Chevrolet Malibu Back Up Light Switch Guide: 1973-1983
Fix your flickering or dead reverse lights with the right replacement switch for your classic Malibu.
- The back up light switch is often combined with the neutral safety switch on automatic Malibus and is located on the steering column.
- Failure symptoms include non-working or flickering reverse lights.
- This is a simple and affordable DIY repair for most owners, typically taking under an hour.
- Verify if your car is an automatic or manual before ordering, as the parts are different.
Is Your Malibu's Back Up Light Switch Failing?
For a classic car like the 1973-1983 Malibu, electrical components are common failure points. The contacts inside the back up light switch can corrode or wear out over decades of use, leading to unreliable operation. If your reverse lights are acting up, the switch is a likely culprit.
Key Symptoms of a Bad Switch:
- No Reverse Lights: The most obvious sign is that your reverse lights don't turn on at all when you shift into reverse.
- Flickering or Intermittent Lights: The lights may flicker or only work when you jiggle the shifter. This points to worn internal contacts.
- Lights Only Work in a Specific Spot: You may have to hold the column shifter up or move it around a specific spot for the lights to engage, indicating a worn or misaligned switch.
- (For Automatics) No-Start in Park or Neutral: Since the back up light function is often part of the Neutral Safety Switch, a failure can sometimes affect the car's ability to start.
Safety First
Non-working reverse lights are a safety hazard. They make it difficult for other drivers to anticipate your movements, especially in parking lots and at night. While the car is still driveable, this issue should be fixed promptly to avoid accidents and potential traffic tickets.
Choosing the Right Aftermarket Switch
Finding a new, original GM switch for a classic Malibu is nearly impossible. Thankfully, the aftermarket provides several good options that meet or exceed the original quality. For a simple part like this, a reliable aftermarket brand is a smart choice and will perform just as well as an original ever did.
Based on the available brands, here’s how they generally stack up:
- Standard Ignition (SMP): Often considered a top-tier standard replacement brand. Standard Ignition parts are known for their reliability and consistent quality, making them a safe bet for a direct-fit replacement.
- Rostra Powertrain: Rostra is a well-respected manufacturer that produces parts for both original equipment (OE) and the aftermarket. They are known for quality electronic components and are a solid choice for your Malibu.
- Mcleod: Mcleod is primarily known for high-performance drivetrain parts like clutches and flywheels. A switch from Mcleod may be more heavy-duty, often intended for manual transmission applications or performance builds. It's a quality option, though might be overkill for a stock vehicle.
Pro Tip: Check Your Transmission Type
Before ordering, be absolutely sure what kind of transmission you have. The switch for an automatic transmission with a column shifter is different from one for a manual floor shifter. Many online parts catalogs will show you the correct part if you input your vehicle's exact year and submodel.
Cost of a New Back Up Light Switch (1973-1983 Malibu)
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Switch | $16 - $32 |
| Shop Labor | $90 - $180 |
Cost estimates are for the part only and do not include taxes or shipping. Labor costs are estimates and vary by location and shop.
Frequently Asked Questions
Where is the back up light switch located on my Malibu?
For most automatic transmission models with a column shifter, the switch is part of the neutral safety switch assembly. You can find it mounted on the steering column, down near the firewall inside the car. 🎬 Watch: How to replace a GM neutral safety switch For manual transmission cars, it's a smaller, plunger-style switch threaded directly into the transmission housing.
🎬 Watch: Replacing a plunger-style transmission reverse light switchIs this a difficult part to replace myself?
For most DIY mechanics, this is a very manageable job. If the switch is on the steering column, it requires working in a tight space under the dashboard but is held on by a couple of screws. If it's on the transmission, you'll need to safely raise the vehicle to gain access. The difficulty is low, typically taking less than an hour.
Were there any recalls for this part?
No, searches of the National Highway Traffic Safety Administration (NHTSA) database did not show any recalls specifically for the back up light switch on the 1973-1983 Chevrolet Malibu.
My reverse lights still don't work after replacing the switch. What now?
If a new switch doesn't fix the problem, check the simple things first. Inspect the light bulbs and the fuse labeled "TURN B/U" or similar in the fuse panel. Next, check for corroded bulb sockets or bad grounds, which are common electrical problems on older vehicles. Finally, inspect the wiring itself for any visible breaks or damage.
🎬 See how to diagnose complex reverse light wiring issuesHelpful Videos
Technical Specifications
OEM Part Numbers: 1993434
Varies by transmission type (Automatic vs. Manual)
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.