The team agreed that whichever driver won the championship would head to a Petronas event in Malaysia on Monday, while the runner up would remain in Abu Dhabi to test Pirelli's 2017 tyres.
But the German newspaper Bild is claiming that Hamilton was refusing to test on Tuesday.
A team spokesman, however, denied the claims.
"That is not correct," the spokesman is quoted by Sport1 in Germany. "Lewis is still on the schedule and expected to drive."
Hamilton has since taken to the track in Abu Dhabi to sample Pirelli's 2017 rubber.
Amid the controversy over Hamilton's refusal to obey team orders in Sunday's Abu Dhabi Grand Prix, team boss Toto Wolff has dropped a further hint that there is tension within the team by suggesting Hamilton should drive for Red Bull after the Anglo-Austrian team's boss Christian Horner came to the support of Hamilton after the race.
"Maybe he (Hamilton) should drive for him (Horner)," Wolff said on Sunday, to British television, not just to Sky but also to Channel 4 on a separate occasion.
On rumour doing the rounds in Abu Dhabi was that Hamilton even threatened to quit Mercedes after his clash with Nico Rosberg in Spain earlier this year - a threat he refused to deny.
"That's all private stuff," Hamilton said. "It's all in the past so it doesn't really matter."
Bahrain International Circuit - Winter testing