When is the 2019 Grand Cherokee drive belt replaced?
When cracks run along a rib, or when the belt is worn, frayed, glazed, chunked, slipping, or noisy. Cracks across the ribs are normal.
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In-depth guide
2019 Jeep Grand Cherokee
2019 Grand Cherokee accessory belt cracks across the ribs are normal. Cracks along a rib require replacement. Do not inspect the belt with the engine running.
| Item | Figure |
|---|---|
| Across the ribs | Small cracks that run across the ribbed surface, from rib to rib, are normal and are not a reason to replace the belt. |
| Along a rib | Cracks running along a rib must be replaced. Also replace the belt for excessive wear, frayed cords, or severe glazing. |
| Other reasons | Rib chunking, rib or belt wear, longitudinal cracking, belt slip, groove jumping, a broken belt, or noise while the belt is operating. |
Source: owner's manual / last verified 2026-10-16 (2019 Jeep Grand Cherokee owner's manual, publication 19WK-126-AB, copyright 2018 FCA US LLC. This is the Grand Cherokee book, not the SRT book. (opens in a new tab)).
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: 2019 Jeep Grand Cherokee owner's manual, publication 19WK-126-AB, copyright 2018 FCA US LLC. This is the Grand Cherokee book, not the SRT book. (opens in a new tab), FCA US LLC, published 2018-01-01, read 2026-10-16.
| Item | Figure | Where it comes from |
|---|---|---|
| Across the ribs | Small cracks that run across the ribbed surface, from rib to rib, are normal and are not a reason to replace the belt. | Accessory drive belt inspection |
| Along a rib | Cracks running along a rib must be replaced. Also replace the belt for excessive wear, frayed cords, or severe glazing. | Accessory drive belt inspection |
| Other reasons | Rib chunking, rib or belt wear, longitudinal cracking, belt slip, groove jumping, a broken belt, or noise while the belt is operating. | Accessory drive belt inspection |
The warning is about a moving belt and a fan that can start on its own.
Cracks across the ribs are normal. No tension number and no part number are printed.
Engine oil is on the oil guide.
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Part
Accessory drive belt
No length, part number, or tension figure is printed.
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When cracks run along a rib, or when the belt is worn, frayed, glazed, chunked, slipping, or noisy. Cracks across the ribs are normal.
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These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.
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