Skip the auto shop - Our mechanics make house calls

Q: SUV won't accelerate properly after 2 hours of driving

asked by on

After driving at higher speeds on the interstate for over 2 hours, I can't accelerate properly. For example, it won't rev over 2000 RPMs and slows to almost 50 going uphill. It's dangerous when I need to quickly accelerate like when an 18-wheeler is tailing me. I can put it in Neutral and that works great, so this only happens in Drive. There aren't any warning lights, nor any displays. Naturally the dealership can't drive for 2 hours, so they can't see what happens. What will solve this dilemma?

The CVT transmission on the vehicle may go into what is called ’transmission safe mode’ if it is overheating. The safe mode will cause low engine power, and limited shifting of the CVT system. This could be caused by incorrect transmission fluids or the engine coolant is not the correct mixture of coolant and water. If the condenser in front of the radiator has limited air flow the temperature will rise, causing the transmission to go into the fail safe mode. Have the transmission fluid and coolant serviced using the correct fluids recommended by Nissan only. Have the cooling system checked for proper operation. Perform technical bulletin NTB 14-002C for installing an extra transmission cooler to keep the problem from happening again. If you need assistance with this, have a qualified technician, such as one from YourMechanic, inspect your car’s acceleration issue and make the necessary repairs for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. SUV won't accelerate properly after 2 hours of driving

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Vehicle does not move when put into gear

A vehicle that won't move in any gear indicates either the transmission is low on fluid, or there is an internal problem. The electronic transmission controls can essentially be ruled out. The 4F50N transmission found in your vehicle has some...

Q: How do I store the rear center seat belt?

The rear center seat belt can be stored in the retractor base, which is located on the ceiling. When you are planning to fold down the rear seats, you should store the rear center seat belt by following these steps:...

Q: Oil presure light

Hello. You should not have to reset anything related to the oil pressure after servicing the vehicle. If the light is coming on then that is a sign that there is an issue with the engine's oil pressure or an...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.