Parts for your 2020 Holden Commodore-Shock absorbers

2020 Holden Commodore shock absorbers

Based on Holden/GM service information for the ZB Commodore (MY20), the model absolutely uses shock absorbers. Front suspension is MacPherson strut (with a damper integrated into the strut), and the rear is an independent multi-link with separate gas-charged dampers. Higher-spec AWD variants run Holden’s FlexRide (GM Continuous Damping Control) electronically adjustable shock absorbers. These details are consistent with the ZB Commodore owner’s manual and Opel Insignia B/GM workshop documentation that underpin the platform.

On this Commodore, the shock absorbers do the heavy lifting to keep tyres planted, smoothing out the rough stuff while controlling body movement. They tame spring bounce, sharpen steering response, cut brake dive and squat, and help the ABS/ESC systems do their job. Whether it’s the conventional gas shocks or the adaptive FlexRide units, the goal’s the same: confident grip and a comfy, stable ride on Aussie and Kiwi roads.

Servicing-wise, shocks are condition-based rather than on a fixed schedule, but they should be checked at routine services. A tech will look for oil misting or leaks, damaged dust boots, perished bushes, and any play in strut top mounts. A road test can pick up floaty ride, extra body roll, or a chattery rear over corrugations.

• Common wear clues: uneven or cupped tyre wear, longer stopping distances, nose-diving under brakes, clunks over bumps, or the car feeling “boaty” at highway speeds.
• Typical lifespan varies with use, but many sets are tired by 80,000–150,000 km. Country kilometres, towing and rough surfaces bring that forward.

When replacement time rolls around, shocks should be done in axle pairs (both fronts or both rears) to keep handling balanced. It’s smart to renew related hardware like strut mounts, bearings, bump stops and dust boots at the same time. Expect a wheel alignment after front strut work. GM specifies some single‑use fasteners and precise torque procedures, so following workshop manual steps is key.

FlexRide cars need the correct adaptive dampers, they’re not interchangeable with conventional shocks. The system may require a scan-tool routine and ride-height calibration during replacement, and connectors must be routed and sealed properly. Done right, fresh dampers bring the Commodore back to feeling tight, sure-footed and relaxed on long hauls.

Does the 2020 Holden Commodore have adaptive shock absorbers?

Some higher-spec AWD variants are fitted with FlexRide (GM Continuous Damping Control) adaptive dampers that alter firmness on the fly. Other trims use quality conventional gas-charged shocks. Checking the build plate or VIN options list will confirm what’s on a specific car.

How often should the shocks be replaced?

There’s no fixed interval. Replace based on condition: leaks, weak damping, or damage. Many owners see 80,000–150,000 km before performance drops off, but road conditions and load make a big difference. Always replace in axle pairs and get an alignment after front work.

Can worn shocks affect roadworthy and tyres?

Yes. Leaking or ineffective dampers can fail a roadworthy inspection, increase stopping distances, upset ABS/ESC performance, and cause cupping or rapid tyre wear. If the Commodore feels floaty or crashes over bumps, it’s time for an inspection.