GMC Safari Back Up Light Switch Guide for 1991-1995 Models
If your reverse lights have stopped working, the back up light switch is a likely and inexpensive part to fix.
- The most common symptom of failure is the reverse lights not working.
- Verify your van's year: 1991-1994 models have the switch on the steering column, while 1995 models have it on the transmission.
- Before replacing, check if the column-mounted switch simply needs adjustment.
- This part also acts as the neutral safety switch, so a failure can cause no-start issues or allow the van to start in gear.
Is Your Safari's Back Up Light Switch Failing?
A bad back up light switch can be both an inconvenience and a safety hazard. The symptoms are usually straightforward, making it easier to diagnose. Before you assume the switch is bad, always check the simple things first: make sure the reverse light bulbs are not burned out and check the fuse for the circuit. If those are okay, the switch itself is the next logical part to inspect.
Symptoms of a Bad Back Up Light Switch
- Reverse Lights Don't Turn On: This is the most common symptom. When you shift into reverse, the lights at the back of the van do not illuminate.
- Engine Won't Start in Park or Neutral: Because the switch is often part of the Neutral Safety Switch, a failure can prevent the engine from cranking. You might find the van starts in Neutral but not Park, or vice-versa.
- Engine Starts in Any Gear: This is a serious safety risk. A shorted-out switch might allow the van to start while in Drive or Reverse, causing it to lurch unexpectedly.
- Intermittent Reverse Lights: You may need to wiggle the gear shifter to get the reverse lights to flicker on. This points to a worn or misaligned switch.
A Critical Part Location Difference: 1991-1994 vs. 1995
It is very important to identify your van's model year correctly. The location and type of switch changed during this period.
- For 1991-1994 Models: The switch is typically a crescent-shaped plastic part mounted on the lower steering column, inside the cabin near the pedals.
- For 1995 Models: The switch is a larger, black-colored unit located on the driver's side of the transmission itself, where the shifter cable connects.
Ordering the wrong part is the most common mistake. Always verify your model year before purchasing a replacement.
Choosing the Right Aftermarket Switch
For a vehicle of this age, aftermarket parts are the most common and affordable option. OEM parts from GM may be difficult to find or discontinued. The quality of aftermarket electrical parts can vary, but several reliable brands are available.
- Premium Aftermarket (ACDelco, NAPA Echlin, Standard Motor Products): Brands like ACDelco (GM's own parts division), NAPA Echlin, and Standard Motor Products (SMP) are known for making reliable sensors and switches that meet or exceed original specifications. They are a solid choice for durability.
- Quality Standard Aftermarket (Duralast, Wells, TRQ): These brands offer a good balance of price and quality. They are widely available and provide a dependable repair for a daily driver. Even with quality parts, some owners have reported needing to adjust the switch carefully upon installation.
| Part Type | Estimated Cost |
|---|---|
| New OEM (ACDelco) | $20 - $50 |
| New Aftermarket | $15 - $45 |
| Shop Labor | $75 - $150 |
Pro Tip: Adjustment Might Be All You Need
For the column-mounted switch on 1991-1994 models, the problem can sometimes be a simple misalignment. This switch has slotted mounting holes that allow for adjustment. If your lights are intermittent or won't come on, you can try loosening the mounting bolts and rotating the switch slightly until the reverse lights work correctly when in reverse. This can sometimes save you the cost of a new part.
Frequently Asked Questions (FAQ)
Is the back up light switch the same as the neutral safety switch?
On the 1991-1995 GMC Safari, they are typically the same component. The part performs both functions: turning on the reverse lights and ensuring the vehicle only starts in Park or Neutral.
How hard is it to replace the back up light switch?
For 1991-1994 models with the switch on the steering column, it is a relatively easy job requiring basic hand tools, with an estimated time of under an hour. For 1995 models with the switch on the transmission, access is more difficult and may take 1-2 hours.
Do I need to disconnect the battery for this repair?
Yes. It is always recommended to disconnect the negative battery terminal before working on any electrical components to prevent short circuits and protect the vehicle's electronics.
Are there any recalls for the back up light switch on my Safari?
No, there are no specific recalls or technical service bulletins (TSBs) from the NHTSA for the back up light switch on the 1991-1995 GMC Safari. While the van was subject to other recalls for issues like brakes and fuel lines, this particular switch was not part of a recall campaign.
Technical Specifications
OEM Part Numbers: 14014559
Function: Combines Neutral Safety Switch and Back Up Light Switch. Location varies by year (steering column for 1991-1994, transmission for 1995).
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.
- GMC Safari: