Three crews from the Lincoln Fire Station attended.
"It has been left in the hands of police," the spokesman said.
It is still unclear how the fire started.
A police spokeswoman said they were called to assist with road closures from about 11.45am.
Both lanes of the SH were blocked while emergency services were at the scene but one lane has since opened up and traffic are being let through slowly, she said.
The Traffic Operations Centre has been notified to clean up debris off the road and a tow wagon arrived just after 1.15pm to remove the vehicle.
