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    STG Auto Group of Montclair

    2.5 (1.8k reviews)
    Closed 9:00 am - 9:00 pm

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    The front of their entrance
    Karim B.

    Ok so this place is awesome if you want to sell your car to them. I was approached by Mohammed and Hazem over text for $21k on a car with 91k miles. The interaction with them even before walking in was super respectful and they were very patient because I couldn't sell right away. But even though they weren't there when I walked in, their colleague Danny helped me out with the deal and he was as great as Mohammed and Hazem. They do real inspections of the car. And when they come back, they show you pictures of the problem. And they tell you an offer. I asked if they can do more and they did budge a bit more but couldn't get close to the original $21k offer due to two issues I wasn't aware of (so that's very respectable). they also didn't significantly drop their offer NOR did they make it sound like you had a trashy car , just because of the two issues (one with the tire and leaking axel ). The process is easy. 45 min inspection. Paperwork took another 30 mins, negotiating can increase your time there. You sign all the documents to allow them to do the dmv paperwork. And don't worry if you have a lien on your car, they do the math and cut you the check based on what you owe and they handle it with your lender. They are very friendly and super nice. The facility is super clean and welcoming. They had the TVs set to the World Cup matches.

    Just the business logo
    Ang E.

    Just for an oil change, I waited over 3 hours with little to no communication unless I asked for an update. Every time I've made an appointment here, I'm never actually seen at my scheduled time. I'm a very understanding and patient customer, but when it's consistently hours past your appointment, it becomes frustrating. I'd say if you schedule any service here, don't plan anything else for the day because you'll likely be waiting a long time. It's better to come expecting a full-day wait. The staff is nice, and I do appreciate the service advisors, but I'm just being honest about the wait times.

    Bye buddy

    professional, reliable, and really hard working Great experience Sold them my mustang and now getting a tesla! Jayden was amazing from start to finish. Thank you my boy

    If you're looking into a dealership that is very pushy and does not respect your communication, then this is definitely a place for you. I was in the market to look for a new vehicle & I came across this dealership online. They did have a car that I was interested in, so I set up an appointment. On my way to my appointment, my car broke down from the freeway. Also, I was coming from close to 50 miles away. I informed the dealership about my situation and I had 2 different salesmen messaging me: Noah & Cesar. My car actually had broke down on the side of the freeway where steam was coming out of my car. I understand that Noah desperately wants to me a sale but he would not respect or understand my situation. He only wants to make sure he put money in his pocket. That being said, it's completely up to you if you want to work with them. I haven't even step foot into that dealership & I definitely know I will never do so after this experience.

    Daniel M.

    1 Star - Stay away from STG Auto Group Bought an Acura RDX here on 3/13/26 and it was hands down the worst car-buying experience I've ever had. They lied about add-ons being mandatory, claiming we needed them to get a lower interest rate. That's not true. I even found paperwork during signing that clearly said the add-ons were optional. When I questioned it, the salesperson literally admitted he doesn't like working there because of how they do business. They also told me dealers can't mark up interest rates in California anymore, which is false. Later, someone from their team accidentally confirmed the bank approved me at a LOWER rate than what I was given. We put $5,000 down ($2,700 cash), and they refused to give a receipt for the cash. The car had a brake issue the SAME DAY we drove it home (braking on its own + warning light). It's now been in their shop for almost 3 weeks with: no updates conflicting stories constant runaround I was hung up on by their finance manager and even dealt with someone who gave me info and later turned out they have me a name of someone that did not even work there. This place has zero integrity. Just pressure tactics, lies, and terrible service after the sale. Save yourself the headache--go somewhere else. These guys are scammers: Sales: Georgio (should be how you spell it) Sales Manager: Anthony (bald with tattoos on his neck) Financial Manager: Chris A. (Very childish when speaking to you, over talks you and hangs up on you mid conversation) Fake guy: Tony Suarez

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    25 days ago

    Jayden was a dream to work with. Was able to get me a higher offer on my vehicle when I sold it to STG.

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    Review Highlights - STG Auto Group of Montclair

    I highly highly recommend Joseph Isaak to anyone and I'll always recommend him when anyone is shopping for a car.

    Mentioned in 18 reviews

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    I'd like to thank the team at Mountain View Chevrolet for providing great service. My service…read moreadvisor Jonathan is very professional and knowledgeable. He keeps me updated as to what's going on with my car and upcoming maintenance that I need to prepare for. I recommend Mountain View Chevrolet. Thank you!

    Horrible experience. I left my car on a Friday morning around 8:30am. My front brakes have been…read moresqueaking. I had to call them around 3pm because I have not received any information. I was told the mechanic drove my car around the neighborhood and could not hear a sound. They wanted to take the tires off to check the brake pads but they couldn't because the specialized socket wrench sized to fit my specific wheels was missing. When I left my car there, they never asked for this tool. I let them know that it's in the car not sure where but it's in there. They said they'll search for it. I was told to leave my car over the weekend so they could "try" to take a look at it and maybe use a special tool to take my tires off. Monday comes around my husband, had to go into work late because he had to drop me off. I go straight to my advisor Jonathan Peña and he lets me know that the car has not been touched since they didn't have the tool to take off my tires. He said, we can take a look at your car, but we will have to brake it. Why would I want my brand new car broken!? I informed him that the tool he's looking for is in my car. I went straight to my car and I found it right away. After waiting hours in the waiting area they finally took my tires off letting me know that the two front brakes were overheating at one point. Mind you this is a 2025 suburban. Brand new. This car is a family car. I use it for school drop off , pick up, runs to the grocery store and sports nothing crazy. I asked why is my brand new car already squeaking he said, it could be because of the way I drive. I assured him it's not driving. Then he said it's the way the manufacturers are making cars these days. They make brake pads too soft. I was told I should have all 4 bake rotors sanded Jonathan verbally quoted me 540. I asked, why have the back two tires done when they are perfectly fine so then he quoted me 390 for the two front brakes. After having that done two days later, I come back because they're still squeaking. I was told to go on a drive with the mechanic. We barely left the driveway and the mechanic said, oh it's coming from the back brakes. Make a U-turn and head back to the dealership. As soon as I got out of my car, I asked how is it that you heard it from the back when I hear it from the front. He proceeded to tell me this is his job and he's been doing this for years and look at the back brakes. He continued saying, there's a shiny coat on the routers that the manufacturers put on. That's what's making it squeak. I went back to Jonathan to let him know the mechanic thought it was coming from the back and what I thought I was hearing. Jonathan then quoted me again 390 to have the two back routers sanded. I asked, how is It 390 for the 2 back brakes when you quoted me 540 for all four the other day? He said he never quoted me 540. I kept insisting that he did. Why would I be making this up? I was told to come back the following day so they could take the tires off again. So coming back for a third time Jonathan and the mechanic drove my car around the neighborhood. He concluded that it was coming from the front and not the back. Again, I sat in the waiting area for SIX hours, only for them to put lubricant on my two front brakes. At one point I had to ask how much longer because I had to pick up my kids from school. They couldn't even find the mechanic. I was late to pick up my children from elementary school and junior high. After everything was set and done, I asked Jonathan how long will the lubricate last he said, the duration of my brakes. I wanted to make sure that this was put in writing. So I asked him the same question in front of the secretary, and he said the complete opposite . He can't guarantee that my brakes won't squeak again because of the way I drive even though he has no idea how I drive. I got so many excuses as to why my brakes have been squeaking to the way I drive, to the pads being too soft, and to the manufacturer, putting a shiny coat over the routers. Women beware because they will blame your driving. They will try to charge you for something that does not need to be fixed. They will call you a liar and If you go there with no knowledge of cars, they will take advantage.

    STG Auto Group of Montclair - usedcardealers - Updated August 2026

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