Learn how to replace the separate high beam dimmer switch.Why do my new aftermarket headlights flicker?
If you've upgraded to high-power halogen or LED headlights, they may draw more current than the original wiring was designed for. This extra load can cause the stock headlight switch or dimmer switch to overheat and fail, leading to flickering. Installing a headlight relay kit can solve this by taking the high-current load off the switch.
Are there any recalls for the 1987 Chevy R10 headlight switch?
No specific recalls for the headlight switch on the 1987 Chevrolet R10 were found in NHTSA searches. Recalls for lighting issues on GM vehicles are typically for much newer models and different problems.
Helpful Videos
Technical Specifications
The 1987 R10 may use a 7-pin or 8-pin switch; it is best to verify by removing the old switch before ordering. The switch controls headlights, parking lights, and the instrument panel dimmer.
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.
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