Service bulletins for the 2026 Jeep Grand Cherokee
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
274 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with type: Service campaign are shown. Show all
| 66D Combo Rev2 | 2026-10-16. Service campaign. ENGINE. Revised Customer Satisfaction Notification 66D – Spark Plugs - Dealer Notification |
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| 66D Combo Rev2 | 2026-10-16. Service campaign. ENGINE. Revised Customer Satisfaction Notification 66D – Spark Plugs - Dealer Notification |
| 66D Dealer | 2026-07-29. Service campaign. ENGINE. Spark Plugs The spark plugs insulator on approximately 48,000 of the above vehicles may break due to excessive cylinder pressure. This pressure can cause the spark plug's ceramic insulator to crack, leading to a rough running engine. If this issue is not resolved promptly, the broken fragments can fall into the cylinder and cause internal engine damage. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.