diff --git a/Auto_Seat.ino b/Auto_Seat.ino
index 9167f49..051b99d 100644
--- a/Auto_Seat.ino
+++ b/Auto_Seat.ino
@@ -622,6 +622,7 @@ void printStatus(const __FlashStringHelper *tag) {
   Serial.print(forceCalibration ? 1 : 0);
   Serial.print(F(" autoCalState="));
   Serial.println(autoCalibrationState);
+  printAutoCalibrationDelayStatus();
 }
 
 void printUptime() {
@@ -644,6 +645,48 @@ void printUptime() {
   Serial.println(F("ms"));
 }
 
+void printAutoCalibrationDelayStatus() {
+  if (useCount < USES_BEFORE_AUTO_CALIBRATION) {
+    return;
+  }
+
+  Serial.print(F("autoCalOffTimer="));
+  if (ignitionState == HIGH) {
+    Serial.println(F("waiting_for_ig_off"));
+    return;
+  }
+
+  unsigned long elapsedMs = millis() - ignitionOffStartTime;
+  unsigned long remainingMs = 0;
+  if (elapsedMs < AUTO_CALIBRATION_DELAY_MS) {
+    remainingMs = AUTO_CALIBRATION_DELAY_MS - elapsedMs;
+  }
+
+  Serial.print(F("elapsed "));
+  printDuration(elapsedMs);
+  Serial.print(F(" remaining "));
+  printDuration(remainingMs);
+  Serial.println();
+}
+
+void printDuration(unsigned long totalMs) {
+  unsigned long hours = totalMs / 3600000UL;
+  totalMs %= 3600000UL;
+  unsigned long minutes = totalMs / 60000UL;
+  totalMs %= 60000UL;
+  unsigned long seconds = totalMs / 1000UL;
+  unsigned long milliseconds = totalMs % 1000UL;
+
+  Serial.print(hours);
+  Serial.print(F("h "));
+  Serial.print(minutes);
+  Serial.print(F("m "));
+  Serial.print(seconds);
+  Serial.print(F("s "));
+  Serial.print(milliseconds);
+  Serial.print(F("ms"));
+}
+
 void setRelay(int relayPin, boolean state) {
   digitalWrite(relayPin, state ? LOW : HIGH);
 }
diff --git a/README.md b/README.md
index cfbbf24..ae17a38 100644
--- a/README.md
+++ b/README.md
@@ -86,6 +86,18 @@ Every status output includes boot uptime:
 uptime=0h 2m 13s 457ms
 ```
 
+If the use counter reached 10, status/debug output also includes the ignition-off calibration timer:
+
+```text
+autoCalOffTimer=elapsed 0h 1m 20s 123ms remaining 0h 3m 39s 877ms
+```
+
+If IG1 is still ON:
+
+```text
+autoCalOffTimer=waiting_for_ig_off
+```
+
 ## Automatic Calibration
 
 - Each `IG1 HIGH -> LOW` transition increments the EEPROM use counter.
diff --git a/report.html b/report.html
index b843482..9ded4c0 100644
--- a/report.html
+++ b/report.html
@@ -225,6 +225,7 @@ when currentPosMs <= 0:
     </table>
     <p><span class="warn">주의:</span> 명령은 한 글자만 받습니다. <code>debug</code>, <code>down</code>, <code>position 2000</code>처럼 긴 문자열은 실행하지 않습니다.</p>
     <p>모든 상태 출력에는 부팅 후 경과 시간이 <code>uptime=0h 2m 13s 457ms</code> 형식으로 포함됩니다. debug 출력에서도 1초마다 같은 형식으로 확인할 수 있습니다.</p>
+    <p>사용 횟수가 10회에 도달한 경우에만 보정 대기 타이머가 <code>autoCalOffTimer=elapsed 0h 1m 20s 123ms remaining 0h 3m 39s 877ms</code> 형식으로 추가 출력됩니다. IG1 ON 상태에서는 <code>autoCalOffTimer=waiting_for_ig_off</code>로 표시됩니다.</p>
 
     <h2>5. 수동 위치 세팅 시뮬레이션</h2>
     <table>