Service bulletins for the 2018 GMC Terrain
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.
1345 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Radiator are shown. Show all
| 19NA098 | 2020-03-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; EQUIPMENT. This technical bulletin provides a procedure to add flocking to tape the radiator mount sleeves to reduce the knocking noise caused by the excessive movement. |
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| 19NA104 | 2019-07-29. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area. |
| PIT5678A | 2019-07-08. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This Preliminary information communicates an issue with the radiator lower mount that sounds as if it is coming from behind the front wheels. |
| 19NA098 | 2019-07-01. Service bulletin. STRUCTURE; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This technical bulletin provides a procedure to add flocking tape the radiator mount sleeves to reduce the knocking noise caused by the excessive movement. |
| PIT5578A | 2019-04-08. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This Preliminary information communicates the need to replace the heater hose clamps anytime the heater hoses are serviced. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.