A spate of accidents and wet weather has prompted authorities to issue a plea to drivers to be careful on the roads.
They urge motorists to slow down, drive to the conditions and keep a safe distance from other vehicles.
A man was in a critical condition in hospital after a car rollover at Chambers Flat on Monday.
The man suffered serious head and abdominal injuries when he was thrown from the vehicle shortly before 6pm.
He had lost control, before veering across a median strip and onto the wrong side of the road.
The accident is one of a spate of crashes on Logan and Scenic Rim roads in recent weeks.
A car and trailer rolled on New Beith Road, Greenbank, on Thursday.
Accidents have been reported at Jimboomba, Buccan, Loganlea, Park Ridge South and Waterford West.
In one incident, two children were in a car which collided with a truck on the Mount Lindesay Highway at Jimboomba.
In another, a patient was taken to Logan Hospital in a stable condition after an accident on Friday.
The crash happened at the Logan Motorway on-ramp, Loganholme.
A Queensland Ambulance spokeswoman said a crew was called to the scene about 7.40pm.
A car hit a tree at Greenbank on Friday.
Paramedics were called to the crash about 8am. They transported a man to Princess Alexandra Hospital, Brisbane, in a stable condition.
With wet weather affecting the roads, RACQ's head of technical and safety policy, Steve Spalding, urged motorists to be cautious on the roads as conditions deteriorated.
"Our advice is to take extra care in the rain or on wet roads," Mr Spalding said.
"Roads can be slippery after long dry spells, and it's easy to lose control on a bend or when trying to stop sharply behind another vehicle."
It was essential to give yourself stopping room if something went wrong.
"Always maintain a safe distance from the car in front and lower your speed to the conditions.
"In rain and low light, always put your headlights on to make it easier for others to see you. Crashes can occur when visibility is low and vehicles blend into their surroundings."
