Investor Relations
TH | EN
Get Special Promotion Request a Quote Book Now
Quick Menu Icon Quick Menu

12/06/2026

Car Trouble on the Highway?

Share To

main-img

What to Do If Your Car Breaks Down on the Highway? Safe Response Steps You Should Know

Driving on the highway makes travel fast and convenient, but if something unexpected happens — a breakdown, engine stall, tire blowout, or engine trouble mid-drive — it can be a stressful experience.

If your car breaks down on the highway, the most important thing is the safety of the driver and passengers. This article walks through the correct steps to take when a car breaks down on the highway, to help minimize risk and maximize safety.


1. Stay Calm and Turn On Hazard Lights Immediately

If you notice something wrong — losing power, the engine stalling, or unusual noises — turn on your hazard lights right away to alert other drivers that your car is having trouble. Turning on hazard lights early reduces the risk of a secondary collision from vehicles behind you.

 

2. Gradually Pull Over to the Shoulder

If the car can still move, signal and gradually steer as far left onto the shoulder as possible.

Precautions:

  • Never brake suddenly
  • Avoid stopping in a driving lane
  • Try to stop somewhere clearly visible

If the car can't move at all, turn on hazard lights and wait for help immediately.

 

3. Wear a Reflective Vest (If Available)

Once safely stopped, put on a reflective vest so other drivers can see you clearly, especially at night or in rain. A reflective vest is a safety item worth always keeping in the car.

 

4. Set Out a Reflective Warning Triangle

Place a reflective warning triangle behind the car at an appropriate distance to warn other vehicles in advance.

Recommended distance:

  • At least 50–100 meters behind the car
  • At night or in poor visibility, place it further back as appropriate
  •  

5. Exit the Car and Stay in a Safe Location

If it's safe to exit, get all passengers out of the car and stand behind a barrier or in a safe area. Avoid standing directly in front of or behind the car. Staying inside a car stopped on the highway risks a collision from high-speed traffic.

 

6. Contact Emergency Assistance

Once in a safe location, contact relevant services such as:

  • The expressway control center
  • Highway rescue officers
  • Your insurance company
  • The car rental company (if using a rental car)
  • Emergency towing services

Provide the following information:

  • Location of the breakdown
  • Highway number
  • Direction of travel
  • Nature of the problem

Clear information helps responders reach you faster.

 

7. Don't Attempt to Repair the Car Yourself in the Traffic Lane

Even for minor issues like changing a tire, adding water, or checking the engine, don't attempt repairs yourself on the highway — the risk from high-speed passing traffic is too high. Wait for officials or professionals to handle it instead.


What Should You Do If a Rental Car Breaks Down on the Highway?

Rental car users should contact the rental provider immediately for guidance and assistance. Standards-compliant providers typically offer emergency assistance, towing, and replacement vehicles so customers can continue their journey conveniently. Choosing a rental company with strong after-sales service and 24-hour emergency assistance provides much greater peace of mind.


Summary

If your car breaks down on the highway, the most important things are: stay calm, turn on hazard lights, move to a safe location, and contact assistance quickly. Avoid repairing the car yourself in a risky area, and always prioritize passenger safety first.

Preparing before your trip — checking the car's condition, carrying emergency equipment, and having emergency contact numbers on hand — helps you handle unexpected situations more effectively.


FAQ

Q: If my car breaks down on the highway, should I stay inside the vehicle?
A: No — if it's safe to exit, get out along with all passengers and stand behind a barrier or in a safe area away from traffic, since staying inside the car risks a collision from high-speed vehicles.

 

Q: How far away should I place the warning triangle?
A: At least 50–100 meters behind the car, or further if it's nighttime or visibility is poor.

 

Q: Can I fix a small problem myself, like changing a tire, while on the highway?
A: It's not recommended. Even minor repairs carry high risk from passing traffic — wait for officials or a professional to help instead.


Contact Us for Rental Services

For professional rental services and further information, please contact our team through the following channels:

Tel: 02 291 8888, 087 559 1111
LINE: @kcar | Click Here

 

Rental Inquiry & Services

  • Long-Term Rental: Request a quotation | Click Here
  • Short-Term Rental: Request a quotation | Click Here
  • Customer Service: Have our staff contact you | Click Here
  • Promotions: View our latest promotions | Click Here