This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.
So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.
The contact owns a 2003 Jeep Grand Cherokee. While driving with the cruise control set at 65 mph, the vehicle suddenly accelerated to 85 mph. The contact depressed the brake pedal, cancelled the speed control, and disconnected the cruise control button. The vehicle did not decelerate and the contact pulled off the road and turned off the vehicle. When the vehicle was restarted, all of the instrument panel lights illuminated. He turned off and restarted the vehicle again and it operated normally. He was able to drive home. The vehicle was taken to the dealer twice for the same failure. The throttle position sensor and crank vacuum hose were replaced after the first failure. The vehicle is currently back at the dealer for a diagnosis. The VIN, engine size, fuel system, number of cylinders were unknown. The current mileage was 55,000 and failure mileage was 53,800.
2003 Jeep Grand Cherokee Laredo the mode control located on the ventilation/air conditioning panel failed. The knob control functions in that it will shut the system/fan off but it will not divert the air to the passenger compartment and has stuck in the windshield vent position only. In addition the cruise control has malfunctioned in that when the cruise is turned on the light in the instrument cluster illuminates but when you try to set the speed control it does not function. I am not sure if these two situations are related but they both seem electrical. I will be taking it to the dealer to try and solve the difficulties.
The contact stated the speed kept increasing while using the cruise control. She tried to manually shut off the cruise control but the switch would not respond. She applied the brakes to turn off the cruise control. A local mechanic inspected the vehicle, and determined it was the throttle sensor. The vehicle has not been repaired.
While in cruise control driving up hill the vehicle automatically shifted gears and slowed down. The consumer contacted the dealer which said they knew nothing about that problem.
- Liberty, NY, USA
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- Lincoln, NE, USA