Cadillac Elr 2011–2016 — technical service bulletin
Bulletin PI0798A · NHTSA communication 10168213 · issued Oct 24, 2019
Technical service bulletin
communication type
Electrical System
component
2011–2016
model years
8
vehicle entries
Official summary
This preliminary information bulletin provides a procedure to correct a condition of a Check Engine Light with DTC P0C4A that Sets immediately after a repair to the High Voltage battery cooling system that involves draining/refilling of coolant.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.