There are 5 owner-reported lighting complaints for the 2003 Isuzu Ascender in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
WHILE DRIVING AT NIGHT THE DIM HEAD LIGHTS GO OFF FOR NO REASON,THIS HAPPENS EVERY TWO DAYS OR SO , SO I HAVE TO DRIVE WITH BRIGHT LIGHTS (WHICH BLINDS ON COMING TRAFFIC) ON FOR ABOUT SIX OR SEVEN MILES BEFORE THE LOW BEAMS START WORKING AGAIN. DEALERSHIP CAN'T SEEM TO DUPLICATE PROBLEM, SO NOTHING HAS BEEN DONE YET. *TR
AT NIGHT WHILE DRIVING THE LOW BEAMS HEADLIGHTS TURN OFF AND AFTER A FEW MINUTES TURN BACK ON. THE HIGH BEAMS WORK WHEN THE LIGHTS GO OUT AND WE HAVE TO TURN THEM ON TO HAVE HEADLAMPS. THE DAYTIME RUNNING LIGHTS DON'T SEEM TO BE AFFECTED BY THE PROBLEM DURING THE DAY. PROBLEM HAPPENS ONLY AT NIGHT. *TR
TL*THE CONTACT OWNS A 2003 ISUZU ASCENDER. THE CONTACT STATED THAT THE PASSENGER SIDE TAIL LIGHT WORKED INTERMITTENTLY. THE MANUFACTURER STATED THAT HIS VIN WAS NOT INCLUDED IN NHTSA RECALL # 05V198000 (EXTERIOR LIGHTING:TURN SIGNAL). THE CURRENT MILEAGE WAS 59,000 AND FAILURE MILEAGE WAS 49,000.
THE VEHICLE'S HEADLIGHTS BLINK. *NM THE DEALER REFUSED TO REPAIR THE HEADLIGHT PROBLEM. THE PROBLEM HAD BEEN PRESENT SINCE PURCHASE. THE BLINKING PROBLEM WOULD OCCUR IN THE MORNING AND AFTER SITTING FOR A FEW HOURS, WHILE THE VEHICLE WAS IN MOTION, THE LIGHTS WOULD DIM DOWN WHEN THE CONSUMER'S FOOT WAS OFF OF THE PEDAL AND THE HEADLIGHTS WOULD GO OUT COMPLETELY AND THEN BACK ON AGAIN. *SC *JB
WHEN THE HIGH BEAMS WERE NOT ON, THE CONSUMER WAS ONLY ABLE TO SEE TWO CAR LENGTHS AHEAD. *JB *TS. THE CONSUMER WAS TOLD THE HEADLAMPS WERE PRE-SET AND COULD NOT BE READJUSTED. *JB
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Sep 8, 2026