1705 North Lincoln Street
Knoxville, IA 50138

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Sales: 641-842-3200

Used Cars: 641-842-3200

Hours Toggle

Sales Department

Sun Closed
Mon 9:00am – 7:00pm
Tue 9:00am – 6:00pm
Wed 9:00am – 6:00pm
Thu 9:00am – 7:00pm
Fri 9:00am – 6:00pm
Sat 9:00am – 5:00pm

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 – 12:00pm

Reviews of DeYarman GMC

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

5.0 (out of 5)

Everyone was friendly and helpful.

Reviewed by susanrminkNovember 07, 2025

Everyone was friendly and helpful. They made me feel like I was a valued customer.

  • Does recommend this dealer
  • Shopped for a new car

Overall Experience 5

Customer Service N/A

Quality of Repair N/A

Friendliness N/A

Pricing N/A

Maximum rating = 5

5.0 (out of 5)

I continue to work with the Deyarman Autogroup because

Reviewed by drew71.dutchJuly 19, 2025

I continue to work with the Deyarman Autogroup because the customer is a priority for Doug and all of his team members. This is the 3rd vehicle I have been purchased from Doug or his team and each time I have been treated like the most important customer in the dealership, wether I was buying a $5000 car for my kids or a new truck for myself!

  • Does recommend this dealer
  • Shopped for a new car

Overall Experience 5

Customer Service N/A

Quality of Repair N/A

Friendliness N/A

Pricing N/A

Maximum rating = 5

5.0 (out of 5)

Great customer service.

Reviewed by matterdley224December 15, 2022

Great customer service. My old car was totaled and I needed something quickly. The processed for buying my new car was very streamlined. Would go there again. Thanks, Ben, Nick, and Mike.

  • Does recommend this dealer
  • Shopped for a new car

Overall Experience 5

Customer Service N/A

Quality of Repair N/A

Friendliness N/A

Pricing N/A

Maximum rating = 5

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