Ineos Grenadier 2024–2025 — technical service bulletin
Bulletin IATSB004512v4 · NHTSA communication 11037110 · issued Aug 27, 2026
Technical service bulletin
communication type
Electrical System
component
2024–2025
model years
4
vehicle entries
Official summary
The HVAC only providing hot air through vents when cold air has been selected
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.