A defeat at the traditionally hostile GIO Stadium would have left the Highlanders well adrift in the New Zealand conference. They are still last on nine competition points, but have kept in touch with the Blues (11), although both are a long way back from the top-placed Crusaders (21), who had an easier time of it in beating the Force 45-17 in Christchurch.
A negative for Scott Robertson's men was that they were again mystified by the referee's scrum rulings.
They were heavily penalised there against the Reds in one of their three fightback wins despite the set piece being a strength. They were later told by referees' boss Lyndon Bray that they were in fact not at fault at Suncorp Stadium, but it seems his message didn't reach Rohan Hoffmann at AMI Stadium.
One six-minute period in the second half dragged as Hoffmann was forced to constantly re-set scrums and Crusaders replacement prop Tim Perry was made the fall guy with a yellow card.
"Everyone was frustrated," said Robertson afterwards of the re-sets. "From in the stands to the ref, to the players. It was a shame, because there was some good footy around it."
The Brumbies will have been frustrated that they couldn't make the Highlanders pay in those final minutes in Canberra, but Stephen Larkham's team couldn't deliver the killer blow.
"It was a bloody tough battle," said Highlanders coach Tony Brown. "For us, it was just a huge relief to get the job done in the end.
"I thought not only our maul defence, but also our scrum, held up under real pressure. And that was always going to be key to winning the game."