NHTSA Complaint #11423287 — 2017 CHEVROLET CRUZE

Cylinder 1 experienced cracking due to Low Speed Pre-Ignition (LSPI, commonly referred to as “Knock”) just after exiting the highway in a 70 mph zone and produced a Malfunction Indicator Lamp (MIL) code of P0301. As evidenced in Attachment 1, this caused damage to the Antilock Braking System due to loss of vacuum on the system and possible fouling due to foreign object damage to the vehicle ABS. Later assessment by trained mechanics determined the root cause was due to insufficient structural capability of engine pistons to withstand brief periods of LSPI. As evidenced by attachment 18-NA-171 and PIP5490, the vehicle manufacturer (General Motors) is aware of the insufficient design of the pistons, has re-designed them to withstand LSPI, however has not made an effort to notify me or replace the existing part to prevent damage to the vehicle powertrain and ABS. While this particular instance of piston cracking due to LSPI has only had a financial impact on myself, loss of ABS functionality and potential engine seizure at highway speeds have the potential to produce dangerous, if not fatal, conditions to other drivers with similar hardware.