Police were called by the North West Ambulance Service at 6.22pm on February 28 to a report of a collision in Bolton-le-Sands.
An Audi A1 car was travelling southbound when it veered off the carriageway to the nearside, said paid.
The driver, a man in his 70s, was pronounced dead a short time later at Royal Lancaster Infirmary.
A Lancashire Police spokesman said: “Our thoughts are with his family at this difficult time and they are being supported by specially trained police officers.”
The road was shut for several hours to allow officers to examine the scene of the collision.
If anyone witnessed the incident or has dashcam footage from the area around the time, please email firstname.lastname@example.org or call 101 – quoting log 1082 of February 28, 2023.