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GMC DenaliModel year report

1999 GMC Denali Problems

Complaints
14filed with NHTSA
Median mileage
82,500miles, 10 complaints with mileage
Recalls
1campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

Sources: NHTSA records for the 1999 GMC Denali (complaints, recalls, investigations). Report an error

NHTSA recorded 14 consumer complaints for the 1999 GMC Denali. The part named most often is brakes, with 5 complaints (36% of the total), followed by electrical system (4) and engine cooling (1). 10 of the complaints include a mileage, and 0% of those were filed for vehicles with under 50,000 miles; the median is 82,500 miles. Of all complaints, 1 a fire, according to the filers. NHTSA lists 1 recall campaign and 9 technical service bulletins for this model year.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Brakes: “While returning home from work today I approached a traffic light, pressed on the brake pedal and my foot went straight to the floor. I had to turn into the grass median to avoid hitting the cars in front as I pressed the emergency manual brake. Because I was very close to home at that point I was able to continue driving while using the emergency brake to stop. I checked the brake fluid level and it was within normal range.”

NHTSA complaint #10282698, filed 2009-09, 106,309 miles

Electrical system: “I purchased a 1999 yukon Denali from my former brother n law; he didn't inform me that my windows, door locks, radio,and windshield wipers would stop working. I was told that I needed a body control module; one Gmc mechanic asked me what does this part do. I'm a lady how would I know these things. I still don't have my vehicle repaired. Will this cause me other problems or can I continue to drive off a wing and a prayer?”

NHTSA complaint #10358855, filed 2010-10, 119,900 miles

Mileage when problems were reported

0% of the 10 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 63,000 and 106,309 miles.

0%0–100%10–250%25–5040%50–7530%75–10030%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (10 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 82,500 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

19992001200332004320052006200720092010
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Recalls and investigations

Recall details for the 1999 GMC Denali → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 9 on record; the latest 9 are shown.

Other model years of the GMC Denali

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20151856,0000———Falling
2014567,0000———Not enough data
2013524,4000———Not enough data
2012682,0000———Not enough data
201111114,2390———Not enough data
2010591,3250———Not enough data
20033250,0000——Not compared (before 2008)Stable
20022336,0001———Stable
20012264,3001———Stable
20002187,7021———Stable
19991482,5001———Not enough data

All GMC Denali model years

Frequently asked questions

How many NHTSA complaints does the 1999 GMC Denali have?

NHTSA recorded 14 consumer complaints for the 1999 GMC Denali as of Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 1999 GMC Denali is reported most often?

Brakes is named most often, in 5 complaints (36% of the total), followed by electrical system with 4.

Has the 1999 GMC Denali been recalled?

NHTSA lists 1 recall campaign for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

At what mileage are problems with the 1999 GMC Denali reported?

Among the 10 complaints that include a mileage, the median is 82,500 miles and the middle half falls between 63,000 and 106,309 miles; 0% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.