Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
35,857 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2001 GMC Jimmy transmission problems

transmission problem

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2001 GMC Jimmy Owner Comments

problem #7

Jan 202006


  • 92,000 miles


When I got to work on Tuesday morning, went to park car in space, put in reverse, clunk, no reverse, can't get out of first gear. I had to have my car towed 30 miles each way to my mechanic. Turns out the planetary gear went, need a new transmission, costing over $3000. After doing some research on the internet I see there are thousands of complaints on something called the sunshell gear 4160E that seems to have been a problem on many of GMC passenger cars and light duty trucks. I even came across a service bulletin they put out about the problem, but never any recall on such a problem. I have a 2001 GMC Jimmy. The service bulletin runs in autos from 1993-2005. Now, I wonder, why no recall on such a huge problem. I mean it's the most costly thing to repair and happens without any warning at all. I would suggest this be looked into, I mean now I get a new transmission from GMC which I'm sure the problem is solved, but how many people have shelled out big bucks to fix this problem and mostly at less than 100,000 miles on their vehicles. Tranny's should last longer than that. I am sure I'm not the only complaint received on this subject from what I saw in my research. If it's a defect, recall it and fix it. We, as consumers work hard to have a vehicle we can rely on and to have a major problem like this happen is really not right. Obviously GMC is aware there was a problem for some time now. Thank you for your attention to this matter.

- Highland, NY, USA

problem #6

Sep 152004

Jimmy 6-cyl

  • Automatic transmission
  • 10,000 miles
Several problems with 2001 GMC Jimmy. Battery - was leaking & running down engine compartment - (under warranty) dealer was going to replace battery & fix where acid had eat up pan, under coating, wires, etc. Dealer did not do any of this - all they did was super glue bad battery connector back to battery. I went back to dealer to complain & was told that they did not have time to even look to verify that nothing was done. Warranty expired 2 days later. Go figure! brakes - have gone thru 2 sets of pads all around - had to replace 2 rotors so far- as they were eat up completely - nothing left on one side. Makes constant grinding noise like brakes are being ridden. Lights - had to have emergency switch replaced under warranty.( had no brake lights) transmission - always revving up or dropping down. Front end - popping cracking noises. Interior lights - dim & light always on everything. Ask 1st dealer for a print out of service on vehicle- was told that nothing had been done to it ever. Ask 2nd dealer for print out - found that vehicle had been towed in 3 times for problems ( I bought it with 10,000 miles on it) they had replaced a few things several times (forgive me I do not have that info handy at present) also, sometimes ie feels like accelerator sticks. I usually drive Chevy - this was my 1st & last GMC (I know that they are the same basically) I feel unsafe in my car & I'm currently trying to get my old Chevy running again so I can get rid of this piece of junk!!!! please help if possible. The time line is from July 2002 thru current Jan 2 2005.

- New Port Richey, FL, USA

problem #5

Feb 202004

Jimmy 4WD 6-cyl

  • Automatic transmission
  • 56,000 miles
Lost 2nd gear and reverse. Feels like a broken gear. 56K miles, so far GM is resistant to doing anything. I have owned many gms, this is probably the last.

- Saint Johnsbury, VT, USA

problem #4

Aug 092003

Jimmy 4WD 6-cyl

  • Automatic transmission
  • 46,000 miles


From July of 2002 until August 9, 2003 the following problems have occurred with my 2001 GMC Jimmy - which now has 46,000 miles registered:7/02: While driving vehicle slips from 2wd T O 4-wd low. Diagnosis: Transfer case shift module shorted 7/02: When sitting in traffic and accelerating transmission slips RPM. Diagnosis: Not able to find source 8/02: Again 4-wd low shift for no reason. Diagnosis: Found codes loss stored info. Also: Interior and exterior lights go on and off at will. Diagnosis: Could not find source of problem (this still happens) 8/15/03: While driving vehicles slips into 4WD low by itself. Diagnosis: Intermittent short. Repaired/replaced switch 8/03: While driving call stalls/dies. Diagnosis: Recall notice 01073. Completed required work 9/02: Dash lights come on and off while driving and check engine light stays on, transmission shifts strangely. Diagnosis: Tech scanned and found multiple transmission codes in system. Internal short in ignition switch. Replaced switch, cleared codes 11/12: Rear differential pinion seal leaking. Diagnosis: Replaced seal 3/02: Oil leaks from oil cooler lines. Diagnosis: Our of warranty, good will parts replaced upper and lower cooler lines leaking. R/R upper and lower oil cooler lines. Cost: $210 for labor. 4/03: Strange grinding noise while traveling out of our area. Diagnosis: Wheel hub on front disintegrated. Diagnosis: Replace wheel hub with ABS sensor and front wheel bearing hub - cost: $579.63 8/03: Car dies while driving. Diagnosis: Towed to mechanic garage (not GMC). Fuel pumb dead. Cost: $730.

- Framingham, MA, USA

problem #3

Jul 312003

Jimmy 4WD 6-cyl

  • Automatic transmission
  • 47,000 miles
2001 GMC Jimmy sle 47K miles automatic transmission already needs to be replaced. I am told that their is a seal that is leaking causing the vehicle to hesitate accelaration in first gear when cold.

- Seattle, WA, USA

problem #2

Nov 212001


  • Automatic transmission
  • miles
Vehicle has non-engaging transmission as at times it will not shift though it is an automatic and sometimes it starts out in 2nd and then drops down to 1st. Service engine soon light illuminated on 3 occasions as there were emissions problems. Front end makes constant popping noise. Problem has been lubed on 3 or more occasions as well as coil springs have been replaced and lubed. Brakes went completely out while trying to stop at an intersection. There was a rupture in the brake booster.

- Cordova, TN, USA

problem #1

Jun 102001


  • Automatic transmission
  • miles
3 transmission problems in 2 months. Once nearly cost me my life. I would like arbitration according to va state lemon laws.

- Ashburn, VA, USA

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