Chevrolet G10 Back Up Light Switch Guide: 1975-1981
Fix your reverse lights for good with the right information for your 1975-1981 Chevy G10 van.
- The main symptom of failure is your reverse lights not working.
- Before replacing, always check the fuse (often labeled 'TURN B/U') and the bulbs first.
- The switch location depends on your transmission: on the steering column for automatics, or on the transmission for manuals.
- Quality aftermarket brands like Standard Ignition are the most common and reliable replacement option, as OEM parts are unavailable.
Is Your Back Up Light Switch Failing?
The most obvious sign of a problem is your reverse lights not turning on at all. However, because this is a mechanical switch, it can also fail intermittently. You might notice the lights flicker, or only work if you hold the shifter in a specific spot between gears. This often points to a switch that is worn out or needs adjustment.
First, Check the Simple Stuff
Before you replace the switch, check other common causes. A blown fuse, bad bulbs, or corroded bulb sockets can also cause the lights to fail. On these vans, the fuse is often labeled "TURN B/U" or something similar. Also, check for loose or corroded wiring, especially the ground wires at the rear of the van.
Choosing the Right Aftermarket Switch
For a vehicle from this era, new Original Equipment (OEM) parts from Chevrolet are generally no longer available. The market is served by aftermarket manufacturers. For a simple part like a back up light switch, a quality aftermarket brand provides a reliable and cost-effective solution.
Standard Ignition (Standard Motor Products): This is a well-known and trusted brand in the aftermarket that has been around for decades. They produce a wide range of switches and electrical components that are designed to be direct-fit replacements for the original parts. Their switches are tested and use quality materials like copper conductors to ensure they work correctly right out of the box. For a part like this, Standard Ignition offers a dependable, no-frills replacement that meets or exceeds the original specifications.
Pro Tip: Verify Your Transmission
The biggest mistake when ordering this part is getting the wrong one for your transmission. The switch for an automatic transmission with a column shifter is completely different from the switch used on a 3-speed or 4-speed manual transmission. Always confirm your van's specific transmission type before purchasing a new switch.
Back Up Light Switch Replacement Cost for 1975-1981 Chevrolet G10
| Item | Estimated Cost |
|---|---|
| New Aftermarket Switch | $26.08 - $53.37 |
| Shop Labor | $60 - $120 |
Frequently Asked Questions
Where is the back up light switch located on my G10?
For most G10s with an automatic transmission, the switch is mounted on the steering column, down by the floor near the firewall. For manual transmission models, it is screwed into the side of the transmission housing.
Can I replace the back up light switch myself?
Yes, this is a very DIY-friendly job for most home mechanics. For column-mounted switches, access can be a bit tight under the dashboard, but it typically just clips on and plugs in. Transmission-mounted switches are also straightforward, though you will need to safely raise the vehicle to access them. Basic hand tools are usually all that is required.
My lights only work when I jiggle the shifter. Is the switch bad?
This is a classic symptom of either a worn-out or misadjusted switch. For switches on the steering column, there is often a small amount of built-in adjustment. You can try loosening the mounting screws and sliding the switch slightly to see if you can find the 'sweet spot' where it works correctly. If that doesn't work, the internal contacts are likely worn and the switch needs to be replaced.
Are there any recalls for the back up light switch on my van?
There are no specific recalls or Technical Service Bulletins (TSBs) from the NHTSA for the back up light switch on the 1975-1981 Chevrolet G10. This is not unusual for a non-critical safety part on a vehicle of this age.
Technical Specifications
Location varies by transmission type (column or transmission mounted)
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.