Twelve cases have been reported in the last fortnight, with ten of them involving female drivers or passengers in parked cars. Seven of the hijackings happened in the south of the city.
"Those that are involved, my message to them is: 'You will be caught and you will be brought before the courts'," PSNI Chief Superintendent Alan McCrum said on Tuesday.
It comes after three more incidents on Monday became the latest in a string of attacks.
They are not going to get away with it, because we are going to hunt them down.
PSNI Chief Superintendent Alan McCrum
Among those targeted was a nurse who believes she narrowly escaped having her car taken from her by two teenagers as she drove home from where she works at Musgrave Hospital.
They tried to open her door as she stopped at traffic lights at Stockman's Lane, but she was able to drive off onto the motorway.
"I'd been listening to the Frank Mitchell Show that morning and just decided I must lock my doors," she told UTV.
"Literally three seconds later at the red light, somebody was grabbing the car door and they thumped the window ..."
"It was over in a matter of seconds, but it was terrifying. I'm shaking just thinking about it. Thankfully I had the car doors locked, because I dread to think what would have happened if I hadn't."
The wave of hijackings has also prompted the PSNI's Deputy Chief Constable Judith Gillespie to speak out on the issue in her official blog.
"Thousands of motorists travel safely along our roads daily - that said, we are very concerned about the recent spate of incidents," she said.
Police are following a number of lines of enquiry - including the possible involvement of west Belfast crime gangs - given that five of the vehicles taken have been found in that part of the city.
But officers still insist there is no evidence that the crimes are linked.
The Policing Board has called for the PSNI to report to them on Thursday on the action being taken in response to the crimes.
We have increased our resources in the city centre and have implemented a comprehensive pro-active police operation to prevent these crimes taking place, investigate, detect and arrest those responsible and put them before the courts.
PSNI Deputy Chief Constable Judith Gillespie
"People are rightly completely outraged by the spate of car hijackings in and around Belfast," a spokesman said.
"The seemingly random nature of the attacks means there is a fear in the wider community."
Police are urging drivers to be safety aware and to take steps to make such attacks more difficult.
They advise keeping doors locked and windows closed enough to prevent anyone reaching into the car. Valuables should be kept out of sight - either under seats, in the glove box or in the boot.
While drivers must stop for police, they should ask for identification through a closed window before turning off the engine or getting out of the car.
If concerned by an approach, police say motorists should sound their horn or alarm and flash their lights to attract attention.
Drivers should try to park in well-lit busy areas or car parks and should not leave their engine running or keys unattended in the ignition - even if there is a passenger in the vehicle.
Latest Hijackings
Mon January 16 (9.15pm) - woman targeted at Donegall Street, south Belfast.
Three men demand a woman hand over her car keys before making off in her silver ford Fiesta. Woman not injured, but badly shaken. Car crashed and abandoned at Norglen Parade, west Belfast.
Mon January 16 (9.15pm) - woman targeted at Stockman's Lane, south Belfast.
Possible attempted hijacking when two teenage boys try opening the door of a car stopped at traffic lights. Woman quickly locked doors and youths made off.
Mon January 16 (5.15pm) - woman targeted off Lisburn Road, south Belfast.
Boy in late teens orders woman out of parked car, then drives off with her inside before passers-by intervene. Teenager and two others make off in direction of Fane Street, south Belfast. Woman badly shaken.
Fri January 13 (9pm) - woman targeted at Grosvenor Road, west Belfast.
Man in early 20s tries to pull woman from her car before stealing property from back seat when she resists.
Fri January 13 (7.30pm) - man targeted at Eskdale Gardens, north Belfast.
Men bundle victim into back of his car, drive a short distance and assault him. Car discovered on fire at Rosapenna Street, north Belfast.
Fri January 13 (7.30am) - woman targeted at John Street, west Belfast.
Man in hooded top orders woman out of her Toyota Auris and a struggle takes place. Woman escapes injury, but car taken and not yet recovered.
Thurs January 13 (6.20pm) - Man targeted at Hopewell Place, north Belfast.
Taxi driver threatened with screwdriver by three men he'd driven from Dollingstown Keys stolen as men make off towards the Shankill. Driver shaken and taxi windows smashed.
Mon January 9 (4.40pm) - woman targeted at Chadwick Street, south Belfast.
Four men drag woman from blue Porsche Boxster. Woman uninjured, but badly shaken. Car later found on fire at Albert Street, west Belfast.
Fri January 6 (2.30pm) - woman targeted at North Street, south Belfast.
Woman ends up in hospital for treatment after being pushed out of the passenger seat of her husband's black Peugeot 308 by three men and dragged a few feet down the road. Car later found abandoned at Fallswater Street, west Belfast.
Thurs January 5 (11.10am) - woman targeted at Hardcastle Street, south Belfast.
Two men threaten woman in passenger seat of parked silver Renault Megane, Woman uninjured, but car stolen and found burnt out at Ross Street, west Belfast.
Wed January 4 (4.30pm) - woman targeted at Rugby Road, south Belfast.
Teenager armed with a broken bottle hijacks a woman's car outside a nursery. Car found abandoned at Ardoyne Road, north Belfast. Fifteen-year-old boy charged and bailed.
Tues January 3 (1pm) - woman targeted at Shankill Road, north Belfast.
Woman hit in face and forced from passenger seat of parked blue Ford Fiesta by hooded man. Woman not seriously injured and car found abandoned at Roden Street, west Belfast.