Customer Testimonials
Will Cruz was my immediate manager He sexually harassed me and wrongfully terminated me for speaking up against him . The dealership only protected him and said they wouldn’t get rid of him even though I proved of the harassment in person . He has been doing this to other woman .
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.
My service call is still ongoing. We are waiting to install a part from the factory.
Clean, modern, efficiently run, with friendly and helpful and informative service staff to help promptly.
I have been buying and servicing my Chevys at Sierra Chevrolet for over 25 years and 3 cars. Their service advisor Joe Jimenez keeps me coming back. He is the best as he listens to my concerns and together we decide what needs to be done to my cars. We no longer live in the area but I travel from San Bernardino Hills to continue my service at Sierra with Joe. They are like family now after all these years! Thank you Joe for all your help!
The service advisor and the technician supervisor has great concerns about fixing the issue with my car
The experience it was great Abraham Tovar he was very knowledgeable and helpful I have a wonderful experience whit the dealership
Joe was a big help and his service was excellent The wait was a bit long but I was pleased with the results
Excellent service all around. Abe helped out promptly in a situation which was not common and was able to get to the bottom of it. Finally a dealership that does not feel like a factory. Good experience also with sales: they were honest. And while I ended up not upgrading my car this time, it’s clear where I’ll buy my next one.
Danny from service department was awesome. He definitely will continue to be a reason I take my traverse to sierra Chevrolet for all my service needs.
Marvin is super friendly and communicates well about the services needed, and service is fast!
I’ve never had a bad experience at sierra Chevy. Staff is always great and professional and vehicle is always ready when promised. Communication is out of this world!
The service I received was good. The staff that assisted me were informative and polite. Went in for an oil change and they made sure I got the best service possible.
My experience was great. Friendly staff and I didn't have to wait a long time for service to be done.
Excellent service Abe tovar was very polite and informative took care of me with professionalism
Marvin was very kind and showed patience as I tried to explain the noises my car made. He pointed out specials for the car service I required, and made sure my coupons helped me save money.
Everyone i dealt with was friendly and honest. They gave me a fair price and no pressure. Financing was quick and easy, and the whole process was transparent. I would definitely go back to Sierra Chevrolet!
Everything went well. My truck was completed and I was called to pick it up. Service advisors were courteous and friendly.
Danny was very helpful and working with mechanic to sort out the rarely discuss bulletin 25-NA-069 for my Equinox EV. The dealership offer a ride back home while my car is in garage. Thanks
Fue muy buen servicio y buena atencion por parte del staff fueron muy amables y no espere mucho por mi servicio.
Nice and clean, better since renovated but still small and tight. Staff receptive when I arrived.
Clean, friendly and timely. Great experience. I will definitely be back for our next service.
The service manager, Daniel, made my experience great as soon as I arrived. He addressed my concerns and was understanding of my situation. People like Daniel make me wanna come back to a business that has that kind of service. I am very selective on who I do business with and Daniel is now one of them.
This was a fleet vehicle purchased by my company. I dealt with tammy. She was great at keeping me informed.
Daniel was very attentive and very helpful in our situation. He checked for us with the warranty and was very honest with us.
Over the last two years, I have noticed a significant positive change in the quality of operations, level of communication, and experience amongst the Sierra staff in service. Strong work!
Parking is a minor challenge. Other than that, the car was fixed right, and Abe, my service advisor was knowledgeable, efficient, and treated me like a friend.
Excellent work and service. Thank you. I’m a loyal customer of Sierra Chevrolet of Monrovia. GOD bless and loves us all.
My experience at Sierra Chevrolet was excellent! They were professional, efficient, and didn’t try to force a sale onto me. All members that helped me went above and beyond to provide great customer service.
Not professional at all Had my car there all day and was actually ready by noon! Then ordered a part waiting for them to call never did! I had to track it down myself
Elliot was very helpful and low pressure which allowed us the opportunity to explore various options. When it came to choosing our car he did his very best to get bus the best price.
Service is great! Knowledgeable and friendly- always clear and upfront about the process and great staff going above and beyond
Good service in a timely manner, everything explain in a concise manner. Honors service coupons
People at the dealership are very helpful and I appreciate it and thank you very much
This is the dealer I bought my Blazer from. Also my previous Trailblazer. I've never been disappointed with the service work done here. Joe J. came up to me while I was waiting and pointed out that he thought there was evidence of rodent activity. While possible, I was in northern Arizona for about 6 weeks and it was actually the feral cats who had taken up residence on cold nights. Other than that, I always seem to get out of the waiting room and on my way in less time than is usually predicted. Miracle workers!
Thank you Daniel Rodriguez for all your help. You are the nicest person working here, you made sure all of our concerns were handled and put our mind at ease knowing you were there to make sure everything was taken care of. Thank you so much for being the best at customer service I've ever experienced.
Went to the dealership. Did all paperwork. Put a deposit down. Came to pick up my car the next day. Was told that I wouldn’t be getting the car. Took them 3 days to give my deposit back because even though I gave them cash they had to give me a check back.
The service technician Abe is absolutely amazing. I completely trust him with my Suburban. Best in the business!
Absolutely amazing service from Tanya! She was professional, friendly, honest, and kept me updated throughout the entire process. She made everything smooth and stress-free, and truly went above and beyond to make sure I was taken care of. One of the best experiences I’ve had at a Chevy dealership. Thank you, Tanya, for the outstanding customer service — highly recommend
Experienced, qualified and easy-to-deal personnel. Managers are able to find any suitable solution for particular client.
I had a great experience buying my truck from start to finish. The whole process was fast and incredibly easy—exactly what I was hoping for. From the moment I walked in, I was treated with respect and kindness, and the staff made me feel comfortable without any pressure to make a decision.
What really stood out was how efficient everything was. They valued my time, kept things moving smoothly, and didn’t waste a minute with unnecessary back-and-forth. I was able to find the right truck, get all my questions answered, and complete the purchase without any stress.
Overall, ... Read More DealerRater - May 3, 2026
On 4/18/26, I took my 2023 Chevy Bolt EUV in for general maintenance and upkeep, and was met with Daniel Rodriguez. To say that he provided great customer service is an understatement. While I was waiting for the 2.5 - 3-ish hours that my car was serviced, I was given two status updates about my car which helped confirm and gave me confidence that vehicle was actively being worked on. In addition, I was treated with nothing but the best of respect, cordiality, and friendliness by Daniel. He answered all of my questions to the best of his knowledge and ability and fostered ... Read More Google - May 2, 2026
Car was fixed but my front license plate bracket was cracked when I went to wash my car I noticed the cracked wasn’t there when I took my car in for service
Tanya is always great. She has always gone out of her way to help me have the best service experience possible.
Daniel was really helpful when I got there and explain the services for for the Silverado and the wait time
Everyone was very friendly and helpful in helping us find our new vehicle and worked with us to get it as close to our budget as possible.
Tanya was great. She was responsive, professional, and very helpful. I will bring my truck back for service because of her service.
Never thought buying a new car was so smooth with the help from Edwin and Jon , can’t forget about mark in finance either! Very satisfied with the help and flexibility these guys do for you !
I waited during service longer than I thought it should take from my appointment time.
Mike has easy to communicate with and Andrew was quick and helpful on the delivery day. Definitely would recommend