The upgrades come at no extra cost to the five-seat Captiva 5 and seven-seat Captiva 7 range. Most of them, however, go to the Captiva 7.
Two of the three seven-seaters get a longer list of standard features, with the entry-level SX getting rear-park assist and the top-range LX picking up heated front seats and front parking sensors.
The Captiva 5 gets no extra features as part of the 2012 update.
The biggest fuel savings come on the 3-litre V6, a 190kW/288Nm petrol unit shared with the Commodore range and offered on CX and LX versions of the Captiva 7.
It now consumes a claimed town-and-around figure of 10.1 litres/100km, down from 11.3 litres/100km, an improvement of better than 10 per cent for the SIDI (spark ignition, direct injection) engine.
The 2.4-litre four-cylinder petrol engine offered on the Captiva 5 and the base SX version of the Captiva 7 now consumes a claimed 8.8 litres/100km in the Captiva 5 and 9.0 litres/100km in the Captiva 7. Previously, the 123kW/230Nm unit was good for consumption of 9.1 litres/100km in both models.
The Italian-built 2.2-litre turbo-diesel delivers 135kW/400Nm. Holden says revisions have improved fuel use in the SX 2WD Captiva 7 from 8.1 litres/100km to 7.6 litres/100km.
Claimed consumption in the 4WD CX and LX Captiva 7 variants is more modest - 8.1 litres/100km compared with a previous best of 8.3 litres/100km.
All Captivas except the entry-level 2.4-litre Captiva 5 come standard with a six-speed automatic transmission.