Fog lights stay on with high beams (Bambi mode) — F-150 FORScan mod (2021–2026)
Keeps the front fog lamps lit when the high beams are switched on, instead of the factory behavior of shutting fogs off with highs.
- Module
- BCM — Body Control Module (726)
- Model years
- 2021 2022 2023 2024 2025 2026
- Powertrain
- Gas (EcoBoost, 5.0L, V6), PowerBoost hybrid, Lightning EV
- Trim & equipment
- Fog-lamp-equipped trucks
- Lightning: not verified; values come from gas/PowerBoost trucks
- Category
- Lighting
- Risk
- Low risk
- FORScan setting
- No named setting documented. Use As-Built Format.
- As-Built
BCM 726-39-02 xxx0 xxxx xx--As published by the source below. Compare against your own backup; surrounding digits control other features.
Notes
In the F-150 community 'Bambi mode' means fogs-with-high-beams, not DRL-off. As-Built field name per Livnitup sheet: FrontFog_WithHighBeams_Cfg (0=ALLOW, 1=INHIBIT). Confirmed on 2021 (thread) and 2025 King Ranch PowerBoost. One user reports it coexists with glare-free headlights. Check local fog-lamp laws.
How to apply it
- Back up every module's As-Built data and keep the files somewhere safe.
- Connect FORScan with a battery maintainer on, ignition ON and engine OFF.
- Open Configuration and Programming, choose the BCM module, open As-Built Format and edit only the digit described by the source.
- Write, follow any module reset prompt, cycle the ignition, then confirm the feature and check for new trouble codes.
Sources
- docs.google.com — docs.google.com/spreadsheets/d/1-_e09lLPPeSHoO3SsNwyqu5v3dgpbluvJcezUItTSVI/edit#gid=16973
- f150gen14.com — www.f150gen14.com/2021/05/27/2021-f-150-forscan-database-spreadsheet/
- f150gen14.com — www.f150gen14.com/forum/threads/my-forscan-mods-on-2025-kr.34639/
- f150forum.com — www.f150forum.com/f129/list-your-chosen-forscan-mods-your-truck-523084/