It's been two years since I last wrote a Yelp review, but after such a great experience purchasing a used vehicle at Diamond Chevrolet GMC last night, I had to come back and give them 5 stars! We spent several weeks shopping for a truck and countless hours at dealerships dealing with people who couldn't answer basic questions or seemed more interested in making a sale than understanding our needs. After all of that, our experience here was a breath of fresh air. From the initial messages with Vince, to the test drive with David, to the negotiations with Delis, everything went smoothly. There was no pressure, no second-guessing, and no uncertainty--just a great team working together to find a deal that worked for everyone. We spent the most time with David, and he was awesome! He made the experience that much better, and we truly appreciated how easy and enjoyable the entire process was. If you're shopping for a vehicle, I highly recommend Diamond Chevrolet GMC! After weeks of frustrating experiences elsewhere, this dealership was exactly what we were hoping to find. read more

Very disappointing experience with the service department. I brought my 2020 Ford Explorer to Diamond Chevrolet GMC of Banning on August 24, 2026, for a parking brake warning/light issue. They kept my vehicle for approximately 17 days, until September 10. According to my service invoice, they replaced several parts, but the problem was not fixed. Their own technician documented that they could not perform the required diagnostic because they did not have the necessary diagnostic equipment. The invoice specifically recommended sending the vehicle to Ford for further diagnosis and repair. I was told Diamond needed to contact the warranty company and complete the necessary paperwork/authorization so I could have the vehicle repaired at a Ford dealership. That still has not been done. I have now been trying to contact the dealership for approximately a week, and I have not received a clear response or confirmation that they have contacted the warranty company. After having my vehicle for over two weeks, I don't think it is unreasonable to expect the dealership to complete the necessary warranty process so another authorized facility can finish the repair. I am not asking them to fix something they don't have the equipment to diagnose. I am simply asking them to submit the required documentation to the warranty company and release/authorize my vehicle for repair at Ford. I hope someone from management will take responsibility for this and get the warranty process completed. I would much rather update this review positively if the issue is resolved. read more

Beware!! I was recently at this location with my mother to have her car serviced. Just so you know I have tried for multiple days trying to reach a general manager and or service director and they bounce my calls around and tell me no one is available. I gave them a chance to stand in front of this and they didn't. I came up here with my mother as she was having work done on her vehicle. The service department claimed the brakes on my mom's car were bad and needed replaced..There were no pictures other then they were bad. I questioned this service tech and he stood behind that. So I took this vehicle to a AAA Authorized Auto Shop and it turns out the brakes had 70% or more pad left.. Pictures of the pads included with review.. I would hate to feel had I not been there with my mother that she would have been taken advantage of had someone who actually knows a bit about cars wasn't there.. I don't like leaving reviews like this, but people come to your business in good faith to get repairs and you embellish or lie about what actually needs to be done.. Instead of going the extra mile to earn trust and show proof and transparency that the work actually needs to be done.. read more

Diamond Chevrolet GMC - Brakes pulled off at a AAA Auto Repair Shop.. To Show that they aren't dangerous or needing to be replaced. Per Diamond Chevrolet Banning - Auto Parts & Supplies Near Me - Banning, California

Stellar! Yep these guys are the best in town. Cory Mitchum is parts department -knows his stuff, gets it done and is a total rockstar. Mike Alvarado is service manger -super friendly, on top of things and gets it done This dealership is why I go GM for all my vehicle read more

I have been contacted multiple times by this dealership with repeated attempts to lure me in to purchase a vehicle. Unfortunately, every single time I show up, there is always some excuse as to why they "cannot" sell the vehicle without mandatory add-ons such as a $995 ceramic coating, Apex security system, extended warranty, and other unnecessary extras I specifically stated I did not want. This has been a constant issue with this dealership -- high-pressure sales tactics and forcing add-ons onto customers. Extremely unprofessional and a complete waste of time. In California, it is illegal for a dealership to deceptively claim that non-factory add-ons are "mandatory" or required in order to purchase a vehicle. Consumers should be aware of these practices before wasting their time. To make matters worse, I'm still waiting nearly 5 years later for them to install the "security system" they charged me approximately $1,500 for on a previous purchase. Every time I follow up, I get the same runaround about bringing paperwork back in, despite the same salesman continuing to contact me and pretend we're friends whenever they want another sale. At this point, I will no longer do business with this dealership and highly recommend others proceed with caution. Very shady business practices and zero accountability. Don't go to this dealership. Save your time and money by visiting Orel Hersheiser Chevrolet in Chino. They will make you an out of the park deal without the headache. And to add to all of this of course somebody responds like an automated bot with a phone number that is not in service. This cracks me up. It's pathetic how this dealer ship operates. read more

Diamond Chevrolet GMC - A vehicle they marked up to 36k - Auto Parts & Supplies Near Me - Banning, California

Very bad customer service, the truth is you can't talk to the staff, the truth is I wouldn't come back here

Steven, our salesman, was incredibly helpful from start to finish. I was at work and didn't want to waste anyone's time if the deal wasn't going to work out. He and his sales manager were able to go over everything with me through phone and text, which I truly appreciated. I've purchased many cars over the years, and being able to handle most of the process from home was exceptional. Steven went above and beyond--he walked me through the vehicle's features and made sure I was fully set up with GMC. Many salespeople don't take that extra step anymore, so thank you, Steven, for your time and dedication. I also want to recognize the finance department. Megan made our experience just as enjoyable. We originally had a different finance company, and I mentioned I was hoping to go through GMC instead. She called the next morning to let us know she was able to switch us to GMC financing and secure a lower interest rate. That meant so much--thank you, Megan! Overall, it was a wonderful experience. I would absolutely recommend Diamond GMC to friends and family. Thank you for making our purchase easy, smooth, and enjoyable! read more

Diamond Chevrolet GMC - 2026 GMC Acadia - Auto Parts & Supplies Near Me - Banning, California

Took my 2020 Chevy Truck in for service and the new Service Director took care of me to make sure all repairs done to my truck were done correctly by the professional technicians at Diamond Chevrolet. I would highly recommend that you go in and see the new Director of Service and his team. read more

Diamond Chevrolet GMC - 2020,1966 Chevy Trucks - Auto Parts & Supplies Near Me - Banning, California

Thisoutfit contacted me in regards to purchasing my car. Made an offer in writing and dropped it by more than $2k when I arrived. Dishonest way to do business and waste of my time. Will share with family and friends in Banning, Beaumont, Redlands and Yucaipa areas. read more

Always dread having my car serviced here. Never greet you, never say hello or someone will be right with you. However, they do say good morning to other employees walking in. You stand there while multiple service writers don't acknowledge you until THEY are ready to. Just rude every single time. I saw an ad where it was under new management. Here I am again today, same rudeness, same ignoring me, nothings changed. If you don't like your job, find a new one. Very simple. Don't make me dread coming in. read more

Terrible customer service after your vehicle has been purchased. No follow up on issues, no sense of urgency and impossible to get a hold of the "right" person. Stay away! read more

Sending me AI voicemails about my vehicle overdue for servicing is one way to lose customers.

Dropped my truck off for a flow control Valve check engine light, it was covered under the extended warranty which took 2 days for approval after sitting there being checked for 3 days, They discovered the motor mounts were broken as well and of course a DEALER doesn't have the parts and had to order them with a 5 day lead time so they removed the cab of truck and replaced the flow Control valve and the motor mounts during the replacement process of the cab the side steps stopped working which added days, and power steering didn't work added another day, went to Pick up truck and another issue arose with when putting the cab back on they broke the dipstick tube and it was leaking oil bad and so it sat for another 5 days, and of course DEALER DIDNT HAVE PART AGAIN, during our inspection of truck we found 2 dents in the drivers door jam that was not there when it was dropped Off but, I have no photos of PROOF so they say its not their fault and THEY SAY not their problem but I know it was from when they took the Cab off truck frame, and finally picked it up after being at this crappy service department for 24 total days It was excuse after excuse on what was happening. Was told about they will make it up to me for it taking so long, LIE, truck was filthy, Didn't clean it at all left parts inside cab on floor with trash inside, and it was fn Empty on fuel. Do not go here for service, I will say with confidence they are the closest dealer to me but I would rather drive 100 miles out of my way then come back here..... Sorry not sorry read more

I bought my new truck from John. He was amazing got me the best deal in all of Southern California. I'm so happy with my new 1500!! read more

Diamond Chevrolet GMC - Auto Parts & Supplies Near Me - Banning, California

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Thank you service department for doing a great job on diagnosing and fixing my trucks electrical problem. Joe did the intake on my 2017 silverado and Emilio went the extra mile on getting my truck out the next day. Being a cancer patient that ment a lot with all my up comming appointments. Once again thank you for everything. read more

We recently traded in our Bolt for a Blazer and our experience was great. Tim helped us a lot. He offered waters, let us test drive and got us in touch with the right people to get us the deal we felt good about. Not to mention the great conversations we had throughout the day. We're very happy with our new car and we send big thanks to Tim and the team at Diamond Chevy in Banning! read more

Shelia the DMV clerk processed the paper work wrong. My temp registration expired on 3/13 and she barely submits it on 3/12. No sense of urgency or accuracy with this place read more

Diamond Chevrolet GMC - Auto Parts & Supplies Near Me - Banning, California

As a first time buyer who was nervous and didn't know what I was expecting, I definitely must say I had the greatest experience with Jovanny. He was very attentive , professional & had a warm welcoming vibe. He wasn't pressuring me into buying just any car which is what I was hoping for since I was just doing some window shopping at first. Jovanny was also very good at answering all my questions / concerns. Thanks to him I walked out with a new car that im completely in LOVE with. I hope to come and find him again when it's time to purchase a newer vehicle. I had a first time great experience at car shopping , He made it fast and easy and I feel like that's how everyone's experience should be . And to the best of his ability he gave me such an amazing deal I just can't thank him enough. read more

Diamond Chevrolet GMC - New car - Auto Parts & Supplies Near Me - Banning, California

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My name is Nick and I was having car issues my stabilizer light came on and I lost power. My transmission over heated and Cased me to loose power once my transmission cooled down the. I could proceed. I drove it to Diamond Chevrolet they charged me $280.00 to diagnose the problem the called me back 2 days later and said I need a New Transmission I new that was not right because I drove car to the Dealership. The Problem with my Transmission is what they call a Trans thermal cooling Valve which Diamond Chevrolet technician never checked. Diamond Chevrolet advised me it would be $8500.00 for a New Transmission and I purchased the Trans Cooloing Valve for $21.74 and I had it installed and now my vehicle runs great. This part goes out at around 80,000 miles and the Diamond Chevrolet could not Diagnose the problem. They just wanted to rip off the customer by selling the A New Transmission when the problem was a $21.74 dollar part I saved over $8,000 by not listening to what Diamond Chevrolet they take advantage of people and that's not right I do not recommend Diamond Chevrolet to anyone they are crooks like most dealerships. These people they call technicians they can't fix there own vehicles. they overcharge the customer and can't fix the problem. read more

My initial experience with Joe in the service department was awful. He was condescending, dismissive and disrespectful. I literally lost track of the number of time he "hon'd" me while setting me up for services that I may or may not have needed. I went in for an oil change and ultimately ended up with the oil change, spark plugs, transmission and radiator services. Joe assured me he'd communicate what was happening with my car and when it would be done. He also said that they closed at 5pm. I made sure he knew I needed my car that night as I needed to go to work that night. I never heard from Joe and at 4:30 I called to see what was happening. I left messages and called multiple times without ever getting a call back from Joe. I eventually spoke to someone who informed me they close at 6pm, not 5pm. After 5pm, I was finally able to speak to Joe and he informed me my car was now misfiring and they wanted to keep it overnight. I explained this was not possible. He stated the technician was next to him and they'd discuss and he'd call me back. At this point I got a ride to the dealership to speak to Joe directly. In the 20 mins it took me to get there, Joe did not call me back. It was 5:45 when I got to the dealership and still no new information from Joe. The technician was still figuring out what was wrong and Joe said it was grease in a coil and spark plugs so they were cleaning it out. A little after 6pm the technician came back up to the front and spoke to Joe. I went inside and Joe informed me my car was ready to go. At this point, he THEN STARTED working on my paperwork and by the time all was said and done it was 6:20 before I was finally out of the dealership. Absolute incompetence on the part of Joe. 0/5 stars for Joe. I drove my car to work that night and the next morning I wasn't able to drive my car home. It would start and then stall out. I ultimately had to have my car towed back to the dealership to be taken care of. The person I spoke to THIS time was Antonio and this was an entirely different experience. He LISTENED to me. He didn't dismiss what I said. He didn't "hun" me endlessly (or at all). He was NOTHING but respectful. He maintained communication with me regarding my car and how long it was taking. He didn't have me frantically trying to track him down for an update half an hour before they supposedly closed. After all was said and done, the technician inadvertently left a rag in my air filter housing box and did NOT replace the air filter. Thankfully it didn't get sucked into the engine and it was an easy enough thing to fix. Antonio was excellent and treated me the way I deserved to be treated. He made the situation right for me and he is the kind of person I would a want my daughter to interact with when the time comes for her to need car repairs. 5/5 stars for Antonio. Incidentally, in addition to Joes complete incompetence, he also blatantly lied to me. He told me that the service manager (Antonio) was helping the technician fix my car. I asked Antonio about this because he seemed completely unfamiliar with my car...he informed me he did NOT work the day before and was NOT helping the technician fix anything...and he is the only service manager. Again, 0/5 for Joe...5/5 for Antonio. read more

I have been calling everyday for the past 7 days trying to get a copy of my purchase agreement. Everytime I call, I am transferred to finance which always goes straight to voicemail and no one ever calls me back. They even said they had a man named Justin on the other line to help me and when they connected the call it went straight to voicemail. I bought a brand new car in 2024 and all I need is a copy of the purchase agreement which I am starting to believe they are purposely trying to keep it from me. This screenshot is only some of the calls as some were made on my husbands phone read more

Diamond Chevrolet GMC - Auto Parts & Supplies Near Me - Banning, California

Honestly such a great experience. I've bought a few cars from dealerships and they seriously set the bar, especially Jed. Jed worked with me as hard as possible to get me an amazing deal and never once made me feel pressured or as if I was being swindled. I got an amazing offer on my trade in and walked out with an amazing truck for a steal. The paperwork didn't take all that long but I was just itching to get out on the road in my, new to me, truck. The whole team was awesome but Jed really worked for this deal and was awesome to work with. Would definitely recommend family and friends to check them out. read more

Diamond Chevrolet GMC - Auto Parts & Supplies Near Me - Banning, California

I recommend 100 % this business . David Guerra ,bery and the financial advisor helps me a lot to get my first brand new car! They offered me a great deal read more

Diamond Chevrolet GMC - Chevy trax 2025 - Auto Parts & Supplies Near Me - Banning, California

I would rate if as a 0 stars if I could. I'm very disappointed with the service and especially with the finance manager Anthony B. I bought a car for cash and asked to register it as a commercial vehicle. Anthony told me not to worry since he knows what he is doing. However, he screwed the registration. Moreover, he did not send any paperwork to DMV for more than a month until I sent the complaint to both GMC and DMV. I would not recommend to deal with Diamond Chevrolet of Banning. Don't waste your time and money. read more

Alexiv Palomo finance manager was awesome! He's so personable and straight forward! He went above and beyond to help me finance my vehicle...I highly recommend working with him when you're looking to finance a new vehicle. Thank you Alexiv for making everything go so smooth. read more

Stay away from this dealership I purchased a new truck on12/14/2025 worked with a guy by the name Justin and to this day still have not received my new plate or registration and my temporary is about to expire. No call back or response. Will be contacting GM. Again stay away from these con artists. Checkout their reviews. read more

On a family vacation our truck needed a serious repair. We were suddenly stranded and delayed. Luckily, Emmanuel and team got us back on the road quickly - days ahead of the promised date - and under the original estimate. Thanks guys! read more

Ive leased twice from this dealership and all thanks to my Sale Rep Zee (and i plan on coming back for my 3rd when this one is up). Leasing can be long and uncomfortable and a scramble of numbers but Zee makes it so easy and understandable. He understood where i wanted to be money wise and made it happen. i went in wanting a Chevy Trax but after i test drove it i wasn't into any more. Zee showed me other options in my price range and I drove off in a Buick! (i would've never thought but it's so cute and i'm so in love with it, don't sleep on Buick!) And a huge shout out to Mario in Finance!! Thank you for making the paperwork portion seamless and understandable. great team, highly recommend on your next lease or purchase! read more

Diamond Chevrolet GMC - Buick Encore GX - Auto Parts & Supplies Near Me - Banning, California

David Guerra was a great salesman! He helped me finance my first vehicle with no issues!

We had a great experience working with Jovany on the purchase of our truck. He was professional, knowledgeable, and straightforward throughout the entire process. No pressure, no games--just clear communication and honest answers. Jovany made everything smooth from start to finish and took the time to make sure we got exactly what we needed. Highly recommend working with him if you're in the market for a vehicle. read more

We were greeted by an absolutely great team. I want to especially gave a huge thanks to jiovanni. He was fast to help us , answered all our questions and made this transaction absolutely great!!! We are thankful for you and thank you for working with us bringing home our new car !! read more

Diamond Chevrolet GMC - I am absolutely happy with our new purchase. Thank you, Jiovanni, for making this possible for us. - Auto Parts & Supplies Near Me - Banning, California

Giovanni was top notch sales person. He sat with us and explained everything. We talked about everything and he even prayed with us. "Thank you" Giovanni at Diamond chevrolet buick. You rock!!! read more

PLEASE FORWARD TO ALAM KHAN BAIT & SWITCH DEALERSHIP What happened tonight was absolutely insane. My husband and I drove an hour and 15 minutes from Bloomington, California to Banning to see a Mercedes that you guys have advertised as we approach at 5:50 for our 6 pm appointment krystal looks very nervous and says hold on. I'm gonna get Megan my sales manager. Megan sits us down & states I have good news and bad news bad news the car sold 10 minutes ago (yeah right) but good news we have other vehicles . My question is why were we not told the vehicle sold ? Let us know the vehicle sold 10 minutes ago so I could have had the choice to turn around and go home we wasted basically 2.5 hrs coming to this dealership . I feel like this is a sales tactic just to get me in the store. The sale was too good to be true and I should've listened to my instinct in the first place, but being a reputable dealer . I went in and I got burned. I am so disappointed with this place and I am absolutely disgusted by the sales tactic that you guys used tonight . Nothing was offered to me not even an apology and I spoke w Phil everyone just kind of looked at me stunned and surprised I was upset ? Get it together & do better for your customers STOP WITH THE GAMES AND STOP WASTING CUSTOMERS TIME AND GAS MONEY . Phil Megan & Krystal definitely all knew what was going on . SCAM DEALERSHIP DO NOT GO Bait & switch tactic was tried on me and my husband. I know they never had that car . read more

Stay away from this dealership they sell you cars that's not smog and then have you go and do it and another thing make sure you check the oil I purchased a car from them drove all the way to Arizona. It had no oil in. It went to the dealership here and they said are you kidding? This is dry as a bone this car dealer is nothing but a joke. read more

I recently brought my truck for an oil change and to address a coolant reservoir warning light on my dashboard. After dropping it off, I didn't hear anything for four days until I received a call saying the truck was ready for pickup. When I arrived to pick up my vehicle, I decided to inspect it. To my surprise, I noticed what appeared to be oil leaking from the newly replaced oil filter. I immediately brought it to the staff's attention, and they took the truck back into the shop--only to wipe the leaking oil off with a rag rather than actually addressing the issue. To make matters worse, less than an hour after leaving the dealership, the coolant warning light came back on, despite the invoice claiming that the reservoir and sensor had been replaced. This service cost an outrageous $1,100, and yet the original problems remain unresolved. The lack of quality and attention to detail is extremely frustrating, and I'm left questioning whether my vehicle was properly serviced at all. I expected far better from a professional service department. I hope others carefully consider this experience before bringing their vehicle here for service. read more

Diamond Chevrolet GMC - Auto Parts & Supplies Near Me - Banning, California

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Don't lie!! Quoted $5,000 to fix ALL SORTS of things on our 2017 Buick encore...NOT!! Took it to another mechanic that looked into everything that supposedly was wrong with it...ALL LIES! $1,200 later it's all fixed!!!! read more

Great deal very happy with sales team. Would definitely recommend dealership to friends and family who are interested in buying a new vehicle. read more

Undesirable Customer Support Like any other sales place, the people seem really nice, but the overall experience is yet to be desired and arguably dismissive. The sales manager, VJ, is a nice enough guy when you speak with him, but overall results are just that. I purchased a 2023 Canyon GMC in September 2023 ($50K). On Dec 12, I had to have the vehicle towed back to the dealership due to an electrical issue. The dealer stated that no loaners were available, and when asked, they were not able to drop my vehicle at my residence either when finished. I was able to find a ride and retrieve my vehicle on Dec 15. Ricky Ramirez (Service Tech) stated the radio was causing a parasitic draw and fried an electrical module. He stated they replaced the module and updated the software that allegedly fixed the root issue of the electrical failure. On Dec 26, my vehicle suffered another electrical issue, which resulted in it being towed back to the dealership. I was told by Ricky Ramirez again that no loaner vehicle was available, but they could arrange for me to rent a car at Hertz at my expense up front, and they would "cut me a check in a day or two" after I submitted the receipt. Ricky also told me that only one electrical technician supported the entire facility and was on vacation until Jan 2. So in short, my vehicle will be sitting for a week before anyone can even look at it. CONCERNS: I was under the impression that any mechanic working at a dealership was certified to look at any vehicle at any level and not just need to be a specialist as an electric tech. Curious to know why only one technician is qualified to work on the electrical systems for an entire dealership. Given the fact there's only one technician supporting the entire facility and new cars are moving more into electrical dependency, supports the fact that management is again at fault for not having the foresight for maintaining good operational continuity and customer support. The fact that my contract includes a loaner in it is because new vehicles are not supposed to be breaking down. But when they do, you don't leave your customers hanging without a vehicle after spending good money on it. Further more the fact they don't have a loaner available brings into question either they don't have any or there are so many vehicles under warranty that are being repaired, they're unable to sustain customer support. Again supporting the failure of management foresight. SUMMARY: The level of customer interaction from Ricky and VJ were great. I know Ricky and VJ do their best, however, the Management business model for operational support is highly questionable, and with that the incompetence level with management is arguably high. After opening a case with GM Corporate and the Better Business Bureau, I hope for a practical and complete resolution. Lastly, given the multiple poor reviews, I hope people read these before giving any business to Diamond Chevrolet. Jan 3, 2024 - UPDATE I was contacted by Ricky stating they have changed their relationship with Hertz and will allow me to rent a vehicle without having to front any money. Bad news is they still don't know what's wrong with the Canyon on what caused the electrical failure. Jan 12, 2024 - Update I was able to retrieve my vehicle after being in the shop since December 26th. The service team did wash and topped me off with fuel. The invoice had a small discrepancy where the mileage was missing 30 miles. Meaning when I turned it in the mileage read 3990. When I went to pick up the vehicle the invoice stated 4026, but the odometer read 4057. I had the young lady in the service dept handling the paperwork change it, but she was only able to whiteout the old and hand enter the correct numbers. She was also kind enough to initial and date it. The concern regarding this, is invoice does not account for all 60 miles in the notes, but at least they filled it up with gas before giving it back. I'll take the small victories where I can get them at this point. read more

Diamond Chevrolet GMC - Mileage corrected before leaving the dealership service dept. - Auto Parts & Supplies Near Me - Banning, California

Bought a GMC Canyon AT4 in January 1st, 2022. Bought extended warranty and GAP. In October of 2024, I had gone to Diamond to cancel the GAP and Extended Warranty. Finance department employees and managers are bunch of liars. It's been a year later and have yet to receive my refund for the extended warranty. Chris has not return my phone calls have been passed to other employees and never get a follow through. Don't buy from them they will cheat you out of your money and all they want is to sell you a vehicle they can careless after the fact. Fraudsters doing what they do best! read more

Alexiv was awesome!! No haggle, straight shooter, kind of guy. Called him about pricing. He gave me the best price over the phone with the exact terms I wanted. read more