Jaguar Dashboard Warning Lights: Every Symbol Explained
Jaguar uses a color-coded warning system across all modern models — F-Pace, XE, XF, XJ, F-Type, E-Pace, and I-Pace. Red means stop or act immediately. Amber means schedule service or investigation. Green and blue confirm active systems. A warning light that appears briefly at startup and then goes out is a self-check — normal behavior. A light that stays on or comes on while driving requires attention.
Red Warning Lights — Act Immediately
Engine Coolant Temperature — A thermometer submerged in wavy liquid, red. The engine is overheating or coolant level is critically low. Pull over, switch off the engine, and allow it to cool before opening the bonnet. Do not remove the coolant cap while hot.
Low Oil Pressure — A small oil can with a drop falling from the spout, red. The engine is not receiving adequate lubrication. Stop the vehicle immediately and switch off the engine. Check oil level before restarting. Continuing to drive with this light active risks engine seizure.
Battery / Charging System — A rectangle with a plus sign on one end and minus on the other — the standard battery outline, red. The alternator is not charging or there is an electrical system fault. Drive directly to a service point — electrical systems will begin failing as battery reserve depletes.
Brake System — A circle with an exclamation mark inside, sometimes with the word BRAKE, red. Appears when the parking brake is engaged, brake fluid is critically low, or a hydraulic fault exists. If the handbrake is released and the light remains, do not continue driving.
Airbag / SRS — A seated figure with a large circle deployed in front of them, red. A fault exists in the supplemental restraint system. Airbags may not deploy in a collision, or may deploy unexpectedly. Requires immediate diagnosis.
Power Steering — A steering wheel with an exclamation mark beside it, red. Electric power-assisted steering has a serious fault. Steering remains functional but requires significantly more physical effort. Try switching the vehicle fully off and restarting — if the light returns, seek service.
Transmission Oil Temperature — A thermometer inside a wavy circle resembling flower petals, red. Transmission fluid has overheated. Pull over and allow the transmission to cool before continuing. Common during extended towing or hill climbing in hot conditions.
Door / Bonnet Ajar — An overhead view of the vehicle outline with one section shown open, red. A door, bonnet, or boot is not fully latched. Check all closures before driving.
Amber and Yellow Warning Lights — Schedule Service
Check Engine (MIL) — An engine block outline, amber. The engine management system has logged a fault covering emissions, fuel, ignition, or sensors. A steady light allows continued driving — schedule a diagnostic scan. A flashing check engine light indicates an active misfire damaging the catalytic converter. Reduce speed and load immediately and seek service the same day.
ABS — The letters ABS inside a circle with a ring around it, amber. The antilock brake system has a fault and is disabled. Standard braking still functions but wheels may lock under hard braking. Avoid emergency stops until repaired.
Electronic Stability Control / DSC — A car seen from above with two wavy lines beneath the rear wheels, amber. Dynamic Stability Control is disabled, either manually or due to a fault. In wet or slippery conditions the vehicle has reduced ability to correct slides.
Tire Pressure (TPMS) — A cross-section of a tire — like a horseshoe shape — with an exclamation mark inside, amber. One or more tires are significantly underinflated. Check all four tires and inflate to the pressure shown on the driver’s door jamb sticker. If pressure is correct and the light remains, a TPMS sensor may need recalibration or replacement.
Service Due / Wrench — A spanner or wrench icon, amber, sometimes with a lightning bolt through it on hybrid models. Scheduled maintenance is due. On hybrid variants, the lightning bolt through a spanner specifically indicates the hybrid system needs servicing.
Low Fuel — A fuel pump outline with an arrow pointing down, amber. Fuel level is approaching empty. The distance-to-empty display in the cluster gives a more precise figure.
Gearbox / Transmission Fault — The letters TRANS or a gear outline with an exclamation mark, amber. The transmission control system has logged a fault. Shift quality may be affected. Requires a diagnostic scan to identify the specific code.
Lane Departure Warning — Two parallel lane lines with a car drifting toward one of them, amber. The vehicle has crossed a lane marking without a turn signal active. When white, the system is monitoring and ready. When amber, an intervention has occurred or the system has a fault.
Traction Control Active — Same car-with-wavy-lines icon as DSC but flashing rather than steady. The traction control system is actively intervening to prevent wheelspin. This is normal behavior on slippery surfaces — a steady amber version indicates the system is off or has a fault.
Blue and Green Indicators — System Status
High Beam — A headlight shape with horizontal lines projecting forward, blue. High beams are active.
Turn Signal — A green arrow pointing left or right, blinking with the indicator. A faster-than-normal blink rate means a bulb has failed on that side.
Adaptive Cruise / ACC — A speedometer face with lines or a car with lines in front, green. Adaptive cruise control is set and tracking the vehicle ahead.
Lane Keep Assist Active — Two lane lines with a small car centered between them, green. The system is monitoring lane position and is ready to intervene on drift.
Rear Fog Lamp — An amber or yellow lamp shape with wavy lines projecting rearward. The rear fog lamp is active. Easy to leave on accidentally after fog conditions — disengaging it reduces glare for drivers behind you.
When a Light Appears and Then Disappears
A warning light that comes on during driving and then clears on its own has still stored a fault code in the ECM or the relevant control module. Even without a return, a diagnostic scan will retrieve the stored code. On Jaguar vehicles, retrieving these codes requires either Jaguar’s SDD software or a capable aftermarket scanner — standard generic OBD2 scanners read P-codes but miss body, chassis, and communication faults stored in other modules. Intermittent faults are frequently early signs of a component beginning to fail, and diagnosing them early costs significantly less than waiting for a full failure.
