Sierra Nissan of Duarte

Sierra Nissan’s service department is the worst I’ve ever dealt with. From the beginning, I was misled, ignored, and left stranded. Andre told me I didn’t need an appointment and would have a loaner car—yet when I arrived, he had left early and no one could help. I had to bring my car in again on a Saturday only to find out it had never been looked at all day and I would be without my car for the rest of the weekend. This same pattern of zero communication and broken promises repeated for days. My car sat untouched while calls and texts went unanswered. When the GM finally stepped in after a call and email, he was the only one who showed any urgency—but only after I pressed him. Even then, the department misdiagnosed my car, tried to bill me $1,200 for unnecessary labor, and then attempted to upsell me a $6,800 transmission. I had to escalate directly to Nissan and another dealership just to get fair treatment. The final insult: being forced to refill a loaner to “full” when it was handed to me at 3/4 full, then being waved off with “ok, take care of yourself” after returning it while my car was towed away. I wasn’t offered a ride home even after Andre asked me if I had one and told him no. That’s the “customer service” Sierra Nissan provides. This service department is dishonest, unprofessional, and incapable of basic customer care. If you value your time, money, or sanity, avoid Sierra Nissan at all costs. I ended up going to Fontana Nissan where they treated me with respect and like family. Because of that, I bought another pathfinder from them.

Nightmare service department experience. I brought my car in because the check engine light came on and my car, on occasion, would shake a little when idling. As soon as this happened, I called over to Sierra Nissan, as I was so happy to see another Nissan dealership open up in the area. I was helped by Andre who let me know that I could bring my car in the next day after work (by 4 PM). I asked if I needed to make an appointment and he said it wasn’t necessary and would be able to put me in a loaner while my car was diagnosed the following day. I came in the next day a couple minutes after 4, only to find that Andre had left early that day and never communicated with me that he wouldn’t be there. The other service guy told me I could leave my car, but could not get a loaner because the person who does that had left for the day as well. He told me I could bring my car the next day, Friday, but I had work and couldn’t be without a car. He then told me I could come in on Saturday and leave it and it would most likely be fixed by the end of the day if I brought it in early in the morning. I again asked if I should make an appointment and was told no. I brought my car in on that Saturday and was the third person in line. After being helped by Andre, he told me he would update me on what the issue was with the car. I texted him three hours later when I hadn’t heard anything; I wanted to find out if they were going to need my car through the weekend and if so, if I could get a loaner. He never returned my text so I had to call back a couple hours later only to find out that the service department would close in 45 minutes and no one had ever even looked at my car despite it being the third car in in the morning. I asked for a loaner and was told that I could not get one as that person was gone for the weekend. I was obviously upset because simple communication could have prevented this issue. Andre offered nothing in terms of trying to make up for his lack of communication other than an Uber ride to work on Monday. (I have a kid to get to school and I share my car with my son who works). At that point I checked to see if there were any rental car companies in the area still open, but they had all closed two hours before. I was without a car and my car was in service all day without having been looked at. I called the general manager of the dealership and was told I would get a callback after leaving a message, but that never happened. I wrote an email to him Saturday evening to which he responded the next day. After relaying all of the issues I had experienced so far, Peter, the GM, apologized and hoped to make it right by making sure my car was looked at first thing Monday morning. When I asked about the possibility of a loaner since Andre‘s lack of communication had left me without one, Peter said there wasn’t anything he could do as the person responsible for doing all of the loaners wouldn’t be in until Monday morning. After pushing him to make this situation right by letting me borrow one of the MANY cars sitting on the dealership’s lot, he finally acquiesced and was able to get me something to borrow so I could take my 11-year-old son and his friends out for my son’s birthday. The only condition was that I needed to bring it back the next day for an actual loaner. While I wasn’t happy that I needed to be the problem solver in this situation, I found Peter’s attention in this matter to be quick and more helpful than anyone else’s that I encountered at Sierra Nissan. I was told that my car needed a new valve body. After installing it, they discovered it was the transmission and said they would have to take the valve body out and charge me $1200 for labor or if I agreed to do the transmission with them then they wouldn’t charge me at all for the work they had done on a misdiagnosis. After contacting Nissan myself, I towed my car to Fontana Nissan where I traded my car in and purchased a 2024 Pathfinder. Avoid Sierra Nissan!

I recently purchased a 2025 Nissan Kicks from Sierra Nissan of Duarte, and I couldn’t be happier with the experience! Alex was incredibly helpful, professional, and made the entire process smooth and stress-free. He answered all my questions, was patient, and truly went above and beyond to ensure I was confident and comfortable with my purchase. The team at Sierra Nissan made me feel welcomed from the moment I walked in, and Alex’s customer service was top-notch. If you’re looking for a new car and want a great experience, I highly recommend visiting Sierra Nissan of Duarte and asking for Alex!

My experience at Sierra Nissan of Duarte was absolutely amazing. My sales associate & finance manager Melvin Tjia was VERY knowledgeable and made the entire process seamless. I will most definitely continue to highly recommend all my friends and family to shop here at Sierra Nissan!

Alex was amazing! He helped me get my new Nissan Ariya with zero stress. Super knowledgeable, friendly, and got me an awesome deal. Definitely the guy to see at Nissan!

I am writing to share a deeply unsatisfactory experience I had with this dealership. We purchased a 2024 BMW X3 from you, and it was sold to us damaged and undrivable. Despite my attempts to resolve this issue, including speaking with their General Manager, Peter, I have been consistently refused assistance and given a runaround. Do not waste your hard earned money from this dealer. You sacrificed for that money do not buy any car from this establishment, go to another dealer instead. The bad customer service and unwillingness to address a significant problem with a vehicle purchased from your establishment is unacceptable. I strongly advise any prospective buyers to avoid this dealership if they value their peace of mind and hard-earned money

I am writing to share a deeply unsatisfactory experience I had with this dealership. We purchased a 2024 BMW X3 from them, and it was sold to us damaged and undrivable. Despite my attempts to resolve this issue, including speaking with their General Manager, Peter, I have been consistently refused assistance and given a runaround. Do not waste your hard earned money from this dealer. You sacrificed for that money do not buy any car from this establishment, go to another dealer instead. The bad customer service and unwillingness to address a significant problem with a vehicle purchased from your establishment is unacceptable. I strongly advise any prospective buyers to avoid this dealership if they value their peace of mind and hard-earned money