THERMOSTAT FAILED CAUSING VEHICLE TO OVERHEAT. MJS
1989 GMC S15
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
Counts are not adjusted for sales, age, mileage exposure or reporting. A lower count does not establish that a car is problem-free.
About this comparison →Model-year median: 2.5
1Recall campaignsView recall details →
1InvestigationsView investigation details →
Check a VIN with NHTSA ↗ Model-level counts do not show whether a particular VIN is affected or repaired.
Inspection summary
1989 GMC S15
NHTSA snapshot: September 18, 2026. 8 owner complaints · 1 recall campaigns · 1 investigations.
Counts are not failure probabilities and are not adjusted for sales, age, mileage exposure or reporting. One report may name several categories. Comparison method and limitations.
Top reported categories (up to 5)
- Electrical System: 2 reports
- Engine And Engine Cooling: 2 reports
- Equipment: 1 reports
- Exterior Lighting: 1 reports
- Seat Belts: 1 reports
Full reported-category list and vehicle report
Recall links
Check a VIN with NHTSA. Model-level history does not establish whether a particular VIN is affected or repaired.
Print the top reported categories, recall links, snapshot date and comparison limits.
How this year compares
Owner complaints by model year
Compare all S15 years →Counts vary with age, sales, mileage exposure and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 0 of 8 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Equipment. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Equipment complaints
1 reportsRecall campaigns
193V008000 · Engine And Engine Cooling:cooling System:fan
Jan 14, 1993
THE ENGINE COOLING FAN BLADES BREAK AS A RESULT OF FATIGUE AND/OR VEHICLE INDUCED STRESS.
Consequence & remedy
Consequence: IF THE BLADE BREAKAGE OCCURS WHILE THE HOOD IS OPEN, APERSON WORKING UNDER THE HOOD OR IN THE VICINITY OF THE VEHICLE COULD BE STRUCKAND INJURED BY THE BLADE SEGMENT.
Remedy: INSTALL A NEWLY DESIGNED FAN ASSEMBLY.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
Defect investigations
1EA94029 · Engine Compartment Fires
Opened Jul 29, 1994 · Closed Jul 31, 1996
Status: closed (inferred from source dates) · Engine And Engine Cooling
AN ALLEGED MALFUNCTION IN THE ATLERNATOR RESULTING IN ENGINE COMPARTMET FIRES.
An investigation is not a finding of a defect, and closure does not prove a vehicle is problem-free.
Illustration