There are 4 owner-reported engine complaints for the 2001 Chevrolet Trailblazerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
CONSUMER STATED THAT WHILE DRIVING AND WITHOUT WARNING OIL IS LEAKING FROM THE VEHICLE AND CAUSING THE CONSUMER TO REFILL MORE THEN OFTEN. CAUSE UNKNOWN. DEALER NOTIFIED. TS
WHILE DRIVING VEHICLE WILL STALL/ LOSES ALL POWER. DEALER CONTACTED. *AK
WHILE DRIVING VEHICLE WILL STALL OUT WITHOUT ANY WARNING.*AK
2001 TRAILBLAZER CUTS OFF WHEN DRIVING. AFTER HAVING IT SERVICED FOUND THAT MASS AIR FLOW SENSOR NEEDS TO BE REPLACED FUSE AND HOSE ASSEMBLY. *TS *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 Apr 26, 2026