Engine Fan
The vehicle has electric cooling fans. The fans spinning at low speed during most everyday driving might be heard. The fans can turn off if no cooling is required. Under heavy vehicle loading, trailer towing, and/or high outside temperatures, or if operating the air conditioning system, the fans can change to high speed and an increase in fan noise might be heard. This is normal and indicates that the cooling system is functioning properly. The fans change to low speed when additional cooling is no longer required.
See also:
Inside the LFX
The Cadillac SRX's new LFX 3.6L direct-injected V-6 delivers an SAE-certified
308 horsepower (230 kW) and 265 lb.-ft. of torque (359 Nm), with
efficiency-enhancing features including direct inject ...
Passing Another Vehicle While Using Cruise Control
Use the accelerator pedal to increase the vehicle speed. When you take your foot
off the pedal, the vehicle will slow down to the previous set cruise speed. ...
AM-FM Radio
Notice: Before adding any sound equipment to the vehicle, such as an audio system,
CD player, CB radio, mobile telephone, or two-way radio, make sure that it can be
added by checking with your dea ...