Total Complaints
3 filings
GMC C PICKUP · model year
1999 GMC C PICKUP
3 NHTSA complaints for this specific cohort.
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.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 1999 C PICKUP is service brakes, hydraulic:antilock/traction control/electronic limited slip with 3 filings. Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 2 investigation files overlapping the 1999 C PICKUP. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
3
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP | 3 |
Recent Complaints
20070802SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
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
20050921SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
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
20050503SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
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
Compare 1999GMCC PICKUP to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 1999 GMC C PICKUP have?▼
The 1999 GMC C PICKUP has 3 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1999 GMC C PICKUP?▼
The most-complained component for the 1999 GMC C PICKUP is SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP with 3 complaints. Other frequently reported areas include various components.
Is the 1999 GMC C PICKUP safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. 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.
Read our methodology — how this data is sourced, computed, and verified.