Engine Exhaust; Running The Vehicle While Parked; Automatic Transmission - Cadillac CT4 2023 Owner's Manual

Automatic Transmission

The timer will reset if the vehicle is taken
out of P (Park) while it is running.
Manual Transmission
The timer will reset if vehicle speed exceeds
4 km/h (2.5 mph).

Engine Exhaust

Warning
Engine exhaust contains carbon monoxide
(CO), which cannot be seen or smelled.
Exposure to CO can cause
unconsciousness and even death.
Exhaust may enter the vehicle if:
The vehicle idles in areas with poor
ventilation (parking garages, tunnels,
deep snow that may block underbody
airflow or tail pipes).
The exhaust smells or sounds strange
or different.
The exhaust system leaks due to
corrosion or damage.
Warning (Continued)
The vehicle exhaust system has been
modified, damaged, or improperly
repaired.
There are holes or openings in the
vehicle body from damage or
aftermarket modifications that are not
completely sealed.
If unusual fumes are detected or if it is
suspected that exhaust is coming into the
vehicle:
Drive it only with the windows
completely down.
Have the vehicle repaired immediately.
Never park the vehicle with the engine
running in an enclosed area such as a
garage or a building that has no fresh air
ventilation.

Running the Vehicle While Parked

It is better not to park with the engine
running. See Engine Exhaust 0 209.
(Continued)
Driving and Operating
If the vehicle is left with the engine running,
follow the proper steps to be sure the
vehicle will not move. See Shifting Into Park
(Mechanical Shifter) 0 206 or Shifting Into
Park (Electronic Shifter) 0 206 and Electric
Parking Brake 0 220.
Automatic Transmission
Automatic Transmission
(Mechanical Shifter)
There are several different positions for the
shift lever.
P : This position locks the drive wheels. Use
P (Park) when starting the vehicle to ensure
the vehicle does not move.
209