1999 Oldsmobile Alero Transmission and drivetrain Problems
- Complaints
- 34about this part
- Share
- 7%of 462 total for the year
- Median mileage
- 55,544miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 34 complaints about the transmission and drivetrain of the 1999 Oldsmobile Alero, 7% of the 462 complaints for this model year. Where a mileage was given, the median is 55,544 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Automatic transmission will not shift into 3rd or 4th gear, anymore. Roars loudly rather than shifts. When I take my foot off the accelerator at 30+ MPH car acts like cruise control is on - decelerates extremely slow. Rpms stay at 2200+ at 35 MPH. Also now a little higher on temperature gauge.”
NHTSA complaint #10010237, filed 2003-03, 65,950 miles“I have had an 99' Oldsmobile Alero for 7 years. It has had almost every problem listed on this website. It has had an over heating problem every year since I got it and I have spent thousands in repairs for the cooling system, fuel pump, poor interior manufacturer, AC/heater blower motor settings failure, fuel gauge failure, transmission leakage, poor springs/struts, gear slipping, hard starting, water leaking in from rain under glove compartment, off alignment (set three times in year), poor gas mileage, overheating or running above normal temperature and sudden overheating without notice…”
NHTSA complaint #10180772, filed 2007-01, 75,000 miles“1999 olds Alero gls, bought the car in may,2004 with 23,000 miles on it. From day 1 I have had nothing but problems with it mostly brakes, car has extended warranty on it. The rotors grind, pulsate, squeak, the calipers make cracking noises sometimes brake pedal goes to floor. The dealership refuses to fix the problem or says it will not do it for the mechanic, when I drop it off I allowed the service manager to hear it he also verified the sound, only to get the car back being told it won't do it. The rotors have been replaced 4x the brakes 3x the calipers 2x, I still have the problem. …”
NHTSA complaint #10150154, filed 2006-02, 26,000 miles“1999 Oldsmobile Alero (out of warranty) began to have problems with transmission slipping occasionally during the summer. I was told no problem could be found. While driving home last evening, the service engine soon light came on as well as the trac off light and it was very hard to get the car to go more than 30 MPH on a 50 MPH highway very nearly causing an accident. By the grace of god, that did not happen, but now I am told that the transmission may possibly be bad or it could be several other things. In either case, it would seem to me that someone should have found the error before. …”
NHTSA complaint #10098258, filed 2004-11, 63,360 miles“1. Persistant scraping noise from ft end since 10/21/01. Cavendar mechanics evaluted problem 4-6 separate times w/ different prognosis each time, later determined transmission problems on 3/18/02. Currently still having same scraping noise and fluid(redish) leakage from underneath vehicle 2. 3 window motors failed /repaired 3. Twice alternator failure/repaired w/2 seperate alts”
NHTSA complaint #10068827, filed 2004-01, 27,600 milesRelated service bulletins
- 10115081Nov 2, 2015This Preliminary Information communication provides information to the technician about cooler line fittings that come with the 4T65E General Motors remanufactured transmission…
- 10023942Oct 1, 2007Information on 4t40-e (mn4) and 4t45-e (mn5) front wheel drive automatic transmission valve body reconditioning, dtc p0741, p0742, p0751, p0752, p0756, p0757, p1811, harsh…
- 10017096Oct 24, 2005Vehicle will not move in either direction. Transmission may show over full. P90 4t40e 4t45e no movement drive or reverse. Converter may be empty of fluid.
- 10017086Oct 24, 20054t40e or 4t45e will not shift no diagnostic trouble codes.
Transmission and drivetrain: other model years
Other parts of the 1999 Oldsmobile Alero
121 complaintsElectrical system
89 complaintsEngine cooling
85 complaintsVisibility (wipers, defrost, mirrors)
56 complaintsSuspension
46 complaintsExterior lighting
43 complaintsFuel system
32 complaintsSteering
30 complaintsBody and structure
29 complaintsAir bags
14 complaintsVehicle speed control
14 complaintsSeat belts
11 complaints
← All problems reported for the 1999 Oldsmobile Alero
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