2025-2026 Hyundai Tucson Limited ISG Eliminator | Memory Harness
Description
2025-2026 Hyundai Tucson Limited ISG Eliminator
Hyundai's Idle Stop and Go (ISG) system can stop the engine automatically when the Tucson is stationary and the required operating conditions are satisfied.
The factory ISG OFF button allows the driver to switch that function off, and pressing it again restores system operation.
For Tucson Limited drivers who routinely prefer ISG disabled, the Recontrol-X module is designed to automate that preferred state.
Limited-Specific Fitment Matters
This is not a generic Tucson product.
The fitment is specifically:
2025 Hyundai Tucson Limited
2026 Hyundai Tucson Limited
External Tucson-specific product data also distinguishes three application groups:
SE / SEL / XRT / N Line
Limited 2021-2024
Limited 2025-2026
That is exactly why the word Limited should appear prominently in the Name, Short Description, SEO and first QA.
Push-Button-Shifter Console Installation
The Limited version uses the push-button-shifter console configuration.
Available installation material for the 2025-2026 Limited shows the eliminator installing inline at the appropriate connector behind the console switch assembly.
The module uses factory-style multi-pin connectors rather than:
- OBD-II installation
- Wire splicing
- Permanent ECU programming
- A universal generic switch adapter
2022-2024 and 2025-2026 Limited Are Separate Harness Groups
This is probably the biggest purchasing risk.
A customer could easily see “Hyundai Tucson Limited” and assume a 2022-2024 module works on a 2025-2026 vehicle.
Current manufacturer data does not treat them as the same application. Separate Limited variants and separate installation videos are provided for the two year groups.
The product page therefore needs to repeatedly reinforce:
2025-2026 Limited only.
Factory ISG Control Remains Available
The memory module is intended to manage the normal preferred state, not remove all control of Hyundai's ISG feature.
The factory ISG OFF switch can still be used to change the setting when desired.
Why ISG May Not Activate
Hyundai requires several conditions before Auto Stop is allowed, including suitable battery charge, engine temperature, climate-control status, driver/door conditions and road/steering conditions.
A white Auto Stop indicator can simply mean the prerequisites are not currently satisfied. A yellow indicator can indicate a system issue requiring inspection.
That makes this an important FAQ topic rather than filling the page with generic questions.
Vehicle Fitment
Additional Information
| Brand | Recontrol-X |
Reviews
S&Q
Does this fit every 2025-2026 Hyundai Tucson?
No. This version is specifically for the Limited trim. Other trims use separate harness/application configurations.
Can I use the 2022-2024 Tucson Limited version on my 2025 Limited?
Do not interchange them. Current Tucson eliminator data lists Limited 2021-2024 and Limited 2025-2026 as separate variants.
Where does this module connect?
The Limited version installs inline in the push-button-shifter console area at the appropriate factory Start/Stop switch connector.
Can I still turn ISG back on?
The factory ISG OFF button remains the manual control for switching the system state.
Why is Auto Stop sometimes unavailable even when ISG is on?
Hyundai only activates Auto Stop when the required conditions are satisfied. Battery charge, engine temperature, climate control and several other vehicle inputs can temporarily prevent operation.