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Performance Buick GMC
Cedar Knolls, NJ
1,965 Reviews
Performance Buick GMC is your trusted Buick, GMC dealership in Cedar Knolls, NJ and the reason why our loyal customers from Morristown, Parsippany, and Randolph keep coming back. From the time you enter our showroom when you service with us, you can expect to be treated like family, each and every visit. We offer an extensive new and pre-owned inventory, as well as our competitive lease specials, finance options and expert auto service. We are dedicated to providing exceptional customer service to Hanover County and being an integral part of our Cedar Knolls, NJ community. We look forward to seeing you soon!
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This rating includes all dealership reviews, with more weight given to recent reviews.
Sales Price Transparency
Service Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Workmanship
Service Time
Service Communication
Hours
Sales/Showroom
Monday 9:00 AM - 8:00 PM
Tuesday 9:00 AM - 8:00 PM
Wednesday 9:00 AM - 8:00 PM
Thursday 9:00 AM - 8:00 PM
Friday 9:00 AM - 8:00 PM
Saturday 9:00 AM - 6:00 PM
Sunday Closed
Service
Monday 9:00 AM - 8:00 PM
Tuesday 9:00 AM - 8:00 PM
Wednesday 9:00 AM - 8:00 PM
Thursday 9:00 AM - 8:00 PM
Friday 9:00 AM - 8:00 PM
Saturday 9:00 AM - 6:00 PM
Sunday Closed
Parts
Monday 9:00 AM - 8:00 PM
Tuesday 9:00 AM - 8:00 PM
Wednesday 9:00 AM - 8:00 PM
Thursday 9:00 AM - 8:00 PM
Friday 9:00 AM - 8:00 PM
Saturday 9:00 AM - 6:00 PM
Sunday Closed
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Showing 1,965 reviews
May 07, 2026
The entire service department is extremely welcoming and helpful I couldn't ask for better treatment. helpful I couldn't ask for better treatment. More
by BRIANDEJESUS50
Verified Customer
May 06, 2026
I would like to say that junior over at GMC in Cedar Knolls did what he said he was gonna do and kept me posted every step of the way Knolls did what he said he was gonna do and kept me posted every step of the way More
by CARMENTOZ
Employees Worked With
May 06, 2026
Junior was excellent taking care and pride in servicing my 1500 Denali pickup. It came back serviced and washed beautifully. I highly recommend the service from appointment to completion. Thx much my 1500 Denali pickup. It came back serviced and washed beautifully. I highly recommend the service from appointment to completion. Thx much More
by woodruffconstructioncoco@gmail.com
Employees Worked With
Junior
May 05, 2026
Unwilling to honor warranty and fix faulty transmission. Kept work vehicle for 2 weeks and then said GM won’t warranty. Bought another dealership and they are doing the right thing to resolve the issue. Tot Kept work vehicle for 2 weeks and then said GM won’t warranty. Bought another dealership and they are doing the right thing to resolve the issue. Total waste of time dealing. More
by INFO@RISSLANDDOOR.NET
May 03, 2026
Very professional and great service. Made purchase of new GMC very easy and pleasant experience. Appreciated the level of service and attention. Made purchase of new GMC very easy and pleasant experience. Appreciated the level of service and attention. More
by kgaebele
Employees Worked With
Christopher Salko
May 03, 2026
The service was very good, and staff are polite. Overall good experience at the dealership Overall good experience at the dealership More
by ADOLFO.CHEONG
