1994 GMC Suburban problems & reliability
411 owner complaints filed with NHTSA for the 1994 GMC Suburban, alongside 1 safety recall campaign. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
17 complaints report injuries (25 injured).
Federal crash records (FARS 2020–2023): 1994 GMC Suburban vehicles were involved in 7 fatal crashes with 5 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Service Brakes, Hydraulic | 270 | 66% |
| Visibility | 72 | 18% |
| Tires | 17 | 4% |
| Seats | 12 | 3% |
| Electrical System | 11 | 3% |
| Power Train | 10 | 2% |
| Engine and Engine Cooling | 9 | 2% |
| Seat Belts | 9 | 2% |
| Fuel System, Gasoline | 7 | 2% |
| Service Brakes, Air | 6 | 1% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Complaints by incident year
What owners report
“Tread / tire separation big bubble in tire severe shaking / severe pulling thought my truck needed an alignment very very very bad. *tr”
Tires · filed May 2, 2008
“Tire wobble/ no separation yet can feel it pulling / did wait for this one to bubble up and separate wasn't going to wait another 3 weeks for an accident possibly fatal to happen had this last remaining one removed from my vehicle. *tr”
Tires · filed May 2, 2008
“The windshield wipers worked after being manually "helped" since the time of purchase, but no longer. When I contacted gmc, they told me the current recall did not apply to my vehicle. I have purchased the circuit board myself and will now need to have someone install it. Recall needs to include additional vin #'s. I…”
Visibility · filed Jun 16, 2006
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- WINDSHIELD WIPER FAILURE
Engineering Analysis EA02006 · opened May 31, 2002 · closed Jul 23, 2003 · led to recall 03V210000
- OEM HITCH RECEIVER PLATFORM CRACKING
Defect Petition DP00001 · opened Jan 31, 2000 · open
- POOR BRAKE PERFORMANCE
Engineering Analysis EA95026 · opened Sep 20, 1995 · closed Sep 20, 2001 · led to recall 01I006000
Technical service bulletins
19 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1994 GMC Suburban. The 10 most recent:
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to…
PIC4696E · Service Bulletin/Repair Instructions · issued Nov 22, 2019
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to…
PIC4696D · Service Bulletin/Repair Instructions · issued Sep 5, 2019
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Technician will need to…
PIC4696C · Service Bulletin/Repair Instructions · issued May 31, 2018
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
130089009 · Service Bulletin/Repair Instructions · issued Sep 1, 2013
Diagnosis of cracked or broken transmission case. *tt 2006 and prior cars and light duty trucks. *tt
020730024A · Service Bulletin/Repair Instructions · issued Aug 1, 2005
93-00 full size utilities (gmt 400 old style only) ac blows warm and the high side pressure is too high. *mj
3005 · Service Bulletin/Repair Instructions · issued Jan 1, 2004
Windshield wiper failure due to cracked boulder joints on the controller circuit board. This special policy covers the condition for a period of seven years or 70,000 miles, whichever occurs first from the date the…
02054 · Service Bulletin/Repair Instructions · issued Feb 21, 2003
Special policy adjustment - windshield wiper motor failures. *tt
02054 · Service Bulletin/Repair Instructions · issued Feb 1, 2003
Diagnostic information for intermittent transmission downshift, slip, busy/cycling tcc or noisy cooling fan. *tt
990730016A · Service Bulletin/Repair Instructions · issued Oct 1, 2002
Some vehicles equipped with vacuum power brake assist and ebc4 abs brake modules may comment that their vehicles exhibit poor brake system performance, this may be attributed to brake pedal feel. *slc
01005 · Service Bulletin/Repair Instructions · issued Jun 29, 2001
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 1994 GMC Suburban has 1 NHTSA recall campaign — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 1994 GMC Suburban?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.