The Bavarians, chasing a Champions League-Bundesliga-German Cup treble, are brimming with confidence after scoring 20 goals in their last four games in all competitions.
"We are on a good run but we have to be careful not to let up," said German international Neuer ahead of Saturday's home league game with Hannover 96.
"What is clear is that we must not relax. We have to keep working and not assume all this will just continue.
"We saw it earlier in the season when we stumbled towards the end of the year maybe because we were blinded by some good results," added Neuer.
Bayern are locked in a straight fight with Borussia Dortmund for the Bundesliga and German Cup trophies.
Neuer's side also have a Champions League quarter-final with Olympique Marseille to look forward to, knowing the final of that competition will be held at their home ground in Munich in May.
Bayern coach Jupp Heynckes looks likely to have Germany midfielder Bastian Schweinsteiger back at the weekend after missing two matches through injury.
League champions Dortmund, five points clear of second-placed Bayern at the top of the table, reached the cup final by snatching a last-gasp 1-0 victory at second division Greuther Fuerth on Tuesday.
Dortmund, unbeaten in 20 Bundesliga games, travel to struggling Cologne on Sunday.
Cologne are sixth from bottom, only three points ahead of Freiburg who occupy the relegation play-off spot.
Borussia Monchengladbach, eight points adrift of Dortmund in third position and battling to earn a Champions League spot, host Hoffenheim on Saturday.
Schalke 04, in fourth spot one point behind Gladbach, entertain Bayer Leverkusen in Saturday's late game.
