Customer Testimonials
Marvin is extremely knowledgeable and has great customer service skills. Always calls and text with updates when my truck is in for service. Over all a great guy to deal with. Whatever your paying him its not enough. Dude definitely deserves a raise.
The representative Joe handled my maintenance service on 9/28. He know about my car's services very well. He is very diligent and professional. Also has a very pleasant personality with good manner. The above appointment was set with Tanya on 9/25. Tanya also very pleasant personality and professional with good manner.
Very nice service attendants that are trustworthy and dependable to deliver good work and great service.
Tanya was great. She offered me the best service package, based off the required maintenance.
Well, Daniel was nice but communication its important even if you are trying to do your best. I had to go to the dealer on Saturday to find out Danny wasn't working but luckily someone else helped me. I dropped off the car on Thursday and didn't hear from Daniel until Monday. At that time he told me what was the problem and had my rental ready. That was great but even if he didn't know a phone call would had been nice so I didn't have to waste gas. I also had to pay for ... Read More 
DealerRater - Sep 27, 2026
He and the dealership Friendly, professional and quick no waiting and clean knowledgeable and easy to make an appointment
Very good service experience. The service department staff were very helpful. In and out very quickly
Marvin is fantastic, he is professional, knowledgeable and has great communication. It is always a pleasure to deal with him when we bring in our vehicles.
Marvin was great ! He was nice, attentive and helpful.
Best dealership if you’re in the market for a new Chevrolet. Spoke with Mike over the phone about stepping into a new 2026 Silverado and the very next morning Jesse showed up at my doorstep with my new truck. Easy transaction with a few papers to sign and they drove off in my old truck. Thank you guys for the convenience and a great price.
Hands down the best dealership I’ve ever had the pleasure of doing business with. From the moment you arrive, you are never pressured by the sales team. The lineup of vehicles is organized so you know exactly where to find what you’re looking for. I have purchased several trucks from Sierra and I actually have one being delivered to my doorstep today. Thank you to the entire team at Sierra.
It was good service I will be back for continued service this was a good experience
Service advisor was truly accommodating and helpful.
Service experience was uneventful. Disappointed that 7AM appointment required over two hours, but otherwise satisfied. Waiting area was clean. Appreciate coffee availability.
Great service provided every time we have an appointment. Tanya is amazing at what she does. Always very attentive and accommodating. We were given an estimated time to wait and our services were finished within that time frame.
Tanya was very courteous and helpful with all my questions and concerns. Very good work.
I had experienced an exceptional customer service by Tania. It is always a pleasure to come to her desk.
I know the place per several years and they have always a very good service! Tanya is the best. I Recommended!!
Tanya was amazing and very knowledgeable!! She was very thorough with what was goi g to be done on my car.
Danny took the time to thoroughly address all of my car’s needs in a timely and professional manner. He kept me informed and updated throughout the entire process. I would highly recommend his services!
I took back my car to get check the mildew smell from the air conditioning ( they supposed to clean it in March. I paid over $300.00 dollars for the service and the smell came back to months later.
And all I got from the technician was that he didn’t find anything wrong with the car, when the smell was very obvious. Marvin told me if I want to have clean again I have to pay for the same thing again.
I had have several cars in the past and never had any problems with the same issue. The least that ... Read More 
DealerRater - Sep 13, 2026
I Love Sierra Cheverolet, They always take good care of me. Everyone that I have ever dealt with at Sierra always treats me with respect, and care.
Great dealership. Very clear communication and excellent repair jobs. Hourly rate is on the higher side but all the folks who work here are really really great. Would recommend.
Went in for a tire replacement. They checked me in and said it should be done that afternoon. It was not due to the tire needed was delayed until late the next day.
Great service and all salesman they were very helpful great sales manager and the financial person was great no pressure from any one
Tayna is good customer service as advisor. Sierra Chevrolet mornovia clean and friendly and nice people
Tanya Ruiz was very pleasant and kind. Tanys's communication was impeccable! She tended to my needs to service my 2019 Chevrolet Colorado. She responded to my inquiries in a timely fashion and recommended a detailed report of their findings. I've been a customer of Sierra Chevrolet for six years. The service department is very reliable and trustworthy. Highly recommended!
Question and concerns were taken care of in a timely manner. Very professional, helpful and kind. Quick reminder about rewards point came clutch on saving. That’s a perfect 10 for me.. on top off great personality
Tanya provided me the best customer experience I've had in a long time. Tanya is professional, compassionate, and definitely has my satisfaction in mind. Tanya Ruiz is a breath of fresh air in these days of declining customer service.
We always receive great service from Abe; he greets us warmly, keeps us updated, provides timely answers to our questions, and charges our car before we pick it up.
Amdrew was knowledgeable honest effective and efficient in handling my online, email and phone inquiry and purchase - fair price state tax credit and dealer incentives made clear and delivered without drama or haggling- transaction completed and Bolt delivered within 48 hours of mu inquiry
Reliable and very profession Issue was solved very quickly, highly recommended to others Thank you
My wife and I have have been Sierra Chevrolet clients since 2007 and have never had any issues at all with sales and service personnel. Great dealership in all aspects..
I am very satisfied with Sierra Chevrolet dealership. And with their service department, Especially... with Danny Rodriguez. In the Service department He is very helpful in any questions I have asked.
The best service department I have been to and this is why I continue to go back.
Salesperson was not forthcoming about damages on a used ev over the phone. Purposely left out damage images in photos and video. Set up a meeting with salesperson prior, telling him we would rent a car and drive up to check it out. He never discolsed any of the MANY damages. Rented a car and drove over 2 hours to see car only to find multiple serious issues. Left after about 10 minutes of viewing a multitude of very odd dents, debris rattling around in rear lift gate, cigarette hole in seat, offset exterior trim that looked like could have been accident ... Read More 
DealerRater - Aug 31, 2026
no deal. Manager was great. sales person, not so much. Too pushy and stand offish.
Poor service advice and unnecessary charges and did not check the breaks at all reason for service is for breaking noise did not fixed the issue I am still having the problem
My recent service experience at Sierra Chevrolet was truly outstanding and quite a refreshing change from my experiences at other brands' dealerships. Highly recommended!
We were on our way in our motorhome heading out on a vacation when we had a check engine light reporting an engine issue. We limped our way to Sierra Chevrolet where Tanya went above and beyond her duties making sure we were able to have our rig looked at and serviced at a moments notice. It was late in the day but she was able to have one of the diesel service techs look at our motorhome and make the necessary repairs late in the day and at the closing time were able to get us back on the ... Read More 
DealerRater - Aug 30, 2026
Excellent customer service, highly recommended to all of my friends and relatives. Thanks Sierra chevrolet!
Very good place to have you car work done and the service advisor very pleasant to work with
The service advisor was helpful and took care of my needs. Will definitely come back to get my vehicle service
Thank you for the great service. Tanya was very helpful getting me set up for my vehicles maintenance service.
Fast, easy and friendly service at this Chevy location. My first time coming here and we plan to move to Monrovia in the near future so I will definitely be bringing my car back here for any future repairs.
Nice and friendly, only critique is paying for top of of all fluids and then still having no windshield wiper fluid.
Andrew handled the phone and email transaction with knowledge and efficiency. He was easy to reach and prompt and direct in his responses. High marks for convenience and value on both the service and product side. Time and money and we love the Bolt!
I came in for a $60 oil change and $20 tire rotation. I was not given an estimate. My bill came to $157.97. Maria emailed me that there was a documentation problem with my visit. I have called her 3 times and she still hasn’t returned my call.
Joe in service knew what my problem was and was able to diagnose it right away.
Since I have been going here I have had nothing but excellent service from Danny and everyone else and my car is running wonderfully.
Had windshield wipers and hatchback struts replaced with aftermarket parts that I bought. Job was done quickly, no problems.
Had my truck in and out for basic maintenance in under an hour. Supreme customer service.
I recently purchased a Corvette. The sales process was choppy. The financing contracting was raced,, the car was not detailed very well. It was a brand new car that couldn’t even get it clean. A few few days later, I asked for a confirmation that the card was paid off because I paid cash and I never did receive a follow up. And to make things worse, I tried to order another brand new car and that was on 83 that they were gonna give me a confirmation. I’ve never heard of Word so I’ve decided to take ... Read More 
DealerRater - Aug 12, 2026
Danny was incredibly attentive when assessing my vehicle and kept me informed with great communication throughout the entire process. He was professional, thorough, and made the experience easy and stress-free.
The service is great and incredibly quick. Tanya is always my preferred service advisor, she is very communicative and always pleasant to talk to!
EZ is good. The 1st service on my truck went smoothly. Thank you good people. 🙂
I received excellent service from Marvin Orellana at Sierra Chevrolet of Monrovia. The appointment was easy to book, I was seen immediately upon arrival, they offered me a ride to a coffee shop so I could work, and they notified me when the car was ready to pick up. Paperwork was easy, too! Overall, it was an easy, seamless experience. Thank you!
It was very easy to make an appointment and get the service I needed. Word
Jerry is the best salesman! I recommend going to him to get a car/truck.
I signed the paperwork under 5 minutes. For the next 30-minutes I got to enjoy learning about my new Electric car. Doug was great! So good that I am working on a second purchase.
Friendly, helpfull, informative. That sumes it up. They also work with me to help me save money. That’s a big help, as I am on a fixed income.
They didn’t try to add secret menu items to a used vehicle and sold it for the listed price!
Service reps are professional, knowledgeable & friendly. If there's any way of applying discounts they will let you know.
Excellent work always at Sierra Chevrolet. Tanya always handles any issues with our department vehicles. She is very attentive to detail and our concerns.
Prompt, polite, efficient, did what they said they would and on time, cost was modest
Service center completed the work on my Traverse and truck is running smooth. Customer friendly and knowledgeable service department.
Friendly staff. Tanya actually recommended to do scrub free when I asked for complimentary wash for the vette. Also gave me promotional event deal that had more services and discounts than the coupon I presented for oil change only.
Mike said Andrew helped me with the purchase of my silverado 2500 trailboss! Super happy.
Grease print on hood. This has happened many times before. Apparently if you bring in a service truck, the mechanic feels obliged to leave grease prints on the body. I specifically asked that there be no grease prints on the hood when I dropped it off.
I also requested the truck be washed. It wasn’t.
The washer fluid reservoir was empty.
Seems to me the department isn’t being run very well.
These things were taken care of on the spot after I pointed them out.
Since it seemed that the service wasn’t handled correctly, I had doubt ... Read More 
DealerRater - Aug 2, 2026
Tanya and the service department is so helpful and prompt. They finish repairs quickly and thoroughly.
Over the years, I have chosen your dealership for all of my vehicle purchases because I valued the service and trusted your team. As a loyal customer, I expected a higher level of communication, professionalism, and customer care than what I recently experienced. What has been most disappointing is not only the issue itself but also how it was handled. I left feeling that my concerns were not given the attention they deserved. Loyalty is built on trust and consistency, and this experience has caused me to question whether my business is truly valued.
Joe was magnificent. He helped me out quickly and got me on my way. He made some helpful suggestions and helped me understand the services needed. Thank you for all your help. Will definetly recommend.
Joe was very pleasant. After my quick info, he knew exactly what was wrong with my issue. Very friendly and knowledgeable.
Sierra and Danny have been the best for us and I will always bring my car here when needed.
The salesman Edwin was wonderful! I will definitely recommend him to family and friends. I might possibly be purchasing later this year and will go back. Best car buying experience I have had so far.
Friendly staff, fast service, great location, definitely I recommend this dealership for services on your car!
Joe provided excellent service, went in for a check engine light service. Joe kept great communication with me throughout service. Check engine light no longer on. Excellent service.
Very professional and friendly. He explained the work to me and kept me informed. Called me back when I texted him because I had a question.
Great service from start to finish! Brought my vehicle in for its oil change and new tires and had the pleasure of working with Tanya, From the moment I pulled in she was incredibly welcoming and professional! Tanya explained exactly what the factory service entailed, and gave me an accurate price estimate upfront. 10/10 service! Thank you Tanya for your exceptional service as always! Dora
I enjoyed working with Joe. He was informative and helpful. I appreciated that he was looking at bigger service items down the road.
Average dealership, sales person was OK and financial guy, but they only gave me one key to my vehicle. I hope I don’t break down or lock my key in the car. I asked for a second key and I’m still waiting.
Marvin at Sierra Chevrolet of Monrovia is the best. He treats you like a friend, not just a customer, and he genuinely takes care of your truck's needs. When he says it'll be ready in an hour, it's done before the hour is even up. He always finds the best deals to keep your truck running dependable and looking great. If you want someone who's honest, fast, and treats you right, ask for Marvin.
My experience at the service in the dealership was very pleasant. Service was prompt.. Very courteous employees.
Marvin is outstanding, and I truly appreciate his professionalism, positive attitude, and commitment to exceptional customer service. He consistently communicates effectively, keeping me informed throughout the repair process and ensuring complete transparency every step of the way. Marvin goes above and beyond to take care of his customers, building trust through his dedication and attention to detail. It is always a pleasure working with him, and his efforts make a meaningful impact on both the customer experience and our team's success.
My service advisor Abraham was kind and efficient. I was in and out in an hour and 15 minutes to get an oil change and an estimate on tires. Great job!
The service department has been amazing to work with. Daniel is always on top of updates and keeping consistent communication.
Worst service ever . Do not go here for any transmission or engine troubles. I left my car for days for “ diagnosing “ just to be told there was nothing found . When I picked up my vehicle it had the same amount of miles it had when I first dropped it off. No wonder they didn’t find anything because they didn’t check ! I purchased and oil change and engine cleaning and they didn’t even put the new mileage sticker for the next service . If I could give them a 0 I would . The same day I picked up my vehicle ... Read More 
DealerRater - Jul 19, 2026
I made an appointment for Tuesday and was asked to move it up to Saturday because the tires would be in stock. Got there Saturday and they didn’t have the tires and were short staffed so couldn’t go pick up the tires. I was told the tires would be ready by Monday or Tuesday. On tuesday was informed the techs had ripped one of the tires during installation but would not be able to get a replacement until the following day. Overall dropped off my car for 2 new front tires on Saturday and the car wasn’t ready ... Read More 
DealerRater - Jul 18, 2026
IDoug Sievertson was a pleasure to work with. He consistently met deadlines, communicated clearly, and was extremely accommodating when timing issues came up. Doug’s professionalism and willingness to work with us made the entire process smooth and efficient. I highly recommend him for his reliability and excellent customer service.
Excellent service, friendly staff, transparent pricing, smooth buying experience, and a team that truly values customers.
They were courteous and professional. Clean and neat service lounge to wait during the vehicle service.
Service adviser was great very knowledgeable and fast to attend me. Couldn’t be more happier with her service
Great Customer Service. went in with an appointment and I was there for an hour.
El personal no me gusto como me trataron siento que no me ayudaron espere mucho
Get the job done and they listen to you and help you out with everything in any car purchase and also help you to get the car to you if you are far away, anything that you ask they will get it done.
Great service
Everyone is outstanding help and willing to get things done in the time frame they do have
I chatted with someone about making a deal and whoever it was was very confusing. it felt like multiple people were trying to work a deal with me. I had one offer at a good price and then the next day they refused to honor it. They also try to sell you a bunch of extras that are unnecessary and way over-priced. Also tried to ask the finance guy a question after the sale and he refuses to take my calls or call back.