Miami Dolphins defensive tackle Kendrick Norton made an improper lane change just prior to the two-vehicle crash that led to his left arm being amputated, according to a crash report.

A four-page Florida Highway Patrol report, released Thursday, shows that Norton, 22, was issued a citation for the improper lane change — a $179 fine — while driving westbound on State Road 836 near Miami at about 1:15 a.m. July 4 in his black 2017 Ford F250, cutting directly in front of a gray 2015 Maserati Quattroporte.

“As a result, the left side of [the F250] sideswiped the right side of the [Maserati],” the report reads.

Norton’s truck then slammed into a concrete barrier before overturning onto its roof. The Maserati, meanwhile, came to a “controlled stop” on a nearby exit ramp, according to the report, which was obtained by The Post.

Tests for alcohol and drugs were not given to Norton and his 34-year-old female passenger, Shakir Williams, but neither was suspected of being under the influence prior to the crash that cut short the former Miami Hurricane’s once-promising NFL career.

Norton and Williams were not wearing seat belts at the time, unlike the driver of the Maserati, Jessie Pena, 30, of Miami. Pena was also not suspected of using drugs or alcohol before the wreck, according to the report.

The NFL has announced that it will pay for Norton’s medical bills as he continues to recover.

Norton, who is still on the Dolphins’ roster after joining the team in December, has already undergone three surgeries and may need two more before he can be fitted for a prosthetic arm, the South Florida Sun-Sentinel reports.

Norton was scheduled to make $495,000 in salary if he made Miami’s roster, the newspaper reports.