The Motion Picture Association of America (MPAA) studied Christmas Ride and rated it PG, standing for Parental Guidance suggested. More about this association may be found at mpaa.org .
The Classification and Rating Administration (CARA) explains the motion picture industry ratings at their website CARA.org and filmRatings.com. They maintain a searchable database and Twitter feed announcing the ratings of all films processed to help parents make wise viewing decisions about movies for their children.
In the ladder of ratings, PG is quite mild, only one step up from G (for general audiences) in the scale. After that the rungs of the ladder are PG-13, R, NC-17 indicating higher quantity of adult content less likely to be appropriate for teens or children.