diff --git a/consts.go b/consts.go
index 3ab8203..b68296a 100644
--- a/consts.go
+++ b/consts.go
@@ -167,6 +167,14 @@ var modelCodes = map[string]string{
 	"PCL": "Ascent Limited 7-Passenger",
 }
 
+var badValues = map[string]any{
+	"remainingFuelPercent": 101,
+	"tyreStatusFrontLeft":  "UNKNOWN",
+	"tyreStatusFrontRight": "UNKNOWN",
+	"tyreStatusRearLeft":   "UNKNOWN",
+	"tyreStatusRearRight":  "UNKNOWN",
+}
+
 const (
 	GET  = "GET"
 	POST = "POST"
@@ -301,7 +309,7 @@ const (
 	ERROR_G1_INVALID_PIN             = "SXM40006"
 	ERROR_G1_SERVICE_ALREADY_STARTED = "SXM40009"
 	ERROR_G1_PIN_LOCKED              = "SXM40017"
-	VEHICLE_ATTRIBUTES               = "attributes" //Controller Vehicle Data Dict Keys
+	VEHICLE_ATTRIBUTES               = "attributes" // Controller Vehicle Data Dict Keys
 	VEHICLE_STATUS                   = "status"
 	VEHICLE_ID                       = "id"
 	VEHICLE_NAME                     = "nickname"