Parts for your 2016 Holden Colorado-Bump stops

2016 Holden Colorado bump-stops

Based on technical references including the Holden/GM RG Colorado Workshop Manual (2012–2016), GM Global Service Information, and major Australian parts catalogues that list front “jounce bumpers” and rear axle bump stops for the RG platform, the 2016 Holden Colorado is absolutely fitted with bump-stops. They’re a standard, relevant component of both the front independent suspension and the rear leaf-spring/live-axle setup.

On a 2016 Holden Colorado, bump-stops act as the last line of defence when the suspension compresses hard — think loaded trays, corrugations, washouts, or a sharp hit at speed. The front jounce bumpers sit near the lower control arms, cushioning the impact before metal hits metal. Out back, the chassis-mounted rubber stops limit axle travel and protect the leaf springs, shocks and mounts. By controlling that end-of-travel moment, they help maintain ride comfort, protect tyres from rubbing, and prevent damage to arms, mounts and shock internals.

As part of regular servicing, they’re worth a quick look. Rubber or elastomer bump-stops naturally age, especially with Aussie and Kiwi UV, mud, and constant load cycles. If they’re cracked, perished, oil-soaked from a leaky shock, or missing chunks, they won’t cushion properly. That’s when thuds over speed humps, harsh bottom-outs, or new tyre rub marks start showing up.

Replacement is straightforward for most variants: support the vehicle safely, unload the suspension, and remove the retaining hardware or press-fit unit as applicable. Always match the bump-stop to the vehicle’s ride height and intended use. For touring, towing or canopy/steel tray setups, many owners opt for heavy-duty or progressive-rate designs to smooth the hit and add a touch more control under load. On lifted Colorados, extended bump-stops can correct suspension geometry at full compression and protect shocks from over-travel. If sticking with OE-style parts, fresh genuine-spec jounce bumpers restore the factory feel without adding noise or harshness.

Good practice is to inspect every 20,000–30,000 kilometres, or anytime shocks, control arms, or leaf packs are serviced. Replace in pairs per axle to keep response even left-to-right, torque fasteners to spec from the RG manual, and recheck clearances around brake lines and tyres after fitment. With healthy bump-stops, the Colorado rides quieter, keeps its alignment alive longer, and shrugs off big hits the way a proper ute should.

• Signs they’re due: visible cracking or missing material, frequent bottoming-out, new tyre rub marks, or clunks on sharp bumps.
• Good upgrades: progressive or polyurethane options for towing/touring, OE-style for factory ride and NVH.

Does a 2016 Holden Colorado have bump-stops?

Yes. The RG Colorado platform uses front jounce bumpers and rear axle bump stops from factory. They’re documented in the RG Workshop Manual and listed by major parts suppliers across Australia and New Zealand.

What are the signs the bump-stops need replacing?

Look for perished or cracked rubber, chunks missing, or oil contamination from a leaking shock. On the road, repeated bottoming-out, harsh thuds over speed bumps, or fresh tyre rub marks point to tired or absent bump-stops.

Should they be upgraded when lifting or carrying heavy loads?

Often, yes. For lifts, extended or progressive bump-stops help protect shocks and control arms at full compression. For towing and constant loads, heavy-duty or progressive designs can tame big hits and reduce harshness, while OE-style parts suit stock-height daily driving.