What Causes an Automatic Transmission Car to Suddenly Stop Moving When Reversing?
1 Answers
There are several possible reasons why an automatic transmission car may stop moving when reversing: Accidental Activation of the Auto Hold Function: This feature enhances safety when waiting at traffic lights or crossing pedestrian crossings by preventing the car from moving without pressing the accelerator. Once the auto hold function is deactivated, releasing the brake will allow the car to move forward or reverse. Electronic Parking Brake Not Released or Improper Gear Engagement: If the electronic parking brake is not released or the gear is not properly engaged, the reverse gear may not function. Releasing the electronic parking brake and adjusting the gear engagement method can resolve this issue. Transmission Problems: Internal transmission faults may occur. First, check if the transmission fluid level is too low and whether the main oil pressure and gear oil pressure are normal. Then, verify if the gear switch signal is normal, if the wiring from the transmission computer to the shift solenoid valve is intact, and if the gear solenoid valve is functioning properly. If all these components are in order, it indicates an issue with the internal control system of the transmission, requiring disassembly to inspect the internal actuators.