Technical Service Bulletin 21NA229 — 2020 CADILLAC XT4
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | 21NA229 |
| Manufacturer | |
| Vehicle | 2020 CADILLAC XT4 |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
This service bulletin provides a procedure to install a winter grille cover to correct the customer concerns of Poor Engine Performance in Extremely Cold Weather Conditions, Charge Air Cooler Icing, Malfunction Indicator Lamp (MIL) Illuminated.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
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