diff --git a/main/admin.py b/main/admin.py
index 6da2ba2..6cd7a41 100644
--- a/main/admin.py
+++ b/main/admin.py
@@ -46,13 +46,14 @@ class DefectInline(admin.TabularInline):
         "solution_date",
         "reporter_name",
         "status",
+        "severity",
     )
     readonly_fields = ["creation_date", "solution_date"]
 
 
 @admin.display(description="Nombre d'anomalies ouvertes")
 def open_defect_count(obj: Vehicle):
-    return obj.defect_set.filter(status=Defect.DefectStatus.OPEN).count()
+    return obj.open_defects.count()
 
 
 @admin.register(Vehicle)
diff --git a/main/fixtures/main/initial_data.json b/main/fixtures/main/initial_data.json
index be7b76c..0ebe18d 100644
--- a/main/fixtures/main/initial_data.json
+++ b/main/fixtures/main/initial_data.json
@@ -80,7 +80,6 @@
   "pk": 1,
   "fields": {
     "vehicle": "94deae57-cbac-4911-bcdf-14aa4b10448d",
-    "type": "engine",
     "status": "OPEN",
     "creation_date": "2024-05-28",
     "solution_date": null,
@@ -93,11 +92,11 @@
   "pk": 2,
   "fields": {
     "vehicle": "3a8798e8-c193-4e75-868c-982e2f24b576",
-    "type": "bulb",
-    "status": "OPEN",
+    "status": "CONFIRMED",
     "creation_date": "2024-05-28",
     "solution_date": null,
-    "comment": "Clignotant AVG",
+    "comment": "Clignotant AVG non fonctionnel",
+    "severity": "MAJOR",
     "reporter_name": "Baptiste"
   }
 },
@@ -106,7 +105,6 @@
   "pk": 3,
   "fields": {
     "vehicle": "3a8798e8-c193-4e75-868c-982e2f24b576",
-    "type": "bulb",
     "status": "SOLVED",
     "creation_date": "2024-05-28",
     "solution_date": null,
diff --git a/main/migrations/0015_defect_severity.py b/main/migrations/0015_defect_severity.py
new file mode 100644
index 0000000..fda275d
--- /dev/null
+++ b/main/migrations/0015_defect_severity.py
@@ -0,0 +1,24 @@
+# Generated by Django 5.2.8 on 2026-06-23 13:12
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("main", "0014_remove_defect_type"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="defect",
+            name="severity",
+            field=models.CharField(
+                blank=True,
+                choices=[("MAJOR", "Majeure"), ("MINOR", "Mineure")],
+                max_length=255,
+                null=True,
+                verbose_name="gravité",
+            ),
+        ),
+    ]
diff --git a/main/models.py b/main/models.py
index 40f6fc8..8455cf8 100644
--- a/main/models.py
+++ b/main/models.py
@@ -87,6 +87,13 @@ def public_url(self) -> str:
     def __str__(self):
         return self.name
 
+    @property
+    def open_defects(self) -> models.QuerySet[Defect]:
+        return self.defect_set.filter(
+            models.Q(status=Defect.DefectStatus.OPEN)
+            | models.Q(status=Defect.DefectStatus.CONFIRMED)
+        )
+
 
 class Defect(models.Model):
     class Meta:
@@ -98,10 +105,17 @@ class DefectStatus(models.TextChoices):
         SOLVED = "SOLVED", _("Résolu")
         CANCELLED = "CANCELLED", _("Annulé")
 
+    class DefectSeverity(models.TextChoices):
+        MAJOR = "MAJOR", _("Majeure")
+        MINOR = "MINOR", _("Mineure")
+
     vehicle = models.ForeignKey(Vehicle, on_delete=models.CASCADE)
     status = models.CharField(
         _("statut"), max_length=255, choices=DefectStatus, default=DefectStatus.OPEN
     )
+    severity = models.CharField(
+        _("gravité"), max_length=255, choices=DefectSeverity, null=True, blank=True
+    )
     creation_date = models.DateField(_("date de création"), auto_now_add=True)
     solution_date = models.DateField(
         _("date de résolution"), null=True, blank=True, editable=False
diff --git a/main/static/css/main.css b/main/static/css/main.css
index 2d38ebe..825e7f6 100644
--- a/main/static/css/main.css
+++ b/main/static/css/main.css
@@ -38,4 +38,30 @@ input:not([type=submit], [type=button], [type=reset])[readonly] {
 a {
     margin-top: var(--spacing);
     margin-bottom: var(--spacing);
+}
+
+.status-tag {
+    padding: 5px 20px;
+    border-radius: 20px;
+    white-space: nowrap;
+    font-size: 20px;
+    font-weight: var(--font-weight);
+    line-height: var(--line-height);
+    color: var(--contrast);
+    margin-left: var(--spacing);
+}
+
+.status-operational {
+    color: #1bc5bd;
+    background-color: #c9f7f5;
+}
+
+.status-in_repair {
+  color: #f64e60;
+  background-color: #ffe2e5;
+}
+
+.status-out_of_order {
+  color: #f64e60;
+  background-color: #ffe2e5;
 }
\ No newline at end of file
diff --git a/main/templates/main/vehicle_detail.html b/main/templates/main/vehicle_detail.html
index 795f36b..99572a7 100644
--- a/main/templates/main/vehicle_detail.html
+++ b/main/templates/main/vehicle_detail.html
@@ -2,13 +2,22 @@
 {% block title %}{{ block.super }} - {{ vehicle.name }}{% endblock %}
 {% block body %}
     <main class="container">
-        <h1>{{ vehicle.name }}</h1>
-        {% if trip_started %}<p class="warning">Un trajet est en cours, pensez à le clôturer avant d'en commencer un nouveau</p>{% endif %}
+        <h1>{{ vehicle.name }} <span class="status-tag status-{{ vehicle.status|lower }}">{{ vehicle.get_status_display }}</span></h1>
         {% if messages %}
-        {% for message in messages %}
-        <p {% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }}</p>
-        {% endfor %}
+            {% for message in messages %}
+                <p {% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }}</p>
+            {% endfor %}
+        {% endif %}
+        {% if trip_started %}
+        <p class="warning">Un trajet est en cours, pensez à le clôturer avant d'en commencer un nouveau</p>
         {% endif %}
+        {% for defect in open_defects %}
+            {% if defect.severity == "MAJOR" %}
+                <p class="warning"><strong>Anomalie connue :</strong>
+                    <br/>⚠️ {{ defect.comment }}
+                </p>
+            {% endif %}
+        {% endfor %}
         <details>
             <summary role="button">Détails du véhicule</summary>
             <section>
@@ -78,6 +87,7 @@ <h1>{{ vehicle.name }}</h1>
                         <tr>
                             <th>Commentaire</th>
                             <th>Statut</th>
+                            <th>Gravité</th>
                             <th>Date</th>
                         </tr>
                         </thead>
@@ -86,11 +96,11 @@ <h1>{{ vehicle.name }}</h1>
                             <tr>
                                 <td>{{ defect.comment }}</td>
                                 <td>{{ defect.get_status_display }}</td>
+                                <td>{{ defect.get_severity_display|default:"-"}}</td>
                                 <td>{{ defect.creation_date }}</td>
                             </tr>
                         {% endfor %}
                         </tbody>
-
                     </table>
 
                 </details>
diff --git a/main/views.py b/main/views.py
index 834e921..b7d952c 100644
--- a/main/views.py
+++ b/main/views.py
@@ -6,10 +6,8 @@
 import django.urls
 from django.contrib import messages
 from django.contrib.auth.mixins import LoginRequiredMixin
-from django.utils.translation import gettext as _
-import django.shortcuts
 from django.forms import BooleanField, HiddenInput, ModelForm
-from django.db.models import Q
+from django.utils.translation import gettext as _
 from django.views.generic import CreateView, DetailView, ListView, UpdateView
 
 from . import forms, models
@@ -31,10 +29,7 @@ def get_context_data(self, **kwargs):
         self.object: models.Vehicle
         context = super().get_context_data(**kwargs)
 
-        context["open_defects"] = context["vehicle"].defect_set.filter(
-            Q(status=models.Defect.DefectStatus.OPEN)
-            | Q(status=models.Defect.DefectStatus.CONFIRMED)
-        )
+        context["open_defects"] = context["vehicle"].open_defects.all()
 
         delegated_forms: dict[str, type[ModelForm]] = {
             "defect_form": forms.DefectForm,