Cadillac Escalade 2020–2021 — technical service bulletin
Bulletin 23-NA-043 · NHTSA communication 10235766 · issued Apr 19, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020–2021
model years
9
vehicle entries
Official summary
This service bulletin provides a procedure to replace the valve lifter and guides to correct customer concerns of Poor Engine Performance, Engine Misfires, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308 Set.
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.