2012-2015 Kia Forte5 Neutral Safety Switch: A Complete Replacement Guide
If your Forte5 won't start or is shifting strangely, the neutral safety switch could be the culprit.
- A no-start condition where the lights work is the #1 symptom of a bad neutral safety switch.
- The P0705 trouble code is a definitive sign pointing to a problem with this switch or its circuit.
- This is a safety-critical part; a failure can leave you stranded or cause the vehicle to start in gear.
- Quality aftermarket brands like Standard Ignition and Rostra offer a reliable repair without the higher OEM cost.
Symptoms of a Failing Neutral Safety Switch
A bad neutral safety switch on a Kia Forte5 can cause several distinct and frustrating problems. Because the switch is directly tied to starting the engine and transmission function, the symptoms are often hard to ignore.
- No Start or Intermittent Start: This is the most common sign. You turn the key, the dashboard lights and radio come on, but the engine doesn't crank. It may happen intermittently at first, or you might find the car starts in Neutral but not in Park.
- Check Engine Light: A failing switch will often trigger a Check Engine Light. The most common trouble code associated with this part is P0705 (Transmission Range Sensor Circuit Malfunction).
- Erratic Shifting: Your Forte5 might experience harsh or delayed shifts, or feel like it's slipping between gears. In some cases, the transmission may get locked into a single gear, a condition known as "limp mode."
- No Reverse Lights: If the switch can't tell the computer that you've shifted into Reverse, your backup lights won't turn on.
- Incorrect Gear Display: The gear indicator on your instrument cluster (P, R, N, D) may not match the gear you've actually selected.
Choosing the Right Aftermarket Part
For the 2012-2015 Kia Forte5, the OEM neutral safety switch works well, but quality aftermarket options provide a reliable and cost-effective alternative. For a component like this, you don't always need to pay dealer prices.
Brands like Standard Ignition (SMP) and Rostra Powertrain are well-regarded in the aftermarket industry. They specialize in producing electronics that meet or exceed original equipment specifications. These brands use quality materials like copper alloy conductors to ensure proper electrical performance and are typically 100% tested for reliability. Choosing a reputable aftermarket brand like these over a generic, unbranded part is a smart move to ensure longevity and proper function without the high cost of an OEM part.
| Part or Service | Estimated Cost |
|---|---|
| New OEM Part | $65 - $85 |
| New Aftermarket Part | $71 - $76 |
| Shop Labor | $100 - $200 |
| Total Replacement Cost | $171 - $285 (Shop) / $71 - $76 (DIY) |
Pro Tip: Diagnose First!
A no-start condition can also be caused by a dead battery, a bad starter, or a faulty alternator. Before buying a new switch, confirm the battery is charged and have the starting and charging systems tested to avoid replacing the wrong part.
Frequently Asked Questions (FAQ)
What does the P0705 code mean on my Kia Forte5?
The P0705 code specifically means "Transmission Range Sensor Circuit Malfunction." This tells you that the car's computer is receiving an incorrect or irrational signal from the neutral safety switch about which gear the car is in. This is a strong indicator that the switch itself or its wiring is faulty.
Can I perform this replacement myself (DIY)?
Yes, this is a feasible DIY job for someone with basic mechanical skills and tools. The switch is located on the outside of the transmission. The process involves safely raising the vehicle, disconnecting the battery, removing the shift cable and electrical connector from the switch, and then unbolting the old switch to install the new one. Always make sure the vehicle is securely supported on jack stands before working underneath it.
Is there a recall on the 2012-2015 Forte5 for this part?
No, there are no active recalls from Kia or NHTSA for the neutral safety switch on the 2012-2015 Kia Forte5. There was a service action (SA317A) for this switch on some 2017 Kia models, but it does not apply to this year range.
Is an aftermarket neutral safety switch a reliable choice?
Yes, a quality aftermarket switch from a known brand like Standard Ignition or Rostra Powertrain is a reliable and budget-friendly choice. These parts are designed as direct-fit replacements and are a common repair item, offering performance comparable to the original without the OEM price tag.
Technical Specifications
OEM Part Numbers: 42700-3B700 42700-26700 42700-26500 42700-26000 42700-3B100 42700-3B500
Also known as a Transmission Range Sensor or Inhibitor Switch. Mounts to the exterior of the automatic transmission.
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.
- Kia Forte5: