Check Engine Light
Chevrolet Check Engine Light Diagnosis in San Bernardino
Get the cause of an illuminated check engine light professionally diagnosed by the service team at Diamond Chevrolet. If your vehicle is also due for routine maintenance, explore our Chevrolet oil change service or battery service.
Service Hours: Monday–Friday 7:00 AM–6:00 PM | Saturday 8:00 AM–1:00 PM

What a Check Engine Light Can Mean
A check engine light can be triggered by many different conditions. The light itself does not identify the exact problem, so proper diagnosis is the first step. Related concerns can sometimes overlap with battery service or other vehicle systems that require professional inspection.
Check engine light stays illuminated
Have the vehicle inspected if this condition is present or changing.
Light flashes or changes behavior
Have the vehicle inspected if this condition is present or changing.
Engine performance changes
Have the vehicle inspected if this condition is present or changing.
Fuel economy or drivability changes
Have the vehicle inspected if this condition is present or changing.

From Warning Light to Clear Next Step
Technicians use diagnostic equipment and vehicle information to identify fault codes and evaluate the systems associated with the concern. The goal is to determine the cause before recommending repairs. Once the concern is identified, related maintenance such as air filter service or tire service can be addressed when appropriate.
Don’t Guess at a Check Engine Light
A continuously illuminated light should be evaluated, while a flashing check engine light can indicate a more urgent condition. If your Chevrolet is running poorly or the light changes suddenly, schedule service promptly.
Related Chevrolet Services
A warning light can overlap with other maintenance or performance concerns. Explore additional Chevrolet service options available in San Bernardino.
Diamond Chevrolet of San Bernardino
Address: 909 W 21st St, San Bernardino, CA 92405
Service: 909-906-6152
Parts: 909-324-0310
When We’re Open
| Monday–Friday | 7:00 AM–6:00 PM |
| Saturday | 8:00 AM–1:00 PM |
| Sunday | Closed |
Chevrolet Service FAQs
Common signs and maintenance needs can indicate that your Chevrolet should be inspected. If you notice a change in performance or a service reminder, schedule an appointment so the condition can be evaluated.
Yes. Use the Schedule Service option to request an appointment with the Diamond Chevrolet service department.
Diamond Chevrolet offers GM Genuine Parts and ACDelco parts for applicable service and repair needs.
The service department is open Monday through Friday from 7:00 AM to 6:00 PM and Saturday from 8:00 AM to 2:00 PM. The service department is closed Sunday.
Diamond Chevrolet of San Bernardino is located at 909 W 21st St, San Bernardino, CA 92405.
Schedule Chevrolet Service
Let our San Bernardino Certified Service team diagnose the warning and help you understand what your Chevrolet needs next.