Dealer told me that the Shifter Linkage needed replacing and also the Ground Cable was corroded. Quoted $2400 for shifter, $630 for cable, $600 to reset diagnostics error, plus taxes. Approx. $4,000!
I followed this video
from
https://www.youtube.com/channel/UCur...UrUnhjsFvh_R9g
Purchased the spring online for $3.68 plus $6.00 shipping
Took me all of 3 hours to replace, problem solved.