Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2025TRAVERSE HIGH COUNTRY, FWDREPAIR AND DIAGNOSISGENERAL INFORMATIONBRAKESMAP - BRAKE SYSTEMSBRAKE SYSTEMSDRUMS
2025 Chevrolet Traverse High Country, FWD
Brake Systems: Drums
2025 Chevrolet Traverse High Country, FWDSECTION Drums
NOTE:
Determine the need to recondition based upon individual drum conditions that follow. Friction material replacement does not require drum reconditioning unless other justifications exist. Do not recondition new drums unless they are being pressed or bolted onto an existing hub. It is not necessary to replace drums in axle sets. However, when replacing or reconditioning a drum due to the conditions that follow, you may suggest reconditioning of the other drum on the same axle to eliminate uneven braking behavior. Always wash drums after servicing or before installing.
| Condition | Code | Procedure |
|---|---|---|
| Balance weight missing Affecting performance | A | Require repair or replacement |
| Balance weight missing Not affecting performance | No service suggested or required | |
| Bell-mouthed, affecting performance | A | Require reconditioning or replacement |
| Cooling fin broken | No service suggested or required | |
| Cracked | B | Require replacement |
| Drum diameter is greater than OEM ""machine to"" specifications but less than ""discard at"" | 1 | Suggest replacement |
| specifications, and the drum does not require reconditioning | ||
|
NOTE:
Only applies to vehicles for which OEM ""machine to"" specifications exist. If OEM does not supply ""machine to"" specifications, the drum may be worn to discard specifications
|
||
| Drum diameter will exceed OEM ""machine to"" specifications after required reconditioning | B | Require replacement |
|
NOTE:
If OEM does not supply ""machine to"" specifications, you may machine to discard specifications.
|
||
| Hard -spotted | 2 | Suggest reconditioning or replacement |
| Measured diameter is greater than OEM discard specifications | B | Require replacement |
| Out-of-round (runout), affecting performance | A | Require reconditioning or replacement |
| Out-of-round (runout), exceeding manufacturer's specifications | B | Require reconditioning or replacement |
| Scored | B | Require reconditioning or replacement |
| Surface threaded due to improper machining | B | Require reconditioning or replacement |
| Tapered, affecting performance | A | Require reconditioning or replacement |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.