S38 On/Off Vehicle Switch
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
There are 5 power modes to convey driver intent:
- OFF - A low power mode that allows maximum stand time until next start
- ACCY - Allows use of certain features that require operator authorization (Power windows for example). Propulsion is specifically disallowed.
- RUN - All features enabled except propulsion (motive force)
- PROPULSION - All features enabled
- START - This will transition to PROPULSION, including turning off non-essential loads to provide additional power for starting.
Power Mode States
| Customer Action | Expected Vehicle Power Mode | S38 Vehicle On/Off Switch BCM Scan Tool Parameter | S38 Vehicle On/Off Switch Voltages |
|---|---|---|---|
| Vehicle OFF, S38 On/Off Vehicle Switch not pressed, Transmitter in Range | Vehicle Off Mode | Inactive | 1.4 - 3.0 V (Switch Pressed) 3.35 - 4.26 V (Switch Released) 4.5 - 5.0 V (Switch Disconnected) |
| Vehicle OFF, S38 On/Off Vehicle Switch not pressed, Transmitter out of Range/Away from vehicle | Vehicle Off Mode | Inactive | |
| Vehicle in any Power Mode EXCEPT OFF, then Press the S38 On/Off Vehicle Switch Foot On or Off the Brake Pedal, Transmitter in Vehicle | Vehicle Off Mode | Active (pushed) / Inactive (not pushed) | |
| Vehicle in Propulsion Mode, momentarily Press and Release the S38 On/Off Vehicle Switch Foot On or Off the Brake Pedal, Transmitter out of Range/Away from vehicle | Run Mode, With DIC Message No Remote Detected Press Brake to Restart | Active (pushed) Inactive (not pushed) | |
| Vehicle Off Power Mode, then Press the S38 On/Off Vehicle Switch for less than 5 s with foot Off the Brake Pedal; Transmitter in Vehicle | Vehicle Accessory Mode | Active (pushed) / Inactive (not pushed) | |
| Vehicle Off Power Mode, then S38 On/Off Vehicle Switch with foot On the Brake Pedal; Transmitter in Vehicle | Vehicle Start/Propulsion Mode (vehicle cranks then engine running (for Internal Combustion Engine) or Propulsion System Active for EV) power mode timeout is enabled | Active (pushed) / Inactive (not pushed) | |
| Vehicle Off Power Mode, then S38 On/Off Vehicle Switch with foot On the Brake Pedal for 5 to 10 s; Transmitter in Vehicle | Vehicle Start/Propulsion Mode (vehicle cranks then Propulsion Mode Active) power mode timeout will be disabled. | Active (pushed) / Inactive (not pushed) | |
| Vehicle OFF Power Mode, then Press and Hold the S38 On/Off Vehicle Switch for 5 s with foot Off the Brake Pedal; Transmitter in Vehicle | Vehicle Run Mode (Ignition ON without the Propulsion system Active) | Active (pushed) / Inactive (not pushed) | |
| Vehicle OFF Power Mode, then Press and Hold the S38 On/Off Vehicle Switch for 5 s with foot Off the Brake Pedal; Transmitter in Vehicle | Vehicle Start/Propulsion Mode (vehicle cranks then Propulsion Active) power mode timeout is disabled | Active (pushed) / Inactive (not pushed) | |
| Vehicle Propulsion Mode with vehicle speed detected above 4 km/h (2.5 MPH) press and hold S38 On/Off Vehicle Switch for 2 s or press and release it 2 times within 5 S. | Vehicle will transition from Propulsion Mode to Run Mode (Ignition On Propulsion system Inactive). | Active (pushed) / Inactive (not pushed) | |
| NOTE: If the transmitter is not moved for more than 1 hour it will become inactive. | |||