My CR-V presents itself with a loud grinding noise at start, caused by a defective, vtc actuator which is referenced in Honda service bulletin 09-010. This problem began in 2008, and is on going. This defect seriously affects resale value, and potentially can cause catastrophic engine failure. This repair should be covered by Honda's 60K power train warranty, but Honda says at the current time there is no fix for this problem, which they have been working on for several years. I have contacted my dealer and Honda usa numerous times without resolution, as the frequency and intensity of the problem worsens. There are numerous unresolved complaints and videos on the internet about this defect. I have consulted a lemon law attorney, but because Honda makes no effort to repair the problem, it doesn't qualify.

- Chester Springs, PA, USA

This problem has occurred now a total of about six times. The first time was in the spring or summer of 2014, when my car was slightly more than two years old. Generally speaking, what happens is this. When the car is idling or at low speed (in a traffic jam once, slowing for a red light, idling in a driveway, etc.), three engine lights come on. The car then bucks at low speeds and has very little power when accelerating from a stop. When driving, it slowly increases in speed and then, at about 30 mph, starts behaving normally. Basically it acts like it hasn't downshifted and is in too high a gear. On one occasion, on the highway, it seemed also to be struggling to go 60 mph, as if in too low a gear. I had the car looked at in October of 2014, after it happened two more times in quick succession. They were unable to replicate the issue or determine what it was, but updated the car's software. The problem didn't recur until June of 2015. It's now happened twice more in quick succession, and I intend to have it serviced again. Clearly this is a big problem because when the issue occurs the car is unable to accelerate at all quickly. Trying to merge onto a highway under such circumstances is dangerous. The problem eventually resolves itself after you go through several cycles of driving the car, turning it off, driving it again for a while, turning it off, etc. The car's misbehavior lessens and then stops, and eventually the engine lights turn off.

- North Haven, CT, USA

I was in my 2012 Honda CRV pulling into a parking spot to park when I experienced unintended acceleration. The car would not stop even after hitting the brakes hard but rather sped up causing me to hit the side mirror of a parked car. Finally I turned to avoid another collision and was able to slow the car down that way.

- Robbinsville, NJ, USA

The heater in this car blows cold air and it is nearly impossible to warm up during long commutes even when the fan and heat adjustments are on high. It has not improved during the past three months of cold weather and it doesn't do any good to purchase an AWD vehicle when the heat doesn't even work.

- Monroe, OH, USA