diff --git a/FuelBoard/ContentView.swift b/FuelBoard/ContentView.swift
index 6992e3b..82875a9 100644
--- a/FuelBoard/ContentView.swift
+++ b/FuelBoard/ContentView.swift
@@ -536,11 +536,12 @@ struct ContentView: View {
 
     /// Compiled in EVERY configuration: the detail sheet's `journeyDiagnostics`
     /// argument is not conditional (an `#if` inside an argument list does not
-    /// build), so this symbol must exist for Release/Archive too. Only the panel
-    /// that renders it is `#if DEBUG`; Release returns nil and does no work.
+    /// build), so this symbol must exist for Release/Archive too. Debug builds
+    /// still require the hidden diagnostics trigger before doing any work;
+    /// Release returns nil and does no work.
     private func journeyDiagnostics(for station: FuelStation, baseline: FuelStation?) -> FuelSavingsJourneyDiagnostics? {
         #if DEBUG
-        guard let location else { return nil }
+        guard FuelStore.loadDebugMode(), let location else { return nil }
         let stationDistance = FuelStore.roadDistanceDiagnostics(for: station, userLat: location.lat, userLng: location.lng)
         let baselineDiagnostics = baseline.map { FuelStore.roadDistanceDiagnostics(for: $0, userLat: location.lat, userLng: location.lng) }
         let journey = savingsJourneyMiles(for: station, location: location)