In short, the Altima’s dashboard uses a standard set of warning, status, and information icons to signal engine health, safety systems, and vehicle status. Red lights demand immediate action, amber lights require prompt attention, and blue/green indicators show normal status or guidance. This guide covers the most common icons you’ll encounter and what they mean.
Common warning and alert indicators
These red and amber icons alert you to issues that may affect safety or the health of the vehicle. If one of these lights comes on, plan to stop safely and address the condition or have the car inspected.
- Check Engine / Malfunction Indicator Lamp (MIL) — a stylized engine icon. Signals a powertrain or emissions issue; have the vehicle scanned with an OBD-II reader or at a shop.
- Oil Pressure Warning — an oil can symbol. Indicates low oil pressure; continuing to drive could cause serious damage. Stop and check oil level and condition, then seek service if needed.
- Battery / Charging System Warning — a battery symbol. Suggests a charging problem (e.g., alternator or wiring); have the charging system tested promptly.
- Brake System Warning / Parking Brake — red circle with exclamation or a “BRAKE” indicator. Parking brake might be on, or there could be a hydraulic brake issue; if it lights while driving, pull over safely and check the brake system.
- ABS (Anti-lock Braking System) Warning — “ABS” in a circle. Absence of ABS function or a system fault; you can still drive, but braking performance may be affected—diagnose soon.
- Traction Control / ESC Indicator — car with wavy lines. Signals that traction control/ESC is active or has a fault; if it stays illuminated, have the system inspected.
- Engine Coolant Temperature Warning — thermometer icon in liquid. Engine overheating; pull over safely and investigate cooling system or coolant level.
- Tire Pressure Monitoring System (TPMS) Warning — tire icon with an exclamation or “TPMS.” Indicates one or more tires are underinflated; check tire pressures and inflate to the recommended level.
- Low Fuel Warning — a gas pump icon. Fuel level is running low; refuel soon to avoid running out.
- Airbag / SRS Warning — figure with an airbag. Indicates a fault in the airbag or supplemental restraint system; service needed to ensure occupant protection.
- Maintenance Minder / Service Due — a wrench icon. Indicates scheduled maintenance is due based on mileage/time; arrange service with a Nissan dealer or qualified shop.
- Immobilizer / Security Indicator — a key icon. Issues with the ignition immobilizer or key system; may require dealer attention or key reprogramming.
Note: Icon shapes and colors can vary slightly by model year and trim level. If any warning light remains on after addressing the initial issue, consult the owner’s manual or a Nissan service professional for a precise diagnosis.
Informational indicators and status icons
These icons provide ongoing status information or system readiness. They are not urgent warnings but tell you what the car is doing or what systems are active.
- Turn Signal Indicators — green arrows that flash to show the left or right turn signal is active.
- High Beam Indicator — blue headlight symbol with lines; indicates high beams are on.
- Cruise Control / Adaptive Cruise Control (ACC) Status — icons that show when cruise control or ACC is engaged and following distance is set.
- ProPILOT Assist / Driver Assist Indicators — various icons (often a steering wheel with lines) indicating ProPILOT Assist or other Nissan safety aids are active.
- Parking Sensors Indicator — a “P” with waves or a sensor symbol; indicates parking sensors are active or detecting objects.
- Defrost/Defog Indicators — icons for rear window defroster or front defroster showing climate control status.
- Seat Belt Reminder (Information) — reminder icon prompting the use of seat belts; typically red when unbuckled for occupants.
- Fuel Gauge / Range Indicator — digital or analog gauge showing approximate fuel level and estimated driving range.
As with warning lights, the exact icons and their appearance can vary by model year and trim. If you’re unsure about an icon, refer to the owner’s manual or the Nissan support site for your specific Altima.
Model-year and trim variations
Icon design and availability can change across generations and trims. Newer Altima models may add or modify indicators related to ProPILOT Assist, Intelligent Trace Control, or other driver-assistance features. Always check the exact dashboard symbol guide in your model year’s manual or official Nissan resources for the most precise descriptions.
How to respond when you see dashboard symbols
Action guidelines help you stay safe and protect the vehicle. Red lights demand immediate action; amber lights require attention; blue/green indicators generally reflect status or information.
- Red indicator lights: Safely pull over as soon as traffic allows and address the issue. If necessary, call for assistance and avoid driving further until problems are resolved.
- Amber indicator lights: Proceed with caution. Check levels (oil, coolant, fuel) or have the system inspected soon to prevent potential damage.
- Blue/green indicators: These are informational. They typically confirm that a system (like headlights or cruise control) is active or ready.
If a light remains on after performing basic checks, or if you notice unusual vehicle behavior (loss of power, abnormal noises, warning sounds), consult a Nissan dealer or qualified mechanic promptly.
Summary
The Nissan Altima dashboard uses a layered system of symbols to communicate health, safety, and status. Red lights signal urgent issues; amber lights call for prompt attention; blue/green lights indicate status or information. While most icons cover common items like the Check Engine light, oil and battery warnings, TPMS, brake and airbag alerts, and safety-system indicators (ABS, ESC, ProPILOT, ACC), exact designs can vary by year and trim. Regularly reviewing your owner’s manual and using the maintenance minder can help you stay ahead of potential problems and keep the Altima running smoothly.