Cadillac Escalade Esv 2015–2017 — technical service bulletin
Bulletin PIP5678 · NHTSA communication 10165899 · issued Sep 23, 2019
Technical service bulletin
communication type
Power Train
component
2015–2017
model years
12
vehicle entries
Official summary
This Preliminary information communicates to the dealer technician that if they are unable to perform the solenoid characterization using the transmission unit number (TUN) off a replacement 8L90 RPO M5U automatic transmission to refer to the TUNs listed in this PI. If the TUN off the replacement transmission is listed they should refer to bulletin 18-NA-355 and perform a transmission fluid exchange due to possible fluid contamination. The dealer technician is to call technical assistance after the fluid exchange to get the TUN unlocked so they will then be able to complete solenoid valve char
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.