Busch started his season on a rough note in the 2015 Sprint Unlimited when he got collected in 2 multi-car accidents.
At the second Budweiser Duel, he was running second behind Jimmie Johnson with nine laps to go.
He went below the yellow line by accident and improved his spot.
He was given a stop-and-go-penalty by officials which sent him to the back of the field for the final results.

On February 20, 2015, Busch was indefinitely suspended by NASCAR after a Delaware family court cited "more likely than not" that Busch had abused his ex-girlfriend Patricia Driscoll.
The accusation came after the couple split up and she came to the Dover track and let herself into his motor coach without permission using Busch's entrance code.
Regan Smith replaced him for the Daytona 500 along with the races held at Atlanta and Las Vegas.
Kurt Busch applied for reinstatement ten days after the Daytona 500 and began his reinstatement program.

On March 11, 2015, NASCAR lifted Busch's indefinite suspension after prosecutors in Delaware determined there was not enough evidence to bring a criminal case against Busch, making him eligible to compete again, starting with the CampingWorld.com 500 at Phoenix.
Driscoll is now under federal indictment for fraud and misusing charitable donations for personal gain.
Additionally, Busch was granted a waiver by NASCAR, making him still eligible for the Chase if he won a race between then and the autumn Richmond event.
In his first race back from suspension, Busch finished fifth.
At Auto Club, Busch won the pole and led the most laps (65), before being bumped back to third due to a last-lap pass by Brad Keselowski and Kevin Harvick.
The race ended in controversy as, according to an online poll, 69% of the fans suspected a fix in the waning laps on NASCAR's part.
NASCAR denied the allegations but not before the controversy broke out for the next few days following the race.

The next week at Martinsville, Busch led early in the race.
He faded to the tail end of the field mid-way.
He briefly got penalized for moving lanes before the restart, but 20 laps later officials rescinded the penalty.

Busch later took the checkers after a dominating performance at Richmond.
Battling Jamie McMurray for the win during the final 100 laps, Busch pulled away to win the race, his first win of the season.

Busch's second win came in a rain-shortened Michigan race.
At Sonoma, Busch dominated early, before finishing second to younger brother Kyle.

Busch would finish 8th in 2015 championship points despite missing the first three races of the season, scoring 21 top 10s and 3 poles.
Busch started his season on a rough note in the 2015 Sprint Unlimited when he got collected in 2 multi-car accidents. At the second Budweiser Duel, he was running second behind Jimmie Johnson with nine laps to go. He went below the yellow line by accident and improved his spot. He was given a stop-and-go-penalty by officials which sent him to the back of the field for the final results.
On February 20, 2015, Busch was indefinitely suspended by NASCAR after a Delaware family court cited "more likely than not" that Busch had abused his ex-girlfriend Patricia Driscoll. The accusation came after the couple split up and she came to the Dover track and let herself into his motor coach without permission using Busch's entrance code. Regan Smith replaced him for the Daytona 500 along with the races held at Atlanta and Las Vegas. Kurt Busch applied for reinstatement ten days after the Daytona 500 and began his reinstatement program.
On March 11, 2015, NASCAR lifted Busch's indefinite suspension after prosecutors in Delaware determined there was not enough evidence to bring a criminal case against Busch, making him eligible to compete again, starting with the CampingWorld.com 500 at Phoenix. Driscoll is now under federal indictment for fraud and misusing charitable donations for personal gain. Additionally, Busch was granted a waiver by NASCAR, making him still eligible for the Chase if he won a race between then and the autumn Richmond event. In his first race back from suspension, Busch finished fifth. At Auto Club, Busch won the pole and led the most laps (65), before being bumped back to third due to a last-lap pass by Brad Keselowski and Kevin Harvick. The race ended in controversy as, according to an online poll, 69% of the fans suspected a fix in the waning laps on NASCAR's part. NASCAR denied the allegations but not before the controversy broke out for the next few days following the race.
The next week at Martinsville, Busch led early in the race. He faded to the tail end of the field mid-way. He briefly got penalized for moving lanes before the restart, but 20 laps later officials rescinded the penalty.
Busch later took the checkers after a dominating performance at Richmond. Battling Jamie McMurray for the win during the final 100 laps, Busch pulled away to win the race, his first win of the season.
Busch's second win came in a rain-shortened Michigan race. At Sonoma, Busch dominated early, before finishing second to younger brother Kyle.
Busch would finish 8th in 2015 championship points despite missing the first three races of the season, scoring 21 top 10s and 3 poles.
Kurt Busch