This bulletin applies to 2014 Chevy Spark EV vehicles. The technician may report an intermittent whine, howl, hum or buzz noise or vibration during regenerative braking or when backing up. P0618 may be set current or in history.
Check to see if the Hybrid Powertrain Control Module (HPCM) T6 software can be updated (drive motor generator power inverter module reprogramming) using the Service Programming System (SPS) via Techline Information System (TIS1Web).
This bulletin applies to 2014 Chevy Spark EV vehicles. The technician may report an intermittent whine, howl, hum or buzz noise or vibration during regenerative braking or when backing up. P0618 may be set current or in history.
According to Chevy, do not replace the transmission for this concern, or if the ATF is dark in color. Check to see if the Hybrid Powertrain Control Module (HPCM) T6 software can be updated (drive motor generator power inverter module reprogramming) using the Service Programming System (SPS) via Techline Information System (TIS1Web).
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
