1999 GMC Sonoma Transmission and drivetrain Problems
- Complaints
- 8about this part
- Share
- 14%of 57 total for the year
- Median mileage
- 47,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the transmission and drivetrain of the 1999 GMC Sonoma, 14% of the 57 complaints for this model year. Where a mileage was given, the median is 47,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Diferential has a zuming vibrating and cliking noise when driving both ajustable seat handels broke and 3rd small door handel has never work properly and keeps breaking.”
NHTSA complaint #10054519, filed 2004-01, 51,000 miles“Dealer where vehicle was towed for repairs says the automatic transmission must be pulled and disassembled to determine what is broken and the factory will not provide warranty relief since the truck is over 4 years old even though the vehicle has only 36,489 miles. Original warranty was 3 years or 36,000 miles which ever comes first. Vehicle has been serviced by dealer since purchase. The truck gave a high screeching noise and loss of power in the transmission, forward drive gear. I pulled off the fairfax county parkway in herndon and pulled into a parking lot. …”
NHTSA complaint #10016971, filed 2003-05, 36,489 miles“1999 Gmc Sonoma experienced problems with transmission, cd player, tires and heating coil. Consumer concerned that dealer did not tell them that there was a recall on this vehicle. The transmission was replaced, exchanged rebuilt torque converter with trances filler 12 month or 12,000 mile warranty.”
NHTSA complaint #10118892, filed 2005-04“While parked in reverse position with the clutch assembly, the vehicle rolled back unexpectedly which may have caused injuries. Manufacturer said that it stated I the owner's manual to use the emergancy parking braking only when in parked/ reverse positions, but never stated the consenquences of rolling back. Also, vehicle may roll while parked in any gears. Please provide further information and VIN#.”
NHTSA complaint #843297, filed 1999-07“When vehicle is in or out of gear engine idles, RPM will flucuate between 1600-3000 intermittently.dealer ehas replaced idle motor, throttle positioner, new computer , and new software for computer.after several attempts to correct defect, dealer is claiming it is normal.”
NHTSA complaint #853284, filed 1999-11Related service bulletins
- 10143757Jul 9, 2018This Preliminary information communicates to the dealer technician thatLight Duty Trucks equipped with automatic transmissions and 4 wheel drive may exhibit a condition of…
- 10096073Feb 17, 2016This preliminary information communication provides information to the technician about vehicle that after a transmission or torque converter replacement the vehicle may have a…
- 10115081Nov 2, 2015This Preliminary Information communication provides information to the technician about cooler line fittings that come with the 4T65E General Motors remanufactured transmission…
- 10114916Oct 21, 2015This Preliminary Information communication provides information to the technician about vehicle that after a transmission or torque converter replacement the vehicle may have a…
- 10112600Nov 26, 2012This Preliminary Information communication provides information to the technician with the axel setup information from American Axle Manufacturing. Technician should be advised…
- 10043185Nov 1, 2011Cadillac/chevrolet/gmc/hummer: some suvs and trucks are exhibiting a condition where by grinding/ratcheting type noise coming from automatic transmission when shifting into park…
- 10017190Oct 27, 20054l60e, 4l65e replacement valve body gaskets does not seem to fit.
- 10013572Apr 21, 20054wd models with noise, vibration on dry pavement.
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2003 | 5 | 13% |
| 2002 | 4 | 7% |
| 2001 | 10 | 11% |
| 2000 | 8 | 6% |
| 1999 | 8 | 14% |
| 1998 | 11 | 7% |
| 1997 | 9 | 8% |
| 1996 | 16 | 11% |
| 1995 | 7 | 3% |
| 1994 | 10 | 4% |
| 1993 | 7 | 12% |
| 1992 | 3 | 12% |
| 1991 | 2 | 7% |
Other parts of the 1999 GMC Sonoma
9 complaintsSeats
8 complaintsBody and structure
8 complaintsAir bags
6 complaintsElectrical system
4 complaintsEngine cooling
4 complaintsFuel system
3 complaintsOther or unknown
3 complaintsSeat belts
3 complaintsSteering
3 complaintsVehicle speed control
3 complaintsExterior lighting
2 complaints
← All problems reported for the 1999 GMC Sonoma
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology