US sales by Japan's third-largest automaker dipped 0.8% in the first half. It posted a 6% drop in North American operating profit for the April-June quarter.
Overall earnings were buoyant, however, with a 7.1% rise in quarterly operating profit to 198.04 billion yen ($1.9 billion).
Honda said its Mexico plant, which makes the Fit subcompact, was hit by delays as it adopted new manufacturing techniques, but kept its full-year US sales targets unchanged and said volumes would get back on track. "We are extra careful with quality, and that's why initial delivery was somewhat delayed, but as the workers acquire more skills, we can catch up," Honda executive vice president Tetsuo Iwamurasaid on Tuesday.