vin-number
Holden Trailblazer VIN Number
Use this guide to find the VIN on your Holden Trailblazer, understand what it tells you, and start the right parts enquiry for your exact vehicle.
The Holden Trailblazer (RG series, built 2016 to 2020) is a body-on-frame, seven-seat 4×4 wagon derived from the Holden Colorado RG ute and powered by a 2.8-litre turbo-diesel "Duramax" four. It arrived in 2016 as a straight renaming of the earlier Holden Colorado 7, so the two names refer to essentially the same wagon across its life.
Where to find your Holden VIN
On most Holdens the 17-character VIN can be found in several places — check whichever is easiest to read:
- At the base of the windscreen on the driver's side, visible from outside the car.
- Stamped into the floor of the driver's or front-passenger footwell, under the carpet or trim flap.
- On the compliance / identification plate in the driver's door opening or in the engine bay.
- On your registration papers and registration certificate.
A Holden VIN is 17 characters and never uses the letters I, O or Q. The 10th character is the model-year code; because the model year can run ahead of the build date, cross-check it against the build month and year on the compliance plate.
The compliance plate also lists paint, trim, engine and transmission codes. Those codes are what pin down an exact panel colour or interior match, so it helps to send them with your enquiry. Holdens built before 1988 may not carry a 17-character VIN at all — on those cars use the body / compliance plate and the chassis and engine numbers instead.
On this model
The Trailblazer was built in Thailand, so its VIN begins with a non-Australian world manufacturer identifier rather than the Holden 6H8 prefix used on locally built cars; treat the leading WMI as a Thai GM plant code and do not expect an Australian sequence. The VIN and build plate follow the Colorado RG convention because the two vehicles come off the same platform, so the identifiers align closely. Use the compliance and identification plate to confirm the RG series and the wagon body specifically, since the plate is the reliable way to separate the Trailblazer from the Colorado ute and from the earlier Colorado 7. Because so much is shared, cross-referencing the equivalent Colorado RG details is a practical check when confirming a part or specification.
This page also draws on later year-by-year data for Holden Trailblazer to cover modern variants.
Frequently asked questions
Where is the VIN on a Holden Trailblazer?
Check the base of the windscreen on the driver's side, the floor of the driver's or passenger footwell, the compliance plate in the door opening or engine bay, and your registration papers. The exact spot can vary by year and body style.
How long is a Holden VIN and what does it tell you?
A modern Holden VIN is 17 characters and never uses I, O or Q. It identifies the vehicle, and the 10th character is the model-year code — cross-check it against the build date on the compliance plate.
My older Holden does not seem to have a 17-character VIN. Why?
Holdens built before 1988 generally pre-date the 17-character VIN. Use the body / compliance plate and the chassis and engine numbers to identify the car instead.
Can I ask for parts once I have my VIN?
Yes. Send the VIN plus any paint, trim, engine and transmission codes from the compliance plate and we will check availability for your exact vehicle.
Quick enquiry
Submit your Holden parts enquiry and we'll check availability.
We handle genuine, aftermarket, new and second-hand Holden parts enquiries.