Believe it or not, the manual explicitly states that this is unnecessary. Now clearly, if it's drying out, you may disagree.
Pages 728 & 729:
Interior Care
Use MOPAR® Total Clean to clean fabric upholstery and
carpeting.
Use MOPAR® Total Clean to clean vinyl upholstery.
MOPAR® Total Clean is specifically recommended for
leather upholstery.
Your leather upholstery can be best preserved by regular
cleaning with a damp soft cloth. Small particles of dirt
can act as an abrasive and damage the leather upholstery
and should be removed promptly with a damp cloth.
Stubborn soils can be removed easily with a soft cloth
and MOPAR® Total Clean. Care should be taken to avoid
soaking your leather upholstery with any liquid. Please
do not use polishes, oils, cleaning fluids, solvents, detergents,
or ammonia-based cleaners to clean your leather
upholstery. Application of a leather conditioner is not
required to maintain the original condition.