Total Complaints
3 filings
GMC C PICKUP · model year
3 NHTSA complaints. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1999GMCC PICKUP carries 3 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
The most frequently selected component label in reports for the 1999 C PICKUP is service brakes, hydraulic:antilock/traction control/electronic limited slip with 3 filings. Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause.
NHTSA currently has 2 investigation files overlapping the 1999 C PICKUP. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
Total Complaints
3 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP | 3 |
ON A 1999 GMC SIERRA PICKUP THE ABS MODULE FAILED AT 26,000 MILES. IN RESEARCHING THIS PROBLEM IT APPEARS THEY FAIL ON MOST SIERRA AS WELL AS CHEVROLET PICKUPS. THE REPAIR COST QUOTED ME RANGES BETWEEN $975 AND $1000. ONE SERVICE MANAGER CANDIDLY TOLD ME IT IS A SERIOUS PROBLEM THAT GM SHOULD HAVE RECALLED. *JB
Mileage: 26,000
FOR THE LAST TWO YEARS I HAVE HAD TO UNPLUG MY ABS BRAKES SYSTEM ,BECAUSE IT WOULD CONTINUOUSLY RUN. IF I DID NOT UNPLUG MY BATTERY WOULD DIE. THIS PAST CHRISTMAS 2004, I LOST MY BACK END COMING DOWN HILL AND LUCKILY RECOVERED. I HAVE CONTACTED GMC AND ARE STILL WAITING FOR AN ANSWER. MY QUESTION IS "IF YOUR DR PUT YOUR PACE MAKER ON THE OUTSIDE OF YOUR BODY AND IT FAILED DUE TO CORROSIVE EXPOSURE WOULD YOU HAVE A CASE. THE ABS MODULE SITS EXPOSED TO CORROSIVE ELEMENTS IN THE SALT BELT UNDER THE DRIVERS SEATOUTSIDE OF THE VEHICLE. I HAVE JUST HAD THIS PROBLEM DIAGNOSED , AND THE DEALER STATES THE MODULE AND CONNECTOR IS SO CORRODED FURTHUR DIAGNOSTICS CANNOT BE PERFORMED. THIS MANUFACTURED DEFECT SHOULD NOT BE A PROBLEM PASSED ON TO CONSUMERS; UNLESS GMC STATES"IF YOU LIVE IN THE SALT BELT DO NOT PURCHASE THIS VEHICLE". FROM 99 TILL NOW THIS SHOULD NOT AND WOULD NOT HAPPEN IF THEY JUST PUT THE MODULE UNDER THE DRIVER SEAT INSIDE THE VEHICLE. THIS PROBLEM WILL COST 1088.64 TO FIX. I WAN
Mileage: 70,000
I WOULD LIKE TO ADD MY NAME TO THE LIST OF COMPLAINTANTS IN REGARDS TO THE ANTI-LOCK BREAK PROBLEMS WITH GMC TRUCKS. THE ANTI-LOCK BREAKS ON MY 1999 GMC SIERRA WOULD INTERMITTENTLY ENGAGE FOR NO APPARENT REASON. THE DEALER SAID IT WAS DUE TO A BUILD UP OF CORROSION & CHARGED $245.00 FOR THE REPAIR. WHILE I FORTUNATELY DID HAVE ANY ACCIDENTS, I DID HAVE SEVERAL NEAR MISSES. WHETHER THIS WAS A DESIGN FLAW OR AN INTENTIONAL ATTEMPT BY GM TO GENERATE INCOME FOR THEIR DEALERS, I DON'T FEEL I SHOULD HAVE TO INCUR THE EXPENSE.
Mileage: 50,900
Data vintage: August 2026. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 1999 GMC C PICKUP; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.