diff --git a/src/vehicles.rs b/src/vehicles.rs
index e41d40a..7dc430f 100644
--- a/src/vehicles.rs
+++ b/src/vehicles.rs
@@ -266,13 +266,13 @@ pub struct ClimateState {
     pub auto_seat_climate_right: Option<bool>,
     pub battery_heater: bool,
     pub battery_heater_no_power: Option<bool>,
-    pub cabin_overheat_protection: String,
+    pub cabin_overheat_protection: CabinOverheatProtection,
     pub cabin_overheat_protection_actively_cooling: Option<bool>,
     pub climate_keeper_mode: String,
     pub defrost_mode: i64,
     pub driver_temp_setting: f64,
     pub fan_status: i64,
-    pub hvac_auto_request: String,
+    pub hvac_auto_request: HvacAutoRequest,
     pub inside_temp: Option<f64>,
     pub is_auto_conditioning_on: Option<bool>,
     pub is_climate_on: bool,
@@ -302,6 +302,23 @@ pub struct ClimateState {
     pub steering_wheel_heat_level: Option<i64>,
 }
 
+#[derive(Debug, Clone, Copy, Display, Deserialize, Serialize, PartialEq)]
+pub enum CabinOverheatProtection {
+    Off,
+    On,
+    FanOnly,
+    #[serde(other)]
+    Unknown,
+}
+
+#[derive(Debug, Clone, Copy, Display, Deserialize, Serialize, PartialEq)]
+pub enum HvacAutoRequest {
+    Override,
+    On,
+    #[serde(other)]
+    Unknown,
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct DriveState {
     /// From https://developer.tesla.com/docs/fleet-api#vehicle_data