Short version: there’s no DIY download for a Holden Captiva 7—official software updates (ECU/TCM/BCM or infotainment) are done by Holden/ACDelco authorised service centres using GM’s SPS tools.
Book in with your VIN and they’ll check for outstanding campaigns or recalls, then apply any calibration updates, reset adaptations, and clear codes—no USB sticks, no wishful tapping.
Expect about 30–90 minutes of workshop time and roughly AUD $120–$250 in labour for a straight reflash; recall-related updates are typically free.
Good practice: keep battery voltage stable during flashing, don’t interrupt the process, and ask for a test drive to confirm improved shift quality or drivability.
Avoid “mystery firmware” from the internet—bricking a module turns a cheap fix into a wallet workout.
If your infotainment is glitchy, updates are limited on older Captiva units; many owners opt for quality Android Auto/CarPlay retrofit head-units instead.
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