2024 JEEP COMPASS Vehicle Speed Control Problems

The contact owns a 2024 Jeep Compass. The contact stated that the vehicle failed to start. The vehicle failed to accelerate as intended while driving at 35 MPH and started to decelerate unintendedly. The check engine and the throttle system warning lights were illuminated. The vehicle was taken to the local dealer, where it was test-driven, but the dealer was unable to duplicate the failure. The vehicle was taken back to the local dealer, who informed the contact about the stored codes. The vehicle was not diagnosed or repaired. The vehicle was taken to another local dealer, Clay Cooley Irving Chrysler Jeep Dodge Ram (815 E Camp Wisdom Rd, Duncanville, TX 75116), where it was diagnosed and determined that a cell was dead and there was an auxiliary battery failure. The vehicle was repaired, but the failure reoccurred. The manufacturer was not contacted. The failure mileage was approximately 13,000.

Speedometer calibration off by3.5% . This affects, displayed fuel economy. Showed higher than actual. Also affects correct speed control setting. Checked with GPS and traffic control police radar.