Maxon Buick GMC

4.3
New Car Sales: (908) 739-6763Used Car Sales: (908) 201-8298Service: (908) 364-4005
Sales Open until 8:00 PM
Service Closed until 8:00 AM on Tuesday
More Hours

323 New and Used Vehicles for Sale at Maxon Buick GMC

Every used car comes with a FREE CARFAX Report
Sort by: CARFAX Best Match
1 - 12 of 323 results
2023 Chevrolet TrailBlazer LT
Used 2023 Chevrolet TrailBlazer LT
$18,599 | 33,598 miles
great value
No Accident or Damage Reported
No Accident or Damage Reported
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
12 Service History Records
2022 Chevrolet Equinox LS
Used 2022 Chevrolet Equinox LS
$16,746 | 20,514 miles
great value
Minor Damage
Minor Damage
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
2 Service History Records
2023 Buick Encore GX Preferred
Buick Certified Pre-Owned
Used 2023 Buick Encore GX Preferred
$19,418 | 12,371 miles
great value
No Accident or Damage Reported
No Accident or Damage Reported
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
5 Service History Records
2023 Chevrolet Tahoe Premier
Used 2023 Chevrolet Tahoe Premier
$41,799 | 60,402 miles
great value
No Accident or Damage Reported
No Accident or Damage Reported
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
14 Service History Records
2023 GMC Sierra 1500 SLT
GMC Certified Pre-Owned
Used 2023 GMC Sierra 1500 SLT
$43,817 | 35,898 miles
great value
No Accident or Damage Reported
No Accident or Damage Reported
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
8 Service History Records
2024 GMC Sierra 1500 Denali
Used 2024 GMC Sierra 1500 Denali
$50,378 | 32,267 miles
great value
No Accident or Damage Reported
No Accident or Damage Reported
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
10 Service History Records
2023 GMC Terrain AT4
GMC Certified Pre-Owned
Used 2023 GMC Terrain AT4
$22,554 | 33,847 miles
great value
No Accident or Damage Reported
No Accident or Damage Reported
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
7 Service History Records
2022 Buick Encore GX Select
Buick Certified Pre-Owned
Used 2022 Buick Encore GX Select
$16,499 | 21,117 miles
great value
No Accident or Damage Reported
No Accident or Damage Reported
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
8 Service History Records
2024 GMC Acadia Denali
GMC Certified Pre-Owned
Used 2024 GMC Acadia Denali
$45,199 | 10,698 miles
great value
No Accident or Damage Reported
No Accident or Damage Reported
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
4 Service History Records
2024 Buick Encore GX Preferred
Buick Certified Pre-Owned
Used 2024 Buick Encore GX Preferred
$20,144 | 26,998 miles
great value
No Accident or Damage Reported
No Accident or Damage Reported
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
7 Service History Records
2023 Chevrolet TrailBlazer LT
Used 2023 Chevrolet TrailBlazer LT
$21,290 | 12,481 miles
great value
No Accident or Damage Reported
No Accident or Damage Reported
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
5 Service History Records
2024 GMC Sierra 1500 SLT
Used 2024 GMC Sierra 1500 SLT
$41,967 | 52,906 miles
great value
No Accident or Damage Reported
No Accident or Damage Reported
Personal Use
Personal Use
CARFAX 1-Owner
CARFAX 1-Owner
Service History
11 Service History Records
1 - 12 of 323 results

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Ratings & Reviews

Overall Rating
4.3
399 Verified Reviews
5 Star
74%
4 Star
7%
3 Star
3%
2 Star
4%
1 Star
12%
Sort by: Most Helpful
Read reviews that mention
by John H. on 05/15/2026Verified Shopper
Criminals. Stay away rom Maxon. Advertised a Cadillac for 31,000. Drove 70 miles to purchase car. They lied on advertising. They said because I am not a past customer and not military and added ridiculous other fees, they said car would be 39,000. That's before taxes. So dishonest. I was willing to pay cash on the spot. There loss.
by 2026 BUICK ENCORE GX PREFERRED Owner on 04/16/2026Verified Service
Car had 4 paint blemishes. only 3 are addressed. One scratch still remains on hood. I made 2 phone calls to service manager last week, never returned my calls. Then called service director Mr Morrison, on Monday, sill no calls have even been acknowledged.extremely dissatisfied with Maxon Buick.
by 2016 GMC ACADIA SLT-1 Owner on 10/05/2025Verified Service
I brought my suv in for service. It was kept overnight, because they said they needed to check it out because they couldn't find what was wrong . Two days later they told me to come and get the truck. It would not start the next day. I was stuck Two weeks without a car
by 2019 BUICK ENCORE ESSENCE Owner on 09/15/2025Verified Service
I came in for a quick Oil change. My Service Manger Jerry helped me on that day. He advised me on the service needed, gave me the price started the service and helped me save a few dollars by letting me use points from GM also a coupon from the Dealer. This whole experience was very pleasant this time and the waiting room was not crowded. Thank you. All.
by 2025 BUICK ENCLAVE SPORT TOURING Owner on 08/10/2025Verified Service
Maxon was very accommodating by providing a fast appointment for the tire repair. I was offered a courtesy ride home because I couldn't wait while the tire was being repaired. When they were finished, which was in a reasonable time, they called and let me know it's done. Excellent service!
by 2017 GMC ACADIA ALL TERRAIN Owner on 08/10/2025Verified Service
I have a recall on my vehicle and They will only fix it and charge me full price. There is a serious issue with the GMC Acadia and I need to get it fixed. I have looked it up and it is in fact a recall. Please fix my vehicle. The Acadia is included in the recall with shift to park.
by 2020 CHEVROLET TRAVERSE LT Owner on 07/05/2026Verified Service
The service appointment took approximately 2 days to fix and diagnose the problem. I liked that they provided transportation so I could get back home. They didn't charge a diagnostic fee and the bill was cheaper than expected.
by 2023 GMC ACADIA SLE Owner on 05/12/2026Verified Service
All representatives were hospitable, and very happy the service was excellent and all things were explain and a very professional manner and easy to understand thank you for the excellent service
by 2022 GMC CANYON ELEVATION Owner on 05/07/2026Verified Service
Took truck in when they were completely over-booked, had the truck for 10 days and misdiagnosed it three times and still charged me for diagnostics fee. Took the truck elsewhere and the fix was something completely different.
by 2026 BUICK ENCLAVE PREFERRED Owner on 05/04/2026Verified Service
The ENTIRE Team at MAXON are true professionals. Car was returned nice and clean and the price was right!! THANK YOU, TEAM MAXON!!
by 2019 GMC ACADIA SLE Owner on 04/20/2026Verified Service
Didn't have a courtesy driver or cars available so I wouldn't have to wait at the dealership,repairs I guess were needed car rides better.
by 2013 GMC TERRAIN SLE Owner on 03/13/2026Verified Service
They were courteous and professional. Waiting area neat and clean coffee, snacks, TV provided. Car was ready within hour. It was for a recall issue. I had no complaints at all.
by 2023 GMC YUKON XL K1500 SLT Owner on 03/02/2026Verified Service
Took my truck to them multiple times and they were unable to fully repair. Had to get Corporate GM involved twice.
by 2024 GMC CANYON AT4 Owner on 02/10/2026Verified Service
The service was good as they were able to accommodate at a moments notice. Went in for a normal oil change/maintenance but I was there for over three hours, did not wash the car either.
by 2025 GMC TERRAIN ELEVATION Owner on 02/05/2026Verified Service
I was very happy with my oil change and how quick it was. The service advisor has great customer service and I would definitely come back to Maxon for serbice
by 2019 GMC ACADIA SLT-1 Owner on 01/23/2026Verified Service
Staff members did their usual thorough assessment. They found a problem with the front brakes as they did the tire rotation. Plus they found 2 more issues. The car rides so much better now.
by 2021 BUICK ENCLAVE AVENIR Owner on 12/27/2025Verified Service
Excellent service as always. Quick in and out, accurate assessment of vehicle needs and periodic discount on basic maintenance
by 2020 GMC TERRAIN SLE Owner on 12/21/2025Verified Service
The next morning after picking car up the check engine light came back on after keeping my car for 3 days with an appointment.
by Enrique D. on 12/19/2025Verified Purchase
Customer service was superb. They offered a very good orientation and looked for financial alternatives.
by Brian H. on 11/18/2025Verified Purchase
The Sakesman Derrick was very accommodating. The 'Finance Guy', Hany was affable and very easy to deal with. My experience was very positive!!! And the Vehicle, let's just say I've never seen another one like it! At any Dealer! Thanks Maxon GMC!!!
1 - 20 of 399 results

Service Information

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4,816 Customer Favorites

Customers who favorite a shop get free open recall alerts, service reminders, vehicle service history, & more!

Top Services Performed

Based on CARFAX Service History, Maxon Buick GMC specializes in these services, in addition to many others.

  • Auto Maintenance
  • Battery Service
  • Brake Service
  • Check Engine Light Diagnosis
  • Electrical Repair
  • Emissions Inspection
  • Engine Service & Repair
  • Exhaust
  • Full Service Auto Repair
  • Glass Repair & Replacement
  • Mechanical Repair
  • Muffler Repair
  • Oil Change
  • Steering & Suspension
  • Tire Rotation
  • Tire Service & Repair
  • Transmission Service & Repair
  • Wheel Alignment

Top Makes Serviced

Based on CARFAX Service History, Maxon Buick GMC specializes in these makes, in addition to many others.

  • Buick Services
    Buick
  • Cadillac Services
    Cadillac
  • Chevrolet Services
    Chevrolet
  • GMC Services
    GMC
  • Ram Services
    Ram

Shop Amenities

  • Complimentary Drinks
  • Free Wi-Fi

About Us

Get In Touch
Sales Information
New Car Sales: (908) 739-6763
Used Car Sales: (908) 201-8298
Today: Open until 8:00 PM
Sunday
Closed
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 - 8:00 PM
Service Information
Service: (908) 364-4005
Today: Closed until 8:00 AM on Tuesday
Sunday
Closed
Monday
8:00 AM - 5:00 PM
Tuesday
8:00 AM - 5:00 PM
Wednesday
8:00 AM - 5:00 PM
Thursday
8:00 AM - 5:00 PM
Friday
8:00 AM - 5:00 PM
Saturday
8:00 AM - 5:00 PM

Frequently Asked Questions

What do verified customers think about Maxon Buick GMC in Union, NJ?
Verified customers who visit Maxon Buick GMC in Union, NJ rate this business 4.3 out of 5 stars, with 399 reviews. 4,816 customers favorited this location.
How can I contact Maxon Buick GMC in Union, NJ?
To reach the sales team at Maxon Buick GMC in Union, NJ, call (908) 201-8298. To reach the service department, call (908) 364-4005
How can I schedule a service appointment with Maxon Buick GMC in Union, NJ?
You can schedule a service appointment at Maxon Buick GMC in Union, NJ through CARFAX.
What are the shop amenities offered by Maxon Buick GMC in Union, NJ?
Maxon Buick GMC in Union, NJ offers the following amenities: Complimentary Drinks and Free Wi-Fi.
Does Maxon Buick GMC in Union, NJ have a service center?
Yes, Maxon Buick GMC in Union, NJ does have a service center. You can contact the service department at (908) 364-4005.