510 E Norris Dr
Ottawa, IL 61350

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Sales: 815-433-1666

Used Cars: 815-860-1874

Hours Toggle

Sales Department

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

Service Department

Sun Closed
Mon 8:00am – 5:00pm
Tue 8:00am – 5:00pm
Wed 8:00am – 5:00pm
Thu 8:00am – 5:00pm
Fri 8:00am – 5:00pm
Sat 8:00am – 12:00pm

Reviews of Sierra Mazda

Overall Rating:

4.7 (out of 5)

80% recommend this dealer

60 total reviews

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

5.0 (out of 5)

Frank is absolutely the only person my family will

Reviewed by Boss lady August 20, 2025

Frank is absolutely the only person my family will purchase a car from. Outgoing friendly and caring. Treats us as if we are his own family.

  • Does recommend this dealer
  • Shopped for a new car

Dealer Response

Thank you so much for sharing this wonderful review. We’re thrilled to hear that Frank has consistently provided the kind of experience that makes you and your family feel right at home. He truly cares about his customers, and it’s clear that his dedication shines through. We’re grateful for your trust and loyalty, and we look forward to continuing to serve you and your family for many years to come.

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)

Frank at Sierra in Ottawa is truly outstanding—he goes

Reviewed by Abbey ThummAugust 18, 2025

Frank at Sierra in Ottawa is truly outstanding—he goes above and beyond to make sure every customer feels valued and taken care of. He’s knowledgeable, patient, and always willing to answer questions, making the car-buying process smooth and stress-free. Whether it’s helping someone find the perfect vehicle, explaining all the details clearly, or ensuring the best possible deal, Frank’s professionalism and friendly attitude shine through.

  • Does recommend this dealer
  • Shopped for a new car

Dealer Response

Thank you so much for this amazing review. We’re delighted to hear how outstanding your experience with Frank was. His dedication to going above and beyond, along with his knowledge and patience, truly makes the car-buying process enjoyable and stress-free. We’re proud to have him on the Sierra Motors team and grateful for your kind words. We look forward to welcoming you back whenever you need us.

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)

First class service attention to detail and treating

Reviewed by TheobsessionZBoothAugust 18, 2025

First class service attention to detail and treating customers well. Very happy. Have bought 6 units from Frank between 2 stores in the Bill Walsh organization.

  • Does recommend this dealer
  • Shopped for a used car

Dealer Response

Thank you for your incredible loyalty. We’re thrilled to hear Frank has provided first-class service time and again. 6 vehicles and counting is an amazing milestone, and we’re grateful to have earned your trust with the Bill Walsh organization. We look forward to serving you for many more years to come.

Overall Experience 5

Customer Service N/A

Quality of Repair N/A

Friendliness N/A

Pricing N/A

Maximum rating = 5

About Sierra Mazda

At Sierra Motors Dodge Chrysler Jeep Ram, Mazda, and VW, everything we do revolves around you. Our diverse teams across all brands are expertly trained to address your needs from the moment you walk through the door. Whether you're in the market for your next vehicle or seeking top-notch auto repair for your vehicle, we are here to ensure a seamless and satisfying experience.

Ready to buy? Get a price quote before visiting the dealership.

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