NHTSA Complaint #11501160 — 2018 CHEVROLET VOLT

On Nov 21, 2022, after approximately of 10 minutes (5 miles of driving), while attempting to accelerate from a stop, the vehicle lost the ability to accelerate. The vehicle was in full EV mode in the middle of a busy intersection. The vehicle had a full charge (50+ EV range remaining or 100% total EV remaining). The driver attempted to press down more on the accelerator to no avail. After approximately 5-10 seconds, in the busy intersection, without the ability to make the vehicle accelerate, the driver noticed the vehicle jerk (which occurred 2-3 times) at which point the ICE turned on and provided power to the vehicle, allowing the driver to drive out of the intersection. After several minutes of driving, the driver noticed "Reduced propulsion warning" was noticed/illuminated in addition to "Check Engine Light". After this point, the driver noted that the propulsion felt approximately 20% of "normal propulsion". The driver was also concerned about the ability to drive up very small hills due to reduction of propulsion/power. Upon arrival at the destination (2-3 miles from incident), the vehicle was safely parked, the vehicle's codes were checked with an OBD2 code reader and 19 codes were noted. Given the manifestation and safety issue of the vehicle, the vehicle was towed to Quality Chevrolet in Escondido where it remains as of 1/10/23. The codes collected on 11/21/22 include the following: 1. P0A46, 2. P0AC4, 3. P1E00, 4. P1B0B, 5. P1B43, 6. P1E1E, 7. P0AC4, 8. P1E00, 9. P0A46, 10. P1AF0, 11. P1AF2, 12. P1B0B, 13. P1B43, 14. P1E1E, 15. P1E22, 16. P0A46, 17. P1B0B, 18. P1B43, 19. P1E1E. Per the OBD2 code reader, the primary code was P0A46 (Drive Motor 2 Position Sensor Performance). As of 1/9/23, the dealer has indicated that the primary problem is with the entire Transmission assembly which requires replacement. The replacement assembly is not in stock, is back-ordered and there is no ETA to receive the transmission assembly. The vehicle has 32243 miles on it.