Check Engine Light Flashing

The check engine light flashing on a 2021 Nissan Maxima usually signals a serious misfire or condition that can damage the catalytic converter. A flashing light should prompt immediate attention to prevent costly downstream repairs and ensure safety. At Larry H. Miller Nissan Mesa in Mesa, AZ, our factory-trained technicians are equipped to perform prompt, accurate diagnoses using OEM diagnostic tools. We inspect ignition components, fuel delivery, and emissions systems to identify the root cause. Acting fast preserves engine health and fuel efficiency — and often saves money by avoiding secondary failures. When you bring your Maxima to us, you get transparent estimates, OEM parts, and repairs performed to Nissan standards. We also provide service financing so you can get the work done now and pay over time. To minimize vehicle downtime, schedule service online and review any available service specials before you arrive. Our team will explain required repairs, warranty coverage, and long-term value so you leave confident and back on the road quickly.

2021 Nissan Maxima Check Engine Light Reset

Resetting the check engine light on a 2021 Nissan Maxima may clear the display, but that does not resolve underlying faults. Our dealership recommends a full diagnostic at Larry H. Miller Nissan Mesa so that resets are followed by proper repairs when needed. We use OEM scanners to read and clear diagnostic trouble codes while documenting root causes and recommended actions—this improves transparency and prevents recurring problems. Dealership service means your Maxima is handled by Nissan-certified technicians who install genuine parts, maintain warranty integrity, and log service history in manufacturer records. Choosing us often delivers better immediate and long-term savings versus repeat attempts at DIY resets or non-certified shops, because correct repairs restore performance and prevent future failures. We also offer service financing and frequent service specials to make necessary repairs more affordable. To book, schedule service online or contact our service team at Larry H. Miller Nissan Mesa for a clear plan and timeline.

2021 Nissan Maxima Check Engine Light Codes

Common check engine light codes for a 2021 Nissan Maxima include P0300 (random/multiple cylinder misfire), P0420 (catalyst system efficiency low), P0171/P0174 (system too lean), and oxygen sensor codes that affect emissions and performance. Ignoring these codes can result in reduced fuel economy, accelerated component wear, failed emissions tests, and costly repairs. At Larry H. Miller Nissan Mesa in Mesa, AZ, we explain each code, the likely causes, and the cost implications of delayed repair. For example, a misfire left unaddressed can ruin a catalytic converter; a simple ignition coil replacement today avoids a converter replacement later, saving substantial expense. Our service advisors provide transparent estimates, list OEM parts, and highlight available service specials and financing options to ease the decision. We pride ourselves on quick, accurate diagnostics and a comfortable customer experience—use our online tools to schedule appointment and keep your 2021 Nissan Maxima running reliably with factory-level care.