Parts for your 2015 Holden Colorado-Wheel hubs

2015 Holden Colorado wheel hubs — what they do and when to service them

Wheel hubs are fitted to the 2015 Holden Colorado (RG). Technical references including the Holden Colorado RG workshop manual (2012–2016), GM Global Electronic Parts Catalogue, and major bearing catalogues for this model list front hub-and-bearing assemblies with integrated ABS encoder rings, plus rear hubs integrated with the live rear axle and brake hardware. The Colorado does not use manual free-wheeling hubs, it employs a unitised front hub bearing with a front-axle disconnect in the differential, so the “wheel hub” remains relevant even though there’s no manual locking knob at the wheel.

On this ute, the hub assembly is the sturdy centrepiece that the wheel bolts to. It houses a sealed bearing so the wheel can spin smoothly, carries the wheel studs, and provides an accurate signal for ABS and stability control via an encoder. On- and off-road, towing, and corrugated tracks all load the hub bearings, so keeping them healthy means quieter running, better tyre life, and sharper braking and steering feel.

• Common signs it’s time to check or replace a hub: a droning hum that rises with speed, ABS or traction lights, vague steering, uneven tyre wear, or detectable play when rocking the wheel at 12 and 6 o’clock.
• Good service habits: torque wheel nuts correctly, avoid blasting bearing seals with a pressure washer, and inspect for play and noise at each brake service.

For the 2015 Colorado, the hub bearings are sealed, non-serviceable units. The workshop manual specifies replacement of the entire assembly rather than repacking or pressing in a separate bearing. When replacing, choose a quality unit with the correct ABS encoder, use a new axle nut and any single‑use hub bolts as specified, and torque everything to the GM spec for the exact VIN. After fitting, clear any ABS faults and road test on a smooth surface. Replacing in pairs isn’t strictly required, but it’s sensible on high‑kilometre vehicles if one side has failed.

Many Colorado hub assemblies will see 150,000–250,000 km depending on load, tyre size, and terrain. Heavy towing, larger tyres, beach work, and frequent water crossings justify more frequent checks. Adding a hub inspection to routine servicing is a simple way to keep the Colorado tracking straight and quiet.

Popular questions about 2015 Holden Colorado wheel hubs

Do 2015 Colorados have manual locking hubs?
No. The RG Colorado uses a unitised front hub and a front‑axle disconnect inside the differential, so there are no manual free‑wheeling hubs at the wheels. It’s all handled automatically when shifting between 2H and 4H/4L.

How long do the wheel hubs usually last?
With normal driving, many last well past 150,000 km. Big tyres, corrugations, towing and water crossings shorten life. Listen for humming noises and check for play at each service.

Can the bearing be replaced on its own?
On this model the bearing is integrated into the hub. The repair procedure is to replace the hub assembly as a unit, fit new single‑use fasteners where specified, and torque to the GM spec.