GMC DENALI · model year

1999 GMC DENALI

14 NHTSA complaints for this specific cohort.

NHTSA overall rating

Not crash-tested

New Car Assessment Program

The 1999GMCDENALI carries 14 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 1 fire, 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 DENALI is electrical system:12v/24v/48v battery:cables with 2 filings, followed by service brakes, hydraulic:antilock/traction control/electronic limited slip (2) and service brakes, hydraulic:foundation components:disc (1). 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 DENALI. 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.

14
Complaints
0
Crashes
1
Fires
0
Injuries
0
Deaths

Total Complaints

14 filings

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

ComponentCount
ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES2
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP2
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC1
POWER TRAIN:AUTOMATIC TRANSMISSION1
ENGINE AND ENGINE COOLING:ENGINE1
VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR1
SUSPENSION1
STEERING:COLUMN1
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:SHOES/LININGS1
ELECTRICAL SYSTEM:WIRING1
SERVICE BRAKES, HYDRAULIC1
ELECTRICAL SYSTEM1

Recent Complaints

20101002ELECTRICAL 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? *TR

Mileage: 119,900

20090902SERVICE BRAKES, HYDRAULIC

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. *TR

Mileage: 106,309

20070103SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

ANTI-LOCK BRAKING SYSTEM ENGAGES WHEN COMING TO A STOP CAUSING VEHICLE TO TAKE LONGER THAN EXPECTED TO COME TO A STOP. I HAVE HAD SEVERAL NEAR ACCIDENTS INCLUDING ALMOST STRIKING A PEDESTRIAN. *JB

Mileage: 99,500

20061002SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

1999 GMC YUKON WAS TAKEN TO RUSS DARROW WAUKESHA, INC. CADILLAC/GMC FOR UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION. DEALER SUGGESTED THIS COULD CAUSE INCREASED STOPPING DISTANCES WHICH COULD LEAD TO A CRASH. DEALER INFORMED VEHICLE OWNER OF RECALL NHTSA CAMPAIGN 05V379000; WHEEL SPEED SENSOR CLEANING. THAT RECALL LISTED A 1999-2002 YUKON, DEALER WENT ON TO SAY THAT THIS SPECIFIC VEHICLE WAS NOT COVERD? VIN#[XXX]. OWNER PAID FOR THE WHEEL SPEED SENSOR CLEANER BASED ON THE DEALERS RECOMMENTATION THAT IT WAS A SAFETY ISSUE. *NM UPDATED 07/12/2012 *JS INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Mileage: 130,000

20060424FireELECTRICAL SYSTEM:WIRING

ON APRIL 4, 2006 AT APPROX. 5:00PM OUR 1999 DENALI GMC CAUGHT FIRE AND WAS DESTROYED. IT STARTED TO LOSE POWER AND THEN IMMEDIATELY BURST INTO FLAMES AND WAS A TOTAL LOSS. I FEEL THIS WAS A MANUFACTURE DEFECT OF SOME KIND AND WOULD LIKE TO HAVE THIS INVESTIGATED. I DO HAVE PICTURES TO PROVIDE YOU. *JB

Mileage: 63,000

20050907SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:SHOES/LININGS

DT: 1999 GMC DENALI. THE CONSUMER PUT NEW BRAKE SHOES/CALIPERS AND ROTORS ON THE VEHICLE. THE REAR BRAKE EQUIPMENT DID NOT NEED TO BE REPLACED DURING THE TIME THE FRONT BRAKE EQUIPMENT WAS REPLACED. THE REAR BRAKES SOON BECAME INOPERATIVE CAUSING THE FRONT TIRES TO WEAR OUT. THE CONSUMER FOUND THE RECALL 05V379000 FOR THE REAR BRAKES. WHEN HE CALLED THE DEALERSHIP THEY STATED THAT THIS VEHICLE WAS NOT INCLUDED IN THIS RECALL DUE TO THE VIN. THE REAR BRAKES HAVE NOT BEEN FIXED YET. *AK *MR

20041222STEERING:COLUMN

THE STEERING COLUMN SHIFTER BROKE WHILE PLACING IT INTO DRIVE. THE ENTIRE STEERING COLUMN HAD TO REPLACED. *JB

Mileage: 85,000

20040614SUSPENSION

WHILE TURNING TO THE RIGHT OR LEFT THE TIRES RUBBED THE INSIDE OF THE FRAME. DEALER ATTEMPTED TO REPAIR THE PART FOUR TIMES. HOWEVER, THE PROBLEM RECURRED. *AK

Mileage: 80,000

20040317ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

BATTERY CABLES LOOSENED FROM THE BATTERY POST. THIS CAUSED VEHICLE TO LOSE POWER . ALSO, BATTERY LEAKED ACID ONTO THE ENGINE.*AK PURCHASED NEW. AT 11K MILES THE BATTERY EXPLODED DUE TO A LOOSE POSITIVE TERMINAL NUT WITHIN THE BATTERY CASING. AT 31K MILES, THE VEHICLE STALLED ON THE ROADWAY DUE TO THE POSITIVE BATTERY CABLE DISCONNECTING FROM THE BATTERY HOUSING. THE POSITIVE TERMINAL NUT CAME LOOSE FROM THE BATTERY HOUSING. AT 44K MILES, THE POSITIVE BATTERY POST LOOSENED AGAIN AND LEAKED BATTERY ACID ON THE BRAKE LINES, THE BATTERY CABLES AND THE STEEL INNER WHEEL LINER. THE ACID ALSO DAMAGE THE OWNERS GARAGE FLOOR.

20030911VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR

WINDSHIELD WIPERS EXPERIENCED THE SAME DEFECT AS STATED IN RECALL 03V159000; BUT THIS VEHICLE WAS NOT INCLUDED DUE TO VIN. *AK

Mileage: 65,000

20030422ENGINE AND ENGINE COOLING:ENGINE

THE ENGINE FAILED AND LEAKED ANTI FREEZE WHILE DRIVING AT 55 MPH. THERE WERE 2 LARGE HOLES IN THE ENGINE. *JB

Mileage: 59,000

20030114ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

THE CONSUMER IS CONCERNED WHILE TRAVELING ON THE HIGHWAY WITHOUT PRIOR WARNING THE VEHICLE STALLED. HE WAS ABLE TO PULL OVER AND LIFT THE HOOD UP AND NOTICED THAT BATTERY ACID HAD EXPLODED FROM THE BATTERY. PLEASE FILL IN ADDITIONAL INFORMATION DEALER IS AWARE OF THE PROBLEM. TS

Mileage: 52,000

20011127POWER TRAIN:AUTOMATIC TRANSMISSION

WHILE DRIVING ABOUT 15 MPH HAD HEARD A LOUD NOISE FROM TRANSMISSION LIKE SOMEBODY HAD STRUCKED VEHICLE AND CONTINUED DRIVING, BUT WHEN GOT IN FRONT OF HOUSE ENGINE STOPPED WORKING, AND NOTICED THAT TRANSMISSION HAD BLOWNOUT. DEALER WOULD LIKE TO FIX VEHICLE, BUT CONSUMER WOULD LIKE TO HAVE MORE INFORMATION ABOUT IT. PLEASE CONSUMER PROVIDE MORE INFORMATION.*AK

19990811SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC

FRONT INSIDE BRAKE PADS WORE DOWN TO METAL IN 9100 MILES. RIGHT FRONT ROTOR WAS SCORED AND NEEDED TO BE TURNED DOWN. DEALER STATES CALIPERS ARE WORKING CORRECTLY. THEN WHY ONLY ARE THE INSIDE PADS WORN.

Compare 1999GMCDENALI to Similar Vehicles

NHTSA Investigations

Frequently Asked Questions

How many complaints does the 1999 GMC DENALI have?
The 1999 GMC DENALI has 14 NHTSA complaints, 0 crashes, 1 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1999 GMC DENALI?
The most-complained component for the 1999 GMC DENALI is ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES with 2 complaints. Other frequently reported areas include SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP and SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC.
Is the 1999 GMC DENALI 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.