"How reliable is the 1999 Gmc Suburban?"

"Based on 393 NHTSA complaints, the 1999 Gmc Suburban has a median complaint mileage of 75000 miles. The most common issue is SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP."

1999 Gmc Suburban: Reliability Data

Q: "What are common problems with the 1999 Gmc Suburban?"

"The most frequently reported component in NHTSA complaints for the 1999 Gmc Suburban is SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP, accounting for a significant portion of the 393 total complaints filed."

Source: NHTSA — 393 complaints

393

Total Complaints

75,000mi

Median Mileage

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

50,000 25th Percentile

75,000 Median Mileage

97,785 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

TIRES

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC

POWER TRAIN:AUTOMATIC TRANSMISSION

TIRES:TREAD/BELT

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

ELECTRICAL SYSTEM:12V/24V/48V BATTERY

SUSPENSION

STEERING

SERVICE BRAKES, HYDRAULIC

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"IF DRIVING AT HWY SPEED AND BEGAN TO BRAKE, THE VEHICLE WILL PULL TO THE RIGHT. AFTER TAKING OFF FROM A STOP THE BRAKES ARE BINDING, AND THERE ARE ABNORMAL NOISES AND VIBRATION. *AK"

"ABS BRAKE FAILURE. ALSO, FRONT DISC BRAKES AND REAR BRAKE DRUMS FAILED.ALSO, VEHICLE PULLS TO LEFT AND THEN RIGHT."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP 91 complaints

25th: 65,250 mi Median: 86,646 mi 75th: 100,250 mi

TIRES 18 complaints

25th: 27,750 mi Median: 35,000 mi 75th: 66,500 mi

POWER TRAIN:AUTOMATIC TRANSMISSION 13 complaints

25th: 43,978 mi Median: 56,833 mi 75th: 63,025 mi

Where Are Complaints Coming From?

Top states by complaint count.

CA: 85 TX: 30 AZ: 25 MI: 24 NY: 21 VA: 15 FL: 15 OH: 13 NV: 13 NJ: 13

Who Files Complaints?

60.1%

Original Owners

39.9%

Second+ Owners

Gmc Suburban — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1990	28	-	PARKING BRAKE:CONVENTIONAL:MECHANICAL:LINKAGE AND CABLE	3
1991	33	-	SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP	2
1992	105	-	SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP	25
1993	254	-	SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP	38
1994	490	113,000	SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP	70
1995	294	125,000	SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP	24
1996	220	87,947	SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP	13
1997	268	90,723	SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP	22
1998	137	88,393	SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP	10
2000	20	23,000	SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP	1

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28