2012–2021RG SelectedRG2.8 turbo-dieselDieselSee faults & what to checkKickTyres illustration, not a photograph.Holden Colorado RG: common faults & what to check
The RG is the Holden Colorado built 2012–2021. The engines documented for it are the 2.8 turbo-diesel. Of the 14 faults documented for the Colorado, 9 apply to this generation, each with its symptoms, what to inspect and a typical repair cost. Free, no account needed.
Check this exact Holden Colorado
- Money owing
- Written off
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14
Critical
≈A$550–2,580
14
You're looking at the RG · 2.8 turbo-diesel
2012–2021RG SelectedRG2.8 turbo-dieselDieselSee faults & what to checkKickTyres illustration, not a photograph.Now narrow it to the engine
A 2013 Holden Colorado is the RG generation (2012 to 2021).
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Can't confirm for this car
Holden Colorado · 2013
Narrowed to the year. No engine is recorded for this vehicle. Pick an engine to see which faults apply.
Tell us the engine, or check the engine code on the car, before relying on this.
- No engine is recorded for this vehicle.
matched on year only
What to look out for
Serious issue
Clean the area with a rag before inspecting — cracks appear as dark hairline marks often packed with rust.
Front Leaf Spring Front Eye Cracking
The front mono-leaf spring on the RG Colorado develops fatigue cracks at the forward eye — the formed loop through which the chassis pin passes — under repeated bump loading, particularly when the vehicle is used with a canopy, tray load, or bull bar that increases unsprung stress cycles. A cracked eye can propagate to full fracture, causing the front axle to shift rearward under braking and creating acute understeer or loss of directional control. This is a safety-critical structural failure that has been subject to at least one voluntary recall campaign in Australia.
What you would notice
All 9 issues for this one
4 rated criticalElectrical1 critical
01Alternator cable fire recall (RG Colorado built September 2013 to January 2015)
RG Colorados built from September 2013 to January 2015 were recalled (PRA 2015/14657) because the main alternator cable can rub on a steel bracket at the battery tray, wear through, short out and in the worst case melt or start a fire. This applies to all engines. The fix is free through a GM or former Holden dealer. Look for chafe or melt marks near the battery.
Symptoms to notice
What to check
Ask the seller
Body, brakes, suspension & interior1 critical
Only if it's 4WD or AWD: 1 issue
Only with a certain gearbox: 1 issue
Depends on the exact engine or version: 5 issues
01LWN 2.8L Diesel EGR Cooler Internal Failure – Coolant Contamination
Can't confirm for this car02LWN 2.8L Diesel Automatic Flywheel Bolt Shearing
Can't confirm for this car
Can't confirm for this car
The automatic transmission variant of the RG Colorado LWN 2.8L diesel is subject to flywheel (flex plate) bolt shearing. The bolts connecting the torque converter to the flex plate can shear under the torque loads of the diesel engine, particularly when towing. The failure produces a loud knocking noise and renders the vehicle unable to drive. Holden Australia issued a recall for this fault covering certain build date ranges.
Symptoms to notice
What to check
Ask the seller
03LWN 2.8L Diesel DPF Blockage from Urban / Short-Trip Use
Can't confirm for this car04EGR Cooler Carbonisation and Throttle Body Fouling
Can't confirm for this car05RG 2.8 LWH exhaust brake VNT actuator failure
Can't confirm for this carOther Holden Colorado engines and years
Engine, transmission & cooling
01RG Colorado five-speed manual fifth gear thrust washer fracture (2014 model year)
Does not apply
Does not apply
RG Colorados from the 2014 model year with the five-speed manual gearbox are a known issue for the fifth gear thrust washer wearing and fracturing, especially when towing heavy loads at speed. The gearbox can then jump out of fifth and in the worst case lock the rear wheels. Holden ran a customer satisfaction program that replaced the transmission, so check it has been done.
Symptoms to notice
What to check
Ask the seller
02Glow Plug Seizure and Broken Tip on Extraction
Does not apply03Timing chain wear and stretch — cold-start rattle (3.6 V6 Alloytec)
Does not apply
Does not apply
The RC Colorado's 3.6 petrol V6 is the same Alloytec (HFV6, 10H9-prefix) engine fitted to the late RA Rodeo and the VZ/VE Commodore, an engine family GM documented for timing chain elongation (bulletin H08-0601-01). The known bad-chain build window ended in May 2007, before RC production, but stretched chains and worn guides are still widely reported on later Alloytecs at higher kilometres, especially where oil changes were stretched. A stretched chain sets camshaft-correlation fault codes (P0008, P0009, P0016 to P0019) and rattles at idle and on cold start; left alone it can jump timing. The fix is a chains, guides and tensioners job deep in the front of the engine.
Example of the part — not this vehicleThe front of a twin-cam engine with the timing cover off — chain, sprockets and guides.
Symptoms to notice
What to check
Ask the seller
04RC Colorado suction control valve (SCV) sticking, low rail pressure (3.0 4JJ1-TC diesel)
Does not apply05Oil consumption between services (2.8 Duramax diesel, RG Colorado 2014-2016)
Does not apply
Does not apply
The 2.8 Duramax diesel in 2014 to 2016 RG Colorados is known for using oil between services. Holden's service update changed the oil from 5W-30 to a dexos2 5W-40, fitted a new oil filler cap and amended the owner's manual. Cars that missed the update, or are still serviced with the old oil grade, may need regular top-ups.
Symptoms to notice
What to check
Ask the seller
Holden Colorado service schedule
Holden Colorado RG - Second Generation · 2012–2020 · 2.8L (LWN) Duramax Turbo Diesel - LT/LTZ/Z71
Due by distance
- 100,000 km
Full cooling system flush and replacement of the serpentine belt and tensioner for reliability on long hauls.
- 150,000 km
Inspect the suspension bushings and steering rack ends, which may show wear depending on whether the vehicle has seen heavy towing or off-road use.
- 200,000 km
Deep-clean the intake manifold to remove carbon buildup, restoring factory-level performance and fuel efficiency.
Holden Colorado RG - Second Generation · 2012–2020 · 2.5L (LKH) Duramax Turbo Diesel - DX/LX
Due by distance
- 100,000 km
Cooling system hoses and thermostat housings benefit from a proactive inspection.
- 150,000 km
Check for DPF (Diesel Particulate Filter) health and confirm the EGR system has been cleaned or serviced.
- 200,000 km
Suspension components like shock absorbers and control arm bushes might be due for a refresh to maintain the factory ride quality.
Holden Colorado faults in detail
Buying guides that cover the Holden Colorado
Other Holden models
Holden Colorado buyer questions
Is the Holden Colorado reliable?
Like any used car, it depends on the specific example and its service history. Across the 14 documented faults for the Holden Colorado, the recurring problem areas are transmission, cooling, and suspension. A Holden Colorado with a full service history and no signs of the issues listed on this page can be a sound buy but each one needs to be checked individually before you commit.
What are the most common problems with a used Holden Colorado?
We've catalogued 14 known faults for the Holden Colorado, covering transmission, cooling, and suspension. All 14 are written out in full on this page, with the symptoms to notice, what to inspect, and typical repair costs for each. Free to read, no account needed.
How much do repairs cost on a Holden Colorado?
Most single repairs on the Holden Colorado fall between ≈A$550–2,580 at independent-workshop rates (an approximate guide in Australian dollars). Some of the 14 documented faults cost less and a few cost considerably more, and no one car needs them all. Knowing which ones to look for before you view is what lets you negotiate the price down or walk away.
Should I get a pre-purchase inspection on a Holden Colorado?
Yes. A Holden Colorado inspection focused on its known weak points is the single best way to avoid an expensive mistake. KickTyres gives you a guided, model-specific inspection with AI photo analysis from A$28.90, far less than the cost of missing one of the faults on this page. For a big purchase, a mechanic's pre-purchase inspection on the car you settle on is still worth it.