Billion Buick GMC Cadillac in Sioux City including address, phone, dealer reviews, directions, a map, inventory and more

4300 Southgate Dr
Sioux City, IA 51106

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Sales: 712-454-1721

Used Cars: 712-454-1717

Hours Toggle

Sales Department

Sun Closed
Mon 8:00am – 8:00pm
Tue 8:00am – 8:00pm
Wed 8:00am – 8:00pm
Thu 8:00am – 8:00pm
Fri 8:00am – 6:00pm
Sat 9:00am – 6:00pm

Service Department

Sun Closed
Mon 7:30am – 5:30pm
Tue 7:30am – 5:30pm
Wed 7:30am – 5:30pm
Thu 7:30am – 5:30pm
Fri 7:30am – 5:30pm
Sat 8:00am – 4:00pm

Reviews of Billion Buick GMC Cadillac

Showing the most recent reviews from Cars.com and DealerRater.

1.0 (out of 5)

Not happy with the service that I got from here

Reviewed by Ashley from Sioux City Iowa August 05, 2023

My boyfriend got his oil changed on the 24 of July 2023 an he noticed this Tuesday the the 1 when he moved his car there was oil on the ground where he parks his car at home so we jacked it up to see where the oil was linking from an they put the bolt in cockeyed so that’s why it’s linking so he took it back on the 3 of August an now Jake Jungers him an his girlfriend that they will not fixed what they broke on his car he wants him to pay 500$ for what they broken how fair to him it’s not he should have to pay nothing they broke it then they try to say it been broken before so I was like if it was broken before why didn’t you guys say something the last time I got my oil change from you guys I been coming here for a long time with my car an my truck so now I know you guys are lien just to cover your xxx now Im with a car all because you messed it up by not doing the oil change rite an your job right my girlfriend keeps asking to talk to someone higher then Jake Jungers an he wouldn’t not get someone for her it’s just like an accident when you hit someone with your car it’s your fault so you have to fix there car this is the same thing so I would like them to fix his car for free cause they did it to his car HE WILL NOT PAY 500$ FOR IT FOR WHAT THEY DID TO HIS CAR I WILL TELL EVERYONE I KNOW TO NEVER BUY A CAR OR TAKE THEIR CAR TO BE FIXED THERE

  • Does not recommend this dealer
  • Came in for service or repair
  • Did not make a purchase

Overall Facilities 1

Customer Service 1

Buying Process 1

Quality of Repair 1

Maximum rating = 5

5.0 (out of 5)

Ask for Sean

Reviewed by Stacy Kazos from Dakota Dunes, SDSeptember 26, 2022

I purchased 2 vehicles from Sean in just a few short months. I was searching for a black SUV and didn't think I would be able to find one in our area without ordering in advance so I told him to keep an eye out for one. Based on the current market, I thought I would hear back from him in a few months or longer. He called less than a week after telling him I wanted one and let me know a 2023 GMC Yukon arrived. It's not the brand of vehicle I was looking for but it exceeded my expectations on price, performance and comfort and I'm very happy I looked in to the GMC brand. There were a few things I didn't understand about the Valpro add-ons required by the dealership but after asking more questions, I see the value in this product for both used and new vehicles. I had another issue that required some attention but after a few discussions, the issues were resolved and managed by Sean and the Sales Manager in a timely manner. In the future when I am looking for a new or used vehicle, I will be reaching out to Sean first. He simplifies the search by looking for you.

  • Does recommend this dealer
  • Shopped for a used car
  • Did make a purchase

Dealer Response

Stacy, Thank you for your review and five star recommendation, congratulations on the 2023 GMC Yukon! We are happy to hear that Sean and the sales manager were able to provide you with a great experience, along with taking care of issues and concerns. We appreciate your business, and we look forward to serving you again in the future! Thank you for choosing Billion GMC of Sioux City.

Overall Facilities 5

Customer Service 5

Buying Process 5

Quality of Repair 5

Maximum rating = 5

5.0 (out of 5)

Great Service Department!

Reviewed by Jake J from Sioux City, IowaSeptember 17, 2022

Great Service Department & Knowledgeable Sales Staff. I've been taking my families vehicles to Billion Automotive for several years. Any time I have a question about my GMC or due for Service they are willing to help!

  • Does recommend this dealer
  • Came in for service or repair
  • Did make a purchase

Dealer Response

Jake, Thank you for your review and five star recommendation, we are happy to hear that your visits with us at Billion GMC of Sioux City have always been great. We appreciate your business and look forward to serving you again in the future!

Overall Facilities 5

Customer Service 5

Buying Process 5

Quality of Repair 5

Maximum rating = 5

About Billion Buick GMC Cadillac

Billion Automotive has over 7000 new and pre-owned vehicles for you to choose from. We hope this vehicle fits your needs or if you'd like to shop around find more quality vehicles online at Billionauto.com.

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